Short answer: marine collagen comes from fish skin and is mainly Type I collagen. Bovine collagen comes from cattle hide and contains Type I and Type III. Both are hydrolyzed into similar peptides, and there is no strong evidence that one works better for skin or joints. In India the practical difference is diet: marine suits people who eat fish but avoid beef, and bovine suits people who do not eat fish or have a fish allergy.
Marine vs bovine collagen at a glance
| Marine collagen | Bovine collagen | |
|---|---|---|
| Source | Fish skin and scales | Cattle hide |
| Collagen types | Mainly Type I | Type I and Type III |
| Diet | Suits pescatarians; not vegetarian | Not suitable for people avoiding beef |
| Allergy | Avoid with fish or seafood allergy | Avoid with beef allergy |
| Taste | Can have a faint fishy note unflavoured | Usually neutral |
| Price | Usually costs more | Usually cheaper |
Collagen types, explained simply
Type I is the most common collagen in the body and makes up most of the collagen in skin, bone and tendon. Type III sits alongside Type I in skin and blood vessels. Type II is found in cartilage and usually comes from chicken. Once collagen is hydrolyzed and digested, the body works with the amino acids and small peptides, so the type on the label matters less than it sounds.
Does one work better?
Both marine and bovine collagen have been studied for skin elasticity, hydration and joint comfort, with results that vary between studies and between people. There is no solid head-to-head evidence that one is clearly better. Taking either one every day for eight to twelve weeks matters more than the source.
Peptide size and mixing
Marine collagen is often processed into smaller peptides, which is one reason it dissolves easily in hot and cold drinks. Peptide size depends on how a brand processes the collagen, so check the label rather than assuming.
Which should you choose?
Choose marine if you eat fish and prefer to avoid beef, which is why most collagen sold in India is marine. Choose bovine if you do not eat fish or have a fish allergy. If you are vegetarian, neither suits you; see vegetarian foods that help your body make collagen instead.
NewYou makes only marine collagen: see the marine collagen powder range, or read marine collagen side effects before you start.
This article is general information, not medical advice. NewYou products are food supplements and are not intended to diagnose, treat, cure or prevent any disease.
