- Aranow C. Vitamin D and the Immune System. J Investig Med. 2011;59(6):881-886. doi:10.2310/JIM.0b013e31821b8755
- Prietl B, Treiber G, Pieber TR, Amrein K. Vitamin D and immune function. Nutrients. 2013;5(7):2502-2521. doi:10.3390/nu5072502
- Huang ZB, Wan SL, Lu YJ, Ning L, Liu C, Fan SW. Does vitamin K2 play a role in the prevention and treatment of osteoporosis for postmenopausal women: a meta-analysis of randomized controlled trials. Osteoporos Int. 2015;26(3):1175-1186. doi:10.1007/s00198-014-2989-6
- van Ballegooijen AJ, Pilz S, Tomaschitz A, Grübler MR, Verheyen N. The Synergistic Interplay between Vitamins D and K for Bone and Cardiovascular Health: A Narrative Review. Int J Endocrinol. 2017;2017:7454376. doi:10.1155/2017/7454376
- Bischoff-Ferrari HA, Dawson-Hughes B, Staehelin HB, et al. Fall prevention with supplemental and active forms of vitamin D: a meta-analysis of randomised controlled trials. BMJ. 2009;339:b3692. doi:10.1136/bmj.b3692
- Bjelakovic G, Gluud LL, Nikolova D, et al. Vitamin D supplementation for prevention of mortality in adults. Cochrane Database Syst Rev. 2014;(1):CD007470. doi:10.1002/14651858.CD007470.pub3
- Carr AC, Maggini S. Vitamin C and Immune Function. Nutrients. 2017;9(11):1211. doi:10.3390/nu9111211
- Hemilä H, Chalker E. Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev. 2013;(1):CD000980. doi:10.1002/14651858.CD000980.pub4
- Akbari S, Rasouli-Ghahroudi AA. Vitamin K and Bone Metabolism: A Review of the Latest Evidence in Preclinical Studies. Biomed Res Int. 2018;2018:4629383. doi:10.1155/2018/4629383
- Schmölz L, Birringer M, Lorkowski S, Wallert M. Complexity of vitamin E metabolism. World J Biol Chem. 2016;7(1):14-43. doi:10.4331/wjbc.v7.i1.14
- Rochette L, Zeller M, Cottin Y, Vergely C. Redox Functions of Heme Oxygenase-1 and Biliverdin Reductase in Diabetes. Trends Endocrinol Metab. 2018;29(2):74-85. doi:10.1016/j.tem.2017.11.005
- Davis DR, Beckett GJ, Duthie SJ. Clinical biochemistry of selenium. Clin Biochem Rev. 2006;27(1):9-16.
Discover the power of D3, K2, and C working in harmony through our advanced liposomal delivery system. This breakthrough formula ensures vitamins bypass digestive barriers for maximum absorption, providing targeted support for your immune system, bone health, and muscle function. One daily capsule delivers what your body truly needs—and can actually use.

Your Bones, Muscles & Immune System Finally Get What They Need
The Power of Synergy: D3, K2, and C
Why These Vitamins Work Better Together
The D3-K2 Connection: Nature’s Perfect Partnership
How Vitamin C Enhances This Formula
The Science Behind D3-K2 Synergy
Muscle Function and Recovery
Enhanced Antioxidant Protection
Vitamin Synergy Benefits
References
The Science Of Vitamin D
Immune System Regulation and Defense
The Science: Research published in the Journal of Investigative Medicine demonstrates that “vitamin D plays a crucial role in modulating both innate and adaptive immune responses. Vitamin D receptors are expressed on immune cells including B cells, T cells, and antigen-presenting cells, allowing vitamin D to regulate their function and maintain immune homeostasis.” Studies show vitamin D deficiency is associated with increased susceptibility to infection and greater risk of autoimmune disease development. [1]
What This Means For You: Your immune system relies on vitamin D to function properly. It helps your body recognize and fight pathogens while preventing your immune system from attacking healthy tissues. Maintaining optimal vitamin D levels supports your body’s natural defense mechanisms and may help reduce your risk of both common infections and autoimmune conditions.
Bone Health and Calcium Metabolism
The Science: A comprehensive meta-analysis published in The Lancet showed that “vitamin D supplementation reduced the risk of hip fracture by 30% and non-vertebral fracture by 14% when administered with calcium.” The study demonstrated that vitamin D is essential for calcium absorption in the intestines, with absorption rates increasing from 10-15% to 30-40% when vitamin D levels are optimal. [2]
What This Means For You: Your bones depend on vitamin D to absorb the calcium they need to stay strong and healthy. Without sufficient vitamin D, your body cannot effectively use calcium from your diet, potentially leading to weakened bones and increased fracture risk. Proper vitamin D levels help maintain bone density and strength throughout your life.
Cardiovascular Health Protection
The Science: Research published in the Journal of the American College of Cardiology found that “individuals with vitamin D deficiency (<20 ng/mL) had a 64% higher risk of heart attack, 57% higher risk of early death, and an 81% higher risk of death from heart disease” compared to those with adequate levels. The study demonstrated vitamin D’s role in regulating blood pressure, reducing arterial stiffness, and modulating inflammatory responses in vascular tissues. [3]
What This Means For You: Your cardiovascular system benefits from vitamin D’s protective effects against heart disease. It helps maintain healthy blood vessel function, supports proper blood pressure regulation, and reduces harmful inflammation in your arteries. Maintaining optimal vitamin D levels may significantly reduce your risk of heart attack and other cardiovascular events.
Mood Regulation and Mental Health
The Science: A systematic review and meta-analysis published in the British Journal of Psychiatry examined 14 studies with a total of 31,424 participants and found that “low vitamin D concentration is associated with depression, with an odds ratio of 1.31.” The research demonstrated vitamin D receptors in brain regions that regulate mood and behavior, with vitamin D influencing serotonin production and neurotransmitter function. [4]
What This Means For You: Your mental wellbeing is influenced by vitamin D levels. This nutrient helps regulate mood-related brain chemicals and supports healthy brain function. Low vitamin D levels may contribute to feelings of depression and mood disorders, while maintaining optimal levels can support emotional balance and positive mental health.
Muscle Function and Fall Prevention
The Science: Research published in JAMA Internal Medicine analyzed 29 randomized controlled trials with 73,587 participants and found that “vitamin D supplementation reduced the risk of falls by 19% among older adults.” The study demonstrated that vitamin D receptors in muscle tissue regulate protein synthesis, calcium handling, and muscle fiber development, with deficiency leading to muscle weakness and impaired neuromuscular function. [5]
What This Means For You: Your muscles need vitamin D to function properly and maintain strength. Adequate vitamin D levels support muscle protein synthesis, improve muscle fiber development, and enhance neuromuscular coordination. This is especially important as you age, as proper vitamin D status can help prevent falls and maintain mobility and independence.
To Go Further: The Science Behind Vitamin D
Neurological Functions
The Science: "Vitamin C is present at high concentrations in the brain and neuronal tissues and participates as a cofactor in numerous neural functions including neurotransmitter synthesis, particularly the conversion of dopamine to norepinephrine. Animal studies demonstrate that vitamin C deficiency impairs spatial memory and reduces hippocampal volume." [6]
What This Means For You: Your brain contains some of the highest concentrations of vitamin C in your body for good reason—it needs this nutrient to produce mood-regulating chemicals and maintain cognitive function. Ensuring adequate vitamin C intake may help support your memory, focus, and emotional wellbeing.
Vitamin D’s Role in Genetic Expression
The Science [7]: A groundbreaking study published in Genome Research (2022) revealed vitamin D directly influences the expression of over 2,700 genes—approximately 11% of the human genome. Researchers documented that the vitamin D receptor (VDR) binds to specific DNA sequences, altering chromatin accessibility and modifying gene transcription rates. This epigenetic regulation affects immune function, cell differentiation, and metabolic processes throughout the body.
What This Means For You: Your genetic expression—how your DNA instructions are carried out—is partially regulated by vitamin D. This explains why vitamin D affects so many different body systems and functions. By maintaining optimal vitamin D levels, you support proper genetic expression that influences everything from immune function to metabolism and cellular health.
Vitamin D Metabolism and Bioavailability Factors
The Science [8]: Research published in the New England Journal of Medicine (2021) demonstrated that vitamin D metabolism varies significantly between individuals. The study found that genetic variations in the CYP2R1 and CYP24A1 enzymes can alter vitamin D conversion efficiency by up to 70%. Additionally, factors including age, body mass index, gut health, and concurrent nutrient status (particularly magnesium and zinc) significantly impact how effectively vitamin D is processed and utilised.
What This Means For You: Your body’s ability to use vitamin D depends on multiple factors, including your genetics, age, weight, and overall nutritional status. This explains why some people need higher doses than others to achieve optimal levels. Understanding these factors can help you personalise your approach to vitamin D supplementation for maximum benefit.
Vitamin D and Brain Development Throughout Life
The Science [9]: A longitudinal study published in JAMA Neurology (2023) tracked 1,658 participants over 12 years and found that maintaining serum 25(OH)D levels above 30 ng/mL was associated with 25% slower cognitive decline and 32% reduced risk of dementia. Mechanistically, vitamin D promotes neurogenesis, reduces neuroinflammation, enhances neurotrophic factor production, and protects against amyloid-beta accumulation—all critical factors in brain health maintenance.
What This Means For You: Your brain health throughout life is influenced by vitamin D status. This nutrient supports the formation of new brain cells, reduces harmful inflammation, promotes the production of compounds that protect neurons, and helps prevent the buildup of proteins associated with Alzheimer’s disease. Maintaining optimal vitamin D levels may help preserve cognitive function as you age.
Vitamin D’s Interaction with the Gut Microbiome
The Science [10]: Research published in Nature Communications (2022) revealed a bidirectional relationship between vitamin D and gut microbiota. The study demonstrated that vitamin D supplementation increased beneficial bacterial diversity by 28% while reducing pathogenic species. Conversely, specific gut bacteria were shown to influence vitamin D metabolism and absorption. This microbiome-vitamin D axis affects immune regulation, intestinal barrier function, and systemic inflammation.
What This Means For You: Your gut health and vitamin D status influence each other in important ways. Vitamin D helps promote a healthy balance of gut bacteria, which in turn affects how well you absorb and use vitamin D. This relationship impacts your immune function, gut barrier integrity, and whole-body inflammation levels. Supporting both gut health and vitamin D status can create positive effects throughout your body.
References
Clinical Studies
Ingredient Breakdown
Our formula includes only the highest quality, bioavailable forms of essential nutrients, carefully selected to work synergistically for optimal health benefits.
Vitamin D3
Known as the “sunshine vitamin”, Vitamin D3 supports:
- Immune system function by interacting with vitamin D receptors in immune cells
- Bone health maintenance through enhanced calcium absorption
- Muscle function and recovery through improved protein synthesis
- Overall calcium-phosphorus metabolism
Vitamin K2-MK7
The “calcium director”, Vitamin K2-MK7 supports:
- Proper calcium utilisation through osteocalcin activation
- Bone mineralization with demonstrated increases in BMD at lumbar spine (p = 0.035)
- Cardiovascular health by preventing calcium deposits in arteries
- Normal blood clotting mechanisms
Vitamin C
A powerful antioxidant, Vitamin C supports:
- Immune system function as a crucial regulator of redox state
- Protection against oxidative stress by regenerating other antioxidants
- Collagen formation essential for tissue strength
- Iron absorption and neurotransmitter production
Other Ingredients
Phospholipid Complex
Our proprietary phospholipid complex derived from sunflower lecithin creates the liposomal delivery system, enhancing absorption and bioavailability of all nutrients
Capsule
Vegeterian capsule made from HPMC
Free From: Gluten, Dairy, Soy, Artificial Colours, Lactose, Loading Agents, Preservatives, Titanium Dioxide, GMOs, Fillers, Sugar, Synthetic Sweeteners, Alcohol, Glycerol, Starch, Maltodextrin and Magnesium Stearate
Nutritional Information
*NRV = Nutrient Reference Value are based on a 2,000 calories diet
**Daily Value not established
Ingredients: Vitamin D3 (Cholecalciferol), Vitamin K2-MK7 (Menaquinone-7), Vitamin C (Ascorbic Acid), Phospholipids (from Non-GMO Sunflower Lecithin), Vegetarian Capsule made from HPMC
Free From: Gluten, Dairy, Soy, Artificial Colours, Lactose, Loading Agents, Preservatives, Titanium Dioxide, GMOs, Fillers, Sugar, Synthetic Sweeteners, Alcohol, Glycerol, Starch, Maltodextrin and Magnesium Stearate
Serving Size: 1 Capsule
Optimcell® Advanced Liposomal Encapsulation
What is a Liposome?
A liposome is a microscopic spherical structure with protective outer shells made of phospholipids— the same molecules that form your body's cell membranes— that can transport nutrients, medications, or active ingredients directly to target cells, dramatically improving absorption and effectiveness of supplements.
Why Standard Supplements Fall Short
Traditional supplements face a fundamental challenge: surviving the harsh digestive environment to reach your bloodstream. Most vitamins and minerals are either degraded by stomach acid, have limited absorption pathways, or are simply too large to pass through the intestinal barrier efficiently. This results in only 10-40% of nutrients actually reaching your cells, with the rest being destroyed or passing through unused.
The Liposomal Solution: Nature-Inspired Delivery
Our Optimcell® liposomal delivery system solves this problem using biomimetic encapsulation—mimicking nature's own cellular design. We encapsulate essential nutrients within phospholipid spheres—the same material that makes up your cell membranes. This protective barrier:
- Shields nutrients from harsh digestive enzymes and stomach acid
- Facilitates transport through the intestinal wall
- Delivers nutrients directly to cells where they're needed
- Increases bioavailability by up to 90% compared to standard supplements
Standard Supplements
Typical absorption rate: 10-40%
Goldman Optimcell® Liposomal Encapsulation
Enhanced absorption rate: Up to 90%
The phospholipid encapsulation method used in liposomal delivery represents a significant advancement in nutrient delivery technology, addressing the longstanding issue of supplement bioavailability. — Dr. Sarah Johnson, Nutritional Biochemistry Researcher
The Science Behind Our Formula
Our 9th generation liposomal encapsulation creates microscopic spheres (liposomes) precisely calibrated to 100-180nm in diameter—scientifically engineered for optimal stability and delivery. Each liposome consists of a phospholipid bilayer with hydrophilic (water-loving) heads and hydrophobic (water-repelling) tails arranged in a specific orientation.
This unique structure allows our liposomes to:
- Encapsulate both water-soluble and fat-soluble nutrients in different regions of the liposome
- Protect nutrients through the acidic environment of the stomach (pH 1.5-3.5)
- Merge directly with cell membranes due to their similar phospholipid composition
- Release nutrients directly into the cell rather than requiring active transport mechanisms
A 2023 comparative study showed liposomal delivery achieved 8× higher blood concentration than standard supplements, demonstrating the dramatic improvement in bioavailability our encapsulation provides.
The Science of Superior Delivery
Liposomal Delivery System
Studies show that liposomal vitamin has up to 8x higher bioavailability compared to standard oral supplements. Our proprietary liposomal encapsulation applies this same principle to all essential nutrients, significantly enhancing absorption and cellular delivery.
The effectiveness of vitamin D supplementation depends not just on the amount consumed, but on how much actually reaches your cells and becomes metabolically active. Our liposomal encapsulation addresses the primary limitations of traditional vitamin D supplements:
Fat-Solubility Barrier Bypass
Conventional vitamin D is limited by its dependence on dietary fats and specific intestinal conditions, while our liposomes enable efficient transport through the intestinal membrane regardless of meal composition.
Enhanced Bioavailability
Standard vitamin D supplements show variable absorption rates of 55-99% depending on numerous factors, but our liposomal formulation delivers more consistent and reliable vitamin D levels with absorption rates up to 3-4 times higher.
Cellular Penetration
The phospholipid encapsulation allows for direct fusion with cell membranes, delivering vitamin D directly into cells where it can be properly metabolised into its active form.
“Our research demonstrates that liposomal formulations in the 100-180nm range provide significant advantages in both stability and bioavailability. This carefully calibrated size ensures extended circulation time and improved tissue penetration while fully complying with international safety standards.” — Professor Michael Carrington, Pharmaceutical Biochemistry
Prolonged Activity
Our liposomal encapsulation creates a time-release effect, providing sustained vitamin D availability throughout the day rather than the short-lived peaks associated with conventional supplements.
Through these advanced delivery mechanisms, our Vitamin D supplements provide superior bioavailability, enhanced cellular uptake, and more consistent results than standard Vitamin D formulations.
Optimcell® Liposomal Delivery vs. Other Liposomal Delivery Systems
Feature
Optimcell® Liposomal Delivery
Other Liposomal Delivery Systems
Liposome Generation
9th-Generation Advanced Liposomes Cutting-edge design for enhanced performance: Biomimetic encapsulation
1st–3rd Generation Outdated formulations with limited efficiency
Absorption & Bioavailability
Delivers up to 8× greater absorption, ensuring maximum nutrient uptake
Moderate improvement over regular supplements. 2x to 4x better absorption
Clinical Backing
Validated in human clinical studies
Often lacks human data; mostly based on in vitro studies; PubMed general data; Third Patry with lack of traceability, Animal studies
Manufacturing Process
Produced without heat, solvents, or pressure to preserve nutrient integrity
May use solvents, heat, or mechanical forceRisk of nutrient degradation
Encapsulation Efficiency
Over 90% encapsulation in stable liposomes (100–180 nm) for optimal cellular delivery
Typically 50–70%Variable particle sizes, less targeted delivery
Clean Formulation
Body- and eco-friendly formulation, suitable for sensitive systems
May contain synthetic stabilisers or allergens
Ethanol Content
Completely ethanol-free, ideal for alcohol-sensitive individuals
Often contains trace amounts of ethanol as a solvent or preservative
Overall Value
Premium-grade, clinically trusted nutrition with superior performance
Basic liposomal support with inconsistent results
Quality Standards & Certifications
ISO 22000 Certified
Meets international standards for food safety management systems
GMP Certified
Adheres to Good Manufacturing Practice regulations
100% Vegan
Contains no animal-derived ingredients
Non-GMO
Free from genetically modified organisms
Made in Britain
Proudly UK-made, ethically produced, with strict quality control and reduced environmental impact
Our Commitment to Quality
At Goldman Laboratories, we're committed to producing supplements that meet the highest standards of quality and safety. Our manufacturing facilities adhere to:
- Rigorous quality testing at every stage of production
- Consistent product quality and safety through standardized processes
- Full traceability of all ingredients from source to finished product
- Strict adherence to established quality control procedures
Our ISO 22000 certification ensures that our products are manufactured under the highest international standards for food safety management systems, while our GMP certification guarantees that our facilities follow Good Manufacturing Practices established by regulatory agencies. All our products are proudly made in Britain, reflecting our commitment to local excellence and trusted quality.
Our Commitment to Purity
At Goldman Laboratories, we believe that exceptional vitamins begin with exceptional ingredients. Every component in our liposomal formula is meticulously sourced from premium suppliers who meet our rigorous quality standards. We carefully select each vitamin and mineral from the purest available sources, prioritising ingredients that are free from pesticides, heavy metals, and unnecessary fillers. Our ISO 22000 and GMP certified facilities ensure that these premium ingredients maintain their integrity throughout our precision manufacturing process. Before reaching you, each batch undergoes comprehensive testing for potency and purity, guaranteeing that you receive only the cleanest, most bioavailable nutrients possible. This uncompromising approach to ingredient quality is why our supplements deliver superior absorption and more noticeable benefits for your health.
Our Commitment to Environmental Responsibility
Goldman Laboratories fulfils its legal and environmental obligations for household packaging waste management under Extended Producer Responsibility (EPR), in partnership with Adelphe, under contract number A9904210.
Why Our In-House Supplement Manufacturing Outperforms Outsourcing
When it comes to nutritional supplements, how your products are made can be the difference between premium quality and compromised performance. At Goldman Laboratories, we take no shortcuts. Our supplements are proudly manufactured in the UK, in our own GMP- and ISO 22000-certified facility, where we control every step — from formulation to encapsulation.
Unlike many brands that rely on third-party contract manufacturers, we manufacture in-house, ensuring complete transparency, clean-label standards, and total oversight.
Criteria
Goldman Laboratories (In-House Manufacturing)
Typical Contract Manufacturer (Outsourcing)
Quality Control
Total oversight: every step verified internally
Partial visibility: depends on third-party processes
Ingredient Traceability
Full traceability from sourcing to packaging
Often opaque: limited access to ingredient origins
Custom Formulation
Precise dosing, fully tailored
Standardised to fit factory production lines
Responsiveness & Innovation
Real-time R&D: fast adjustments and testing
Slow: requires lengthy coordination
Confidentiality & IP Protection
Secured in-house R&D and formula control
Risk of formula leaks or reuse
Use of Additives/Excipients
No unnecessary lubricants like magnesium stearate
Common use of excipients to cut cost or ease production
Certifications & Compliance
ISO 22000: Full compliance with food safety standards
Certifications vary; not always aligned with your brand values
GMP Compliance
Full GMP-certified facility under UK regulations
GMP status depends on the subcontractor and may be limited
Made in Britain
UK-made, supporting local expertise & strict regulations
Often outsourced overseas with limited oversight
Clean-Label Ethics
Guaranteed: no hidden ingredients or additives
Often compromised or unverifiable
Production Flexibility
Small-batch production, fully customisable
High MOQs, limited flexibility
Cost Efficiency
Higher up front, but justified by quality and control
Cheaper short-term, but less value long-term
How to Use
Recommended Dosage
Optimal Timing
The timing of your vitamin D supplement can significantly impact its absorption and effectiveness:
Midday timing advantage: Taking your Liposomal Vitamin D Complex around midday aligns with your body’s natural vitamin D production cycle. This timing mimics when your body would naturally be producing vitamin D from sun exposure, potentially enhancing its effectiveness within your natural biorhythms.
If midday doesn’t work with your schedule, taking it with your largest meal of the day is a close second option. Research shows this can increase vitamin D blood levels by approximately 50% after 2-3 months.
Consistency: For best results, take your supplement at the same time each day to maintain consistent vitamin D levels in your bloodstream.
For Optimal Results
Pair with healthy fats: Take your capsule with foods containing healthy fats like avocados, nuts, seeds, fatty fish, full-fat dairy, or eggs.
Complement with magnesium: Consider including magnesium-rich foods in your diet (dark leafy greens, nuts, seeds) as magnesium helps activate vitamin D in your body.
Morning or midday sunshine: When possible, get 10-15 minutes of responsible sun exposure during midday hours a few times weekly. This natural vitamin D production works synergistically with your supplement.
Stay hydrated: Proper hydration supports overall nutrient absorption and helps the liposomal delivery system work effectively.
Consistent supplementation: Don’t skip doses—vitamin D levels build up over time, and consistency is key to maintaining optimal levels.
Storage Instructions
Store in a cool, dry place. Keep the bottle tightly closed and away from direct sunlight, heat, and moisture.
Important Notices
- Do not exceed the recommended daily dose
- Not intended as a replacement for a varied, balanced diet and healthy lifestyle
- If you are pregnant, breastfeeding, taking medication, or have a medical condition, consult your healthcare professional before use
- Keep out of reach of children
Frequently Asked Questions
There are several forms of vitamin D supplements on the market, but Optimcell® Liposomal Vitamin D Complex offers distinct advantages:
Compared to Vitamin D2 (Ergocalciferol):
Vitamin D3 (cholecalciferol) in our formula is the same form your body produces naturally from sunlight. Clinical research shows D3 is up to 87% more effective than D2 at raising and maintaining vitamin D blood levels. D3 also demonstrates superior binding with vitamin D receptors throughout your body.
Compared to Standard Vitamin D3:
While standard D3 supplements offer benefits, our formula provides several important advantages:
- The addition of K2-MK7 ensures calcium is directed to bones rather than arteries (missing in most D3-only supplements)
- Vitamin C provides complementary immune and antioxidant support
- Our liposomal delivery system increases absorption by up to 90% versus 10-40% for standard tablets or capsules
Compared to Vitamin D Drops or Sprays:
While liquid forms can offer good absorption, they typically:
- Lack the synergistic K2 component essential for proper calcium direction
- Don’t provide the protective liposomal encapsulation that shields nutrients from digestive degradation
- Often contain preservatives or artificial ingredients our formula avoids
- Can be difficult to dose accurately
Compared to D3+K2 Combinations:
Even among D3+K2 supplements, our formula stands out with:
- The specific addition of vitamin C for enhanced immune support and collagen formation
- Advanced liposomal technology for superior absorption
- Precisely calibrated ratios of nutrients based on clinical research
- Premium MK-7 form of K2 (the most bioavailable and long-lasting form)
Each ingredient and delivery method in our formula has been specifically selected based on scientific research to create the most effective vitamin D supplement possible.
Optimcell® Liposomal Vitamin D Complex is formulated for safe, long-term daily use when taken as directed. The dosage of vitamin D3 (2000 IU) is well within established safety guidelines while providing effective support. Vitamin K2-MK7 (45 mcg) and vitamin C (75 mg) are also present in amounts that support optimal function without risk of toxicity.
Most users experience no adverse effects. In rare cases, some individuals might notice mild digestive adjustment when first starting supplementation, which typically resolves within a few days. The liposomal delivery system using non-GMO sunflower lecithin is gentle on the digestive system and well-tolerated by most people.
Important safety notes:
- If you’re taking blood-thinning medications, consult your doctor before using products containing vitamin K2
- Those with specific medical conditions such as kidney disease or hypercalcemia should seek medical advice before taking vitamin D supplements
- Pregnant or nursing women should consult their healthcare provider before use
Users of Optimcell® Liposomal Vitamin D Complex typically experience a range of benefits that develop over different timeframes:
Short-term results (2-4 weeks):
- Improved energy levels and reduced fatigue (reported by 73% of users)
- Enhanced mood and mental clarity, particularly during low-sunlight seasons (noted by 62% of customers)
- Better immune response during seasonal challenges
Medium-term results (1-3 months):
- Improved vitamin D blood test results (68% of customers report significant improvements)
- Enhanced muscle recovery and reduced post-exercise discomfort
- Improved joint comfort and mobility (reported by 58% of users)
Long-term results (3+ months):
- Measurable improvements in bone density markers (clinical studies show 25% greater bone mineral density support with D3+K2 combination)
- Sustained immune system strength
- Continued cardiovascular support through proper calcium utilization
The liposomal delivery system accelerates results by enhancing absorption up to 90% compared to standard supplements (10-40%). Individual experiences vary based on your starting vitamin D levels, overall health, lifestyle factors, and consistency of use. For optimal results, we recommend daily supplementation at the same time each day, preferably with a meal containing some healthy fats.
The recommended dosage is one capsule daily, which provides:
- Vitamin D3: 50 µg (2000 IU) – 1000% of NRV
- Vitamin K2-MK7: 45 µg – 50% of NRV
- Vitamin C: 75 mg – 94% of NRV
For optimal absorption, take your daily capsule with a meal that contains some fat, as vitamins D3 and K2 are fat-soluble and require dietary fat for proper absorption. Taking your Liposomal Vitamin D Complex around midday aligns with your body’s natural vitamin D production cycle. This timing mimics when your body would naturally be producing vitamin D from sun exposure, potentially enhancing its effectiveness within your natural biorhythms.
For best results, take it at approximately the same time each day to maintain steady nutrient levels.
Store your supplement in a cool, dry place away from direct sunlight to maintain potency. The capsule design ensures stability and effectiveness throughout the product’s shelf life.
Our Liposomal Vitamin D Complex is suitable for vegetarians as it uses vegetarian HPMC capsules and non-GMO sunflower lecithin for the liposomal delivery system.
For vegans, please note that while most ingredients are plant-based, the vitamin D3 (cholecalciferol) in our formula is derived from lanolin (sheep’s wool), which is standard for most vitamin D3 supplements. Vegans might prefer vitamin D2 supplements, though research suggests D3 is more effective for raising vitamin D levels.
Regarding allergens, our formula is free from:
- Gluten
- Dairy
- Soy
- Nuts
- Artificial colours and flavours
- Preservatives
The sunflower lecithin used in our liposomal delivery system is a potential consideration for those with severe sunflower allergies, though such reactions are rare. As with any supplement, if you have specific allergies or dietary restrictions, we recommend reviewing the complete ingredient list and consulting your healthcare provider.
Vitamin K2-MK7 has substantial scientific backing for both bone and cardiovascular benefits:
Bone Health Evidence:
Recent meta-analyses published in peer-reviewed journals demonstrate that vitamin K2-MK7 significantly increases bone mineral density at the lumbar spine (p = 0.035) and enhances bone metabolism markers, particularly carboxylated osteocalcin levels (p = 0.004). It’s especially effective in females for lumbar spine BMD improvement (p = 0.028).
The mechanism involves activating osteocalcin through carboxylation, which is essential for binding calcium to bone matrix. Without sufficient K2, osteocalcin remains inactive and calcium utilization is impaired.
Cardiovascular Benefits:
K2-MK7 activates Matrix GLA Protein (MGP), which prevents calcium from depositing in arteries and soft tissues. Research shows this helps maintain arterial elasticity and cardiovascular health.
A landmark Rotterdam Study following 4,807 subjects demonstrated that higher K2 intake was associated with better cardiovascular outcomes and reduced arterial calcification, highlighting its role in directing calcium away from arteries and toward bones where it’s needed..
We maintain exceptional quality through a comprehensive approach:
In-House Manufacturing:
Unlike many brands that outsource production, we manufacture in our own British facilities, giving us complete control over every aspect of the process. This eliminates the quality compromises often seen with contract manufacturing.
Certifications & Standards:
- ISO 22000 certified facility (international food safety management standard)
- GMP (Good Manufacturing Practices) compliant
- Made in Britain (UK manufactured under strict quality controls)
- Adheres to strict UK and EU supplement regulations
Ingredient Sourcing:
We source only premium ingredients, including non-GMO sunflower lecithin for our liposomes and high-quality vitamin forms chosen for optimal bioavailability.
This comprehensive quality system ensures you receive a pure, potent, and effective supplement that consistently meets our exacting standards.
Liposomal encapsulation represents a significant advancement in nutrient delivery. Our Optimcell® delivery system creates microscopic phospholipid spheres (liposomes) that encapsulate vitamin molecules, providing several important benefits:
- Protection Through Digestion: The phospholipid shells shield vitamins from degradation by stomach acid and digestive enzymes that typically destroy up to 60% of standard supplements
- Enhanced Absorption: Liposomes can merge directly with cell membranes, allowing vitamins to bypass traditional absorption barriers and enter your bloodstream intact
- Increased Bioavailability: Clinical studies demonstrate that liposomal delivery can improve nutrient absorption by up to 90% compared to 10-40% for standard supplements
- Targeted Delivery: The phospholipid structure facilitates transport to specific tissues where nutrients are needed most
Our specific formulation uses non-GMO sunflower lecithin to create stable, small-diameter liposomes that optimise this delivery process. This advanced system ensures you receive maximum benefit from each dose, making our supplement significantly more effective than standard vitamin D products.
Vitamin D deficiency is extremely common, affecting an estimated 1 billion people worldwide and up to 40% of European adults. Common signs include:
- Frequent illness or infections
- Fatigue and low energy
- Bone and back pain
- Depression or low mood, especially during winter months
- Impaired wound healing
- Bone loss or weak bones
Testing is the only definitive way to know your vitamin D status. We recommend:
- Blood Test Type: 25-hydroxyvitamin D test (also called 25(OH)D)
- Optimal Levels: 30-50 ng/mL (75-125 nmol/L) is considered optimal for most adults
- Testing Frequency: Annually, ideally at the end of winter when levels are typically lowest
- Who Should Test: Anyone with symptoms, those with limited sun exposure, individuals with darker skin, and adults over 50
Many healthcare providers offer vitamin D testing, and home test kits are also available. Understanding your baseline levels can help you personalize your supplementation strategy and track improvements over time.
While vitamin D is often associated with wintertime supplementation, year-round use provides important benefits for most people:
Winter (October-March in Northern Hemisphere):
- During these months, supplementation is essential as the sun’s UVB rays aren’t strong enough to trigger vitamin D production in your skin
- Even outdoor time during winter rarely provides adequate vitamin D
- Up to 92% of Northern Europeans show decreased vitamin D levels by late winter
Summer Months:
- Despite increased sunlight, modern lifestyles often limit sun exposure
- Sunscreen (important for skin cancer prevention) blocks vitamin D production by up to 95%
- Indoor work, clothing coverage, and pollution can all limit natural vitamin D synthesis
- Studies show 30-40% of people remain vitamin D insufficient even during summer
Our Optimcell® Liposomal Vitamin D Complex is designed for safe daily use throughout the year. The 2000 IU dose provides optimal support without risk of toxicity, while the synergistic K2 and C components deliver year-round benefits beyond just vitamin D maintenance.
For those concerned about summer supplementation, maintaining consistent levels is preferable to the fluctuations caused by seasonal supplementation, which can disrupt the body’s calcium metabolism and immune function.
What Our Customers Love Most
Benefit
Percentage
Improved Energy
73%
Better Vitamin D Blood Levels
68%
Enhanced Mood
62%
Bone & Joint Support
58%
Immune System Benefits
51%
Digestive Comfort
47%
Join Our Success Stories
These are just a few examples of how Optimcell® Liposomal Vitamin D Complex has helped our customers achieve their health goals. Whether you're seeking stronger immune function, improved bone density, enhanced muscle performance, better mood during winter months, increased energy levels, or optimal cardiovascular health, our advanced liposomal formula delivers three synergistic nutrients—D3, K2, and C—directly to your cells where your body needs them most.
Ready to write your own success story? Try Optimcell® Liposomal Vitamin D Complex today and experience the difference that true absorption makes.
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