Marine vs Bovine Collagen: Understanding the Difference

Not All Collagen Is Created Equal

When choosing a collagen supplement, the source matters.

Marine. Bovine. Chicken.

Each offers different structural types and benefits.

Sourced from fish.

Primarily Type I collagen — the same type that makes up the majority of collagen in your skin.

Why it’s popular:

Marine collagen is frequently chosen for those focused on skin, hair and overall structural support.

Sourced from cows.

Contains both Type I and Type III collagen.

Often more affordable, widely available, and commonly used in powder form.

Primarily Type II collagen.

Often targeted toward joint-specific support due to its cartilage source.

Regardless of source, collagen should be hydrolysed — meaning broken down into smaller peptides for improved absorption.

Absorption determines usability.

For skin elasticity, hydration and aesthetic-focused wellness, marine collagen is often preferred.

For broader joint and bone support, other sources may also be considered.

The key isn’t just taking collagen — it’s taking the right type for your goals.