07/09/2026
Collagen has gone from a niche beauty ingredient to one of the fastest-growing and most famous categories in the supplement industry. Demand for collagen now runs across beauty from within, healthy ageing, joint health and sports nutrition. Due to this popularity, many brands are looking to develop collagen products and one of the very first decisions you will make when doing so is where that supplemented collagen comes from. For most brands, that decision comes down to marine collagen vs bovine collagen.
We formulate with both collagen forms here at Parkacre, so we see how that single choice shapes everything that follows. Which you choose affects your label, your flavour system, your certification, your cost per unit and the consumer you can realistically sell to. In this guide, we will walk through what each collagen source actually is and how they compare, helping consumers and brands alike decide which is best for them.
Many people may not know that collagen is actually the most abundant protein in the body. This is because it gives structure to skin, hair, nails, bones, tendons and cartilage. Natural production of this collagen protein slows down as we age though, which is why so many consumers turn to supplements as a way to top up their collagen stocks.
Almost all supplement collagen is hydrolysed, which means that the protein has been broken down into much smaller collagen peptides, making it easier for the body to absorb it. Both marine and bovine collagen are hydrolysed peptides, so in that way they are doing the same job. The big difference is the animal that each type of collagen and the long list of consequences choosing one or the other creates. Those consequences include allergen labelling, certification, taste, price and how the product can be positioned, all of which are taken into account by brands when developing their collagen product with Parkacre.
Marine collagen, listed in our ingredient database as fish collagen peptide, is produced from fish skin and scales. In most cases, these are by-products of fish processing that would otherwise go to waste, which gives marine collagen a genuine upcycling story that sits well with brands and consumers focused on sustainability.
Marine collagen is predominantly Type I collagen, which is the most abundant form in the body and the type found in skin, hair, nails and tendons. That makes it a natural fit for beauty from within and hair, skin and nails formulations, but it is also used in joint support and sports nutrition products.
Bovine collagen peptide is a hydrolysed collagen sourced from cattle – specifically their hides and bones usually. It provides both Type I and Type III collagen, the two forms most prevalent in skin, hair, nails, bones and connective tissue. Type III sits alongside Type I in skin and connective tissue, meaning bovine gives brands a slightly broader profile than marine collagen on paper.
| Feature | Marine Collagen | Bovine Collagen |
|---|---|---|
| Source | Fish skin and scales, usually processing by-products | Cattle hides and bones |
| Collagen types | Predominantly Type I | Type I and Type III |
| Peptide size | Typically lower molecular weight | Typically higher, though ranges overlap |
| Allergen declaration | Yes, fish must be declared | None required |
| Suitable diets | Pescatarian | Neither vegetarian nor pescatarian |
| Halal and kosher | Generally simpler to certify | Requires certified sourcing |
| Taste and odour | Can carry a faint marine note | Largely neutral |
| Cost and supply | Higher cost, tighter supply | More cost effective, wide supply |
| Common formats | Tablets, capsules, powders | Powders, capsules, tablets, gummies |
| Best suited for | Premium beauty from within, pescatarian and sustainability led ranges | Mass market beauty, joint health, healthy ageing and value led ranges |
This is the most common question that is asked about these two collagen types and the broad answer is no.
Both forms are hydrolysed collagen peptides and both deliver the same characteristic amino acids, principally glycine, proline and hydroxyproline. Marine collagen’s lower molecular weight is often put forward as evidence of better absorption, which is why there is a perception that it is better. But currently there is little head-to-head clinical evidence showing that marine collagen produces better outcomes than bovine collagen at a comparable dose.
The real question of what collagen product is best comes down to the quality of the raw material, the dose you use and whether the consumer actually takes it consistently. It is the same conclusion we reached when we compared collagen powder and collagen tablets – consistency always beats format.
When we are formulating new collagen products with supplement brands, the decision between bovine and marine collagen generally comes down to these six things:
If you are still unsure, having both in your product range might be the best answer.
As a leading UK nutraceutical manufacturer working across private label supplements and custom supplement development, we source both marine and bovine collagen peptides and formulate with them daily at our Lincolnshire site.
For powders, our collagen powder manufacturing covers stick packs, sachets and tubs, which is where most collagen volume sits because of the doses involved. But for convenience-led products, we also produce collagen capsules and hold ready to market collagen powder products if you would rather move quickly on an existing formulation. Our EVE range, meanwhile, shows how collagen sits perfectly within a finished beauty brand.
Marine collagen and bovine collagen are both credible, effective collagen sources and neither is universally better. Marine gives you Type I collagen, lower molecular weight peptides, pescatarian suitability and a strong sustainability story, but at a higher cost and with a fish allergen on the label. Bovine, on the other hand, gives you Type I and Type III, a neutral taste, wider supply and better economics, but needs certified sourcing for halal and kosher markets.
For consumers, the best collagen type is the one you will take consistently. For brands, the best collagen is the one that fits your consumer, your price point and your certification requirements, backed by a proper manufacturer like Parkacre who can actually deliver it.
Get in touch today to talk through marine and bovine collagen for your next formulation.
