Collagen has become one of the most popular wellness supplements and for good reason. As the most abundant protein in the human body, collagen plays a key role in skin, joints, muscles, connective tissue, hair and nails.

But once you start shopping for collagen, things can get confusing fast. Marine collagen? Bovine collagen? Different types? Different benefits? Let’s break it down simply.

First…. What Is Collagen?

Collagen provides structure and strength throughout the body. From our mid-20s onwards, natural collagen production begins to decline, which may contribute to:

Fine lines and reduced skin elasticity
Joint stiffness
Weaker hair and nails
Slower tissue repair

Supplementing with collagen peptides (hydrolysed collagen) provides amino acids that support the body’s own collagen production.

🐟 What Is Marine Collagen?

Marine collagen is derived from fish skin and scales, usually from wild-caught or responsibly farmed fish. These parts are often food industry by-products, making marine collagen a more sustainable option.

Marine collagen is rich in Type I collagen, the primary collagen found in skin, hair and nails.

Because marine collagen peptides are smaller in molecular size, they’re often considered highly bioavailable, meaning they’re easily absorbed and utilised by the body.

Common benefits of marine collagen:

Supports skin hydration and elasticity
Helps strengthen hair and nails
Supports connective tissue
Gentle on digestion
Contains glycine, which may support gut lining and sleep quality
Often preferred for beauty-focused goals

Marine collagen is also suitable for pescatarians and those avoiding beef.

🐄 What Is Bovine Collagen?

Bovine collagen comes from cow hides and bones. It’s one of the most widely available collagen sources and tends to be more affordable.

Bovine collagen contains both Type I and Type III collagen, plus higher amounts of Type II collagen, which is associated more strongly with cartilage and joint health.

Common benefits of bovine collagen:

Supports joints, ligaments and muscles
Rich in glycine and proline (important for tissue repair)
May assist strength and athletic recovery
Often chosen for joint or performance support
Suitable for those with fish allergies

Because it’s a by-product of the beef industry, bovine collagen is more widely produced and generally lower cost.

Key Differences at a Glance

Marine Collagen

Best for:

Skin, hair and nails
Gut-friendly supplementation
Pescatarian diets
Sustainability-conscious shoppers
Main collagen type: Type I

Bovine Collagen

Best for:

Joint and connective tissue support
Muscle recovery
Athletic performance
Those with fish allergies
Budget-conscious shoppers
Main collagen types: Type I, II & III

How to Take Collagen

Both marine and bovine collagen are easy to add to everyday routines:

Coffee or tea
Smoothies
Warm water
Oats or yoghurt
Soups

Taste is usually neutral, and most hydrolysed collagens dissolve easily.

If you are interested in learning more about collagen and its benefits or would like to try it for yourself, pop in store and chat to our friendly staff who can direct you to our exciting range of both bovine and marine collagen peptides.