Marine Collagen vs. Bovine Collagen — What's the Difference?
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If you've been looking into collagen supplements, you've likely come across two main types — marine and bovine. Both are popular, but they differ in source, composition and absorption. Here's what you need to know.
What Is Marine Collagen?
Marine collagen is derived from fish skin and scales. It is predominantly Type I collagen — the most abundant type in the human body, and the type most associated with skin, hair and nail health. Marine collagen peptides are generally considered to have a smaller molecular size, which may support absorption.
What Is Bovine Collagen?
Bovine collagen is sourced from cattle hides and connective tissue. It contains both Type I and Type III collagen, making it a broader-spectrum option that supports not only skin but also gut lining, joints and connective tissue.
Key Differences at a Glance
| Marine Collagen | Bovine Collagen | |
|---|---|---|
| Source | Fish skin & scales | Cattle hide & connective tissue |
| Collagen Type | Primarily Type I | Type I & Type III |
| Best Known For | Skin, hair & nails | Skin, joints & gut health |
| Absorption | Smaller peptides | Slightly larger peptides |
| Suitable For | Pescatarians | Not suitable for vegans/vegetarians |
Which Is Better?
Neither is universally superior — it depends on your health goals. For skin-focused support, marine collagen is a popular choice. For broader joint and connective tissue support, bovine collagen offers a wider collagen profile.
Our Collagen Range
Explore our full collagen range to find the right fit for your needs: Collagen Ultra Tablets, Collagen Prime Cream, Collagenex Tablets and Collagen Ultra Cream.