Why Marine Collagen Supplements Aren’t for Everyone: Exploring Alternatives That Work

Marine collagen, often dubbed the “fountain of youth from the sea,” is derived from fish, specifically their skin and scales. It’s become a staple in the wellness world, especially in marine collagen supplements, for its promising benefits. But what makes it so sought after?

At its core, marine collagen is rich in Type I collagen, which plays a crucial role in keeping your skin supple, hair shiny, and joints flexible. Unlike collagen from other sources, marine collagen boasts a finer molecular structure, meaning it integrates smoothly with your body’s natural systems. This makes it particularly appealing for those chasing that radiant skin glow or hoping to stay agile as the years roll on.

However, let’s not romanticize it too much. While marine collagen supplements might sound like a no-brainer, they aren’t everyone’s cup of tea. For starters, if you have a fish allergy, this could spell trouble. And let’s not forget the taste—it might have a faint oceanic essence, which some find off-putting. For those on plant-based diets, marine collagen supplements are simply a no-go.

Let's discuss reasons,

Marine collagen supplements are derived from fish skins, scales, or other marine sources, which can pose a problem for individuals with fish or shellfish allergies. Allergic reactions can range from mild symptoms like itching and rashes to severe anaphylactic reactions, which are life-threatening. These risks often stem from trace proteins that may remain during processing. Even if a product claims to be purified, it’s wise to proceed with caution. If you suspect or know you have such allergies, always consult a healthcare professional before incorporating marine collagen supplements into your routine. (1)

For those following vegan, vegetarian, or plant-based diets, marine collagen supplements are not an option since they are animal-derived. Ethical or religious reasons may also deter people from consuming these products. However, collagen synthesis in the body can still be supported through plant-based nutrients like vitamin C, silica, and amino acids, which help boost natural collagen production. For individuals avoiding animal-based products, these alternatives offer a cruelty-free way to maintain skin and joint health.(2)

One of the lesser-discussed risks of marine collagen supplements is heavy metal contamination. Fish and other marine organisms can accumulate heavy metals like mercury, lead, and cadmium due to ocean pollution. 

These contaminants can make their way into collagen products if proper purification methods aren’t used. While reputable brands test for contaminants, not all manufacturers adhere to rigorous standards. Always look for third-party certifications to ensure the product meets safety requirements and has been tested for heavy metal residues.(3)

Marine collagen production raises significant environmental concerns. Overfishing to meet the growing demand for collagen can disrupt marine ecosystems and lead to the depletion of fish populations. In addition, waste from fish processing, when not managed properly, contributes to environmental degradation. For eco-conscious consumers, these factors might conflict with their values. While some companies claim their marine collagen is sourced sustainably, verifying such claims through transparent supply chains and certifications is crucial. (4)

Eggshell membrane collagen is a powerful and often overlooked alternative to marine collagen. Derived from the thin layer lining eggshells, it is naturally rich in collagen types I, V, and X, which are essential for maintaining skin elasticity and supporting joint health. 

Additionally, it contains glucosamine, chondroitin, and hyaluronic acid—key compounds for joint mobility and hydration. Unlike marine collagen, which is predominantly type I collagen, eggshell membrane offers a broader spectrum of benefits, particularly for joint and connective tissue repair.

Goldman Laboratories’ Skin Glow Capsule incorporates eggshell membrane collagen, delivering these benefits while promoting healthier, glowing skin and supporting joint function. If you're looking for a collagen supplement that not only benefits your skin but also supports overall joint health, this could be an excellent option for you.

• Why it’s superior: 
• Eggshell membrane collagen is often considered a more sustainable option as it repurposes an agricultural byproduct, reducing waste. It also provides a comprehensive nutrient profile beyond what marine collagen offers, especially for joint health. 

Bovine collagen is derived from the hides or bones of cows and is particularly rich in type I and III collagens. These types of collagen are essential for enhancing skin elasticity, promoting wound healing, and supporting muscle and bone health. Bovine collagen also supports gut lining repair, making it an excellent choice for those with digestive health concerns. Compared to marine collagen, bovine collagen is more widely available and often comes at a more accessible price point.

• Why it’s superior:
• Bovine collagen offers versatility in its applications, targeting both skin and joint health effectively. When sourced ethically, such as from grass-fed cows, it combines efficacy with sustainability, which can be harder to achieve with marine collagen. 

Vegan collagen boosters, while a good option for strict vegans or those with dietary intolerances, often don’t match the effectiveness of eggshell or bovine collagen in delivering visible results. 

Here’s why: animal-based collagens like eggshell and bovine collagen directly supply your body with collagen peptides—these are the actual building blocks needed for skin, joint, and connective tissue health. Since they’re already broken down into a bioavailable form, your body can easily absorb and use them for repair and regeneration.

In contrast, vegan alternatives don’t contain collagen itself. Instead, they include nutrients like vitamin C, silica, or plant-based amino acids that encourage your body to produce its own collagen. This process is slower and less efficient because it relies on your body’s ability to convert these precursors into collagen—a step that animal-derived collagens bypass entirely.

Additionally, the structural differences are significant. Collagen from eggshell or bovine sources closely mimics the collagen in human tissues, especially types I, III, and V, which are vital for skin elasticity and firmness. Vegan options lack this structural compatibility and diversity, which can limit their impact.

While vegan collagen boosters are a thoughtful alternative for those committed to plant-based living, they simply don’t provide the same immediate or robust results as eggshell or bovine collagen. 

• Why it’s superior: 
• Vegan collagen boosters avoid common concerns associated with marine collagen, such as allergens and sustainability issues. They are inclusive for all diets and focus on holistic health benefits by improving the body’s innate ability to produce collagen. 

While marine collagen has its benefits, these alternatives offer distinct advantages. Eggshell membrane collagen is unmatched in its joint-focused benefits and sustainability. Bovine collagen provides a broader range of health benefits at a more affordable price. Vegan collagen boosters, though indirect, promote a more ethical and natural approach to collagen production.

When it comes to selecting the right collagen supplement, there are several factors to consider, from potential allergens and sustainability to personal health needs. Here are a few tips to help you make an informed decision:

One of the first considerations when choosing a collagen supplement is whether you have any allergies. For example, marine collagen may not be suitable for those with fish or shellfish allergies. If you're unsure, always check the label for any allergen warnings, and consult with a healthcare provider if necessary. On the other hand, bovine collagen and eggshell membrane collagen might be better alternatives for individuals with seafood sensitivities. Vegan collagen boosters, made from plant-based ingredients, can be an excellent choice for those with multiple allergies, including animal-derived allergens.

If sustainability is important to you, consider the environmental impact of your collagen source. Marine collagen often raises concerns over the depletion of marine resources, particularly when sourced from overfished areas. Conversely, bovine collagen can be sourced from grass-fed cows, which, if farmed sustainably, may offer a better option for environmentally conscious consumers. For those who are vegan or environmentally conscious, plant-based collagen boosters provide a sustainable, cruelty-free alternative.

Your specific health goals should guide your choice of collagen supplement. If you’re looking for skin benefits, marine collagen and bovine collagen both provide type I collagen, which is essential for maintaining skin elasticity and hydration. For joint health, eggshell membrane collagen offers additional compounds like glucosamine and chondroitin that can aid in joint repair and mobility. Vegan collagen boosters are a great option if you're looking to support your body’s collagen production naturally, without relying on animal-derived ingredients.

Eggshell membrane collagen is generally safe, but there are a few considerations. If you have an egg allergy, consuming this type of collagen could lead to allergic reactions, such as itching, rash, or more severe symptoms like difficulty breathing. Additionally, mild digestive discomfort, such as bloating or nausea, has been reported, particularly when first starting supplementation. These effects are usually temporary and diminish over time. To avoid any adverse reactions, ensure you use a high-quality product from a reputable brand.

Bovine collagen, sourced from cow hides or bones, is widely used and well-tolerated. However, some users may experience digestive issues like bloating, diarrhea, or a feeling of fullness. These side effects are generally mild and short-lived. In rare cases, individuals might have an allergic reaction if the collagen is not thoroughly purified or processed. Additionally, poorly sourced bovine collagen carries a risk of contamination, so it’s important to choose products that are certified and sourced from grass-fed, ethically raised cows.

Vegan collagen boosters are plant-based and free of animal-derived allergens, making them a safe choice for most individuals. However, some people might react to specific ingredients in the booster, such as zinc, silica, or plant extracts, resulting in mild allergic reactions or sensitivities. Overconsumption of certain nutrients, like vitamin C, can lead to temporary side effects such as diarrhea or stomach upset. Always follow recommended dosages to avoid such issues.

When it comes to collagen supplements, marine collagen supplement is often praised for its skin and joint benefits, but it’s not for everyone. If you have fish allergies, follow a plant-based diet, or are concerned about sustainability, there are alternatives that might suit you better. Options like eggshell membrane collagen and bovine collagen offer a wider range of health benefits, including joint support, while vegan collagen boosters provide a more natural way to encourage your body’s collagen production without animal-derived ingredients. It all boils down to what aligns best with your health goals, ethics, and personal preferences. So, take your time exploring the alternatives to find the one that works best for you!

1. http://doi.org/10.1016/j.jaci.2021.10.023

2. http://www.mdpi.com/1422-0067/22/10/5279

3. http://doi.org/10.1016/j.fct.2020.111377

4. http://doi.org/10.1016/j.marenvres.2022.105498