Marine collagen has long been valued as a functional powerhouse for restorative health. From the coastal cultures that prized fish broths for vitality to the modern wellness rituals of today, the marine collagen benefits remain unchanged: it provides the fundamental support required for resilient skin, a healthy gut lining, and the structural integrity of our joints and bones.
As a rich source of highly absorbable Type 1 collagen—the primary "glue" that makes up over 90% of our own collagen stores—it serves as the essential building block for our hair, nails, and connective tissues. This is why marine collagen supplements have become a staple in many wellness routines. It also offers an alternative to bovine sources for those motivated by religious, ethical, and environmental concerns.
But as the modern demand for marine collagen powder skyrockets, a murky reality lies beneath the surface. Not all marine collagen is created equal, and certification is the only way to ensure a clean, fully traceable product that you–and your body–can trust.
Marine collagen is a type of collagen protein derived from fish, shellfish, and other invertebrates, and made using the discarded parts of the fish, such as the scales or skin. Often derived from white fish such as cod, it is seen as an ethical and sustainable form of protein because it is sourced from byproducts of the fishing industry that would otherwise be discarded.
Marine collagen is extracted from the skin or scales of the fish using a process called hydrolysis, which is a complex multi-step process using water, gentle heat, and enzymes to break down large protein molecules into smaller marine collagen peptides. These tiny particles are easily absorbed through the gut wall, allowing your body to immediately utilise them. This is one of the key reasons why marine collagen benefits are so widely recognised in the wellness world.
"Wild-Caught" is a term that is extensively used in the industry, however, "wild" does not always mean "sustainable."
Without a third-party seal of approval, there is no guarantee that those fish were not harvested using destructive methods like bottom trawling, which devastates coral reefs and seafloor ecosystems. Currently, approximately 34% of global fish stocks are overfished.
MSC (Marine Stewardship Council) certified collagen is the gold standard for the industry, and supports fisheries that:
Protect fish stocks: ensuring we never take more than the ocean can naturally replenish
Minimise environmental impact: protecting the seafloor and non-target species (bycatch)
Preserve habitats: safeguarding the delicate "nurseries" of the deep sea
Many non-certified collagen brands source their peptides from farmed fish, such as tilapia. Intensive fish farming often relies on antibiotics, growth hormones, and synthetic feeds to manage disease in cramped conditions. These residues can find their way into the final product.
In contrast, MSC-certified wild-caught collagen ensures:
Zero antibiotics: pure, clean protein as nature intended
Optimal nutrition: a higher omega-3 to omega-6 ratio
Natural diet: fish that eat what they evolved to eat, free from PCB-contaminated commercial feed
Sustainability is at the heart of ancestral nutrition. Every year, tonnes of nutrient-rich fish skins are discarded by the food industry. Certified sourcing ensures a circular economy, turning waste into a high-value product without requiring additional natural resources.
Upcycling by-products into potent nutrition is the ultimate mark of respect for the animal—ensuring nothing goes to waste while providing your body with highly bioavailable Type I collagen to support wellness.
This is one of the often-overlooked marine collagen benefits, supporting both personal health goals and environmental responsibility.
The real source of quality in the collagen industry is the MSC logo. A lack of certification usually means a lack of traceability. If a brand is claiming “sustainable sourcing” but cannot tell you exactly which fishery their collagen came from, they cannot guarantee its safety, purity, or its impact on the ocean.
The MSC certification remains the "gold standard" for wild-caught fish, ensuring total accountability from the ocean to your smoothie—especially important as the popularity of marine collagen powder continues to grow.
When we founded Planet Paleo, we looked to our ancestors, who understood that we are only as healthy as the ecosystems we inhabit.
We are proud to be at the forefront of the sustainability movement as the first brand in the UK to achieve MSC certification for our Marine Collagen and the first brand in Europe to have a fully certified Marine Collagen range. Our collection is expertly formulated, laboratory-tested for purity, GMO-free and ethically sourced from the purest waters on earth. MSC certification means it meets rigorous standards for sustainability and environmental protection.
Planet Paleo also use LIAF-certified grass-fed collagen in our bovine range, and Soil Association certified organic bone broth and ingredients in our Bone Broth range. Sourcing transparency is the only way to align your personal health goals with the health of our planet. Make sure your marine collagen supplement has an MSC certified logo. Your skin—and the ocean—will thank you.
Ready to upgrade your daily routine with the UK's original MSC certified collagen?
Shop the Planet Paleo Marine Collagen Range here.
