Bovine Collagen: Hides vs Cartilage and the Type Difference

Yes, the source tissue determines which collagen type is present. This is not a marketing distinction — it follows directly from the biology of connective tissue. If you have bought a bovine collagen product and are wondering whether it contains Type II, the answer depends entirely on where the collagen was extracted from.

Why tissue source determines collagen type

The human body contains at least 28 recognised collagen types, but three dominate commercial supplements. Type I is the most abundant structural protein in the body, found in skin, tendons, ligaments and the dermis. Type III is found alongside Type I in skin, blood vessels and other soft connective tissues. Type II is different: it is the primary collagen in cartilage, particularly hyaline cartilage.

Collagen is not uniformly distributed across an animal's body. Each tissue produces the type suited to its mechanical function. Cartilage is built for compression and needs the tightly coiled fibril structure of Type II. Hides and connective tissue are built for tensile strength and flexibility, which is where Types I and III dominate. You cannot extract Type II from a hide in meaningful quantities, and you cannot extract significant Type I from cartilage. The source fixes the output.

What comes from hides

Bovine hides — the skin and underlying connective tissue — are the most common source for hydrolysed bovine collagen powders. The hide is rich in Types I and III. Hydrolysis breaks the collagen chains into shorter peptides, which dissolve readily in liquid. The resulting powder is overwhelmingly Types I and III; Type II is not a meaningful constituent of hide-derived collagen.

Pump House Pure Bovine Collagen Powder is hydrolysed Type I and III peptides, sourced from the hides of grass-fed, pasture-raised EU cattle. Each 10g serving delivers 9.3g of protein. It is not a source of Type II collagen, and it does not claim to be. A bovine collagen capsule format is also available; see the product pages for full details.

What comes from cartilage

Type II collagen supplements are typically derived from bovine or chicken cartilage — sternal cartilage from chickens is particularly common. The cartilage matrix is dominated by Type II collagen and glycosaminoglycans such as chondroitin. Because Type II has a different fibril structure from Types I and III, it is often sold in a native (undenatured) form rather than fully hydrolysed, on the basis that intact structure may be relevant to the way it is processed in the gut. The evidence base here is genuinely unsettled; we are not going to resolve it in this article.

The point is that a cartilage-derived product and a hide-derived product are not interchangeable. They are different source materials yielding different collagen types.

What bones contribute

Bone broth occupies a third category. Bones contain Type I collagen in the bone matrix, but bone broth is a poor delivery mechanism: the collagen concentration is highly variable, the peptide profile is not standardised, and the product is not hydrolysed in a controlled way. Dedicated supplements use targeted extraction to produce a consistent peptide profile. Bone is not the source for Pump House's bovine collagen powder or the hide-derived powders that make up most of the category.

The label should tell you

A well-labelled bovine collagen product states both the collagen type and the source tissue. If a label says Type I and III, the source is connective tissue or hides, not cartilage. If it says Type II, the source is cartilage. If the label does not specify either the type or the tissue source, that is a gap worth querying before you buy. Our guide to reading a bovine collagen label covers what to look for.

Which type should you choose

We will not tell you one type is superior for any health outcome, because the evidence does not support that framing cleanly and UK regulations do not permit health claims for collagen supplements in any case. What we can say is that they are genuinely different products. Choosing between them is a question about what you are looking for and what the research in each area shows — research that is still developing. If you are considering collagen alongside a specific health condition or concern, speak to your GP before making a decision.

If you are deciding between bovine and marine options rather than between bovine collagen types, the comparison between bovine and marine collagen may be more relevant. Marine collagen is also Type I, sourced from fish rather than cattle. Our marine collagen powder CONTAINS FISH (Ingredients: 100% Hydrolysed Collagen (Fish)). It is not suitable for anyone with a fish or shellfish allergy or intolerance.

The short version

Source tissue fixes collagen type. Hides and connective tissue give Types I and III. Cartilage gives Type II. The two are not substitutes for each other, and no product can truthfully claim to deliver significant quantities of both from the same source tissue. If you bought a hide-derived bovine collagen and expected Type II, you have the wrong product — not because it is inferior, but because it was never designed to be that thing.