When it comes to ageing well, collagen isn’t just a beauty trend—it’s a building block. After 40, collagen production declines sharply, which can lead to visible signs of skin ageing, joint stiffness, loss of bone mass and slower recovery.

That’s why many women in midlife are turning to collagen supplements. But not all collagen is created equal. Two of the most popular forms—marine and bovine—offer distinct benefits. Understanding the science can help you choose what’s right for you.

What is collagen, and why does it matter now? 

Collagen is the most abundant protein in your body. It’s made up of three key amino acids—glycine, proline, and hydroxyproline—and forms the structural foundation for skin, bones, ligaments, and connective tissue.

There are several types of collagen, but Type I and Type III are most relevant to midlife health:

Type I is found in skin, hair, and nails—marine collagen is rich in this type.

Type III supports the structure of organs and skin, and is present in bovine collagen.

Why marine collagen?

Sourced from the skin and scales of fish, marine collagen has a lower molecular weight, making it more bioavailable - meaning your body absorbs and uses it more efficiently.

• 💧 Clinical studies on VERISOL® marine collagen peptides have shown:
• A 20% reduction in eye wrinkle volume after just 8 weeks
• A 65% increase in pro-collagen production in skin
• Improved skin elasticity and hydration 

\[Study: Proksch E. et al.,  Skin Pharmacol Physiol , 2014]

For women experiencing the collagen loss that accompanies perimenopause and menopause, this fast-absorbing, skin-targeted support can make a visible difference.

Why bovine collagen?

Bovine collagen is sourced from cows and includes both Type I and Type III collagen. It offers more structural variety and has broader benefits for joints, bones, gut lining, and connective tissues.

Our choice? FORTIBONE®, a clinically studied bovine collagen peptide shown to:

• Improve bone density and bone strength 
• Stimulate osteoblast activity (bone-building cells)
• Support postmenopausal bone health 

\[Study: König D. et al., Nutrients , 2018]

This makes bovine collagen especially relevant for women in their 40s and 50s looking to stay active, strong, and supported from the inside out.

Why not choose both? 

At  Eir Women, we combine VERISOL® marine collagen and FORTIBONE® bovine collagen in our product Revival because midlife women need more than a one-size-fits-all solution. You need skin elasticity and bone resilience. Glow and  strength.

Our approach is science-led and life-aware—designed for real women navigating real changes, with no time for fluff or fillers.

What to consider when choosing collagen:

For visible skin benefits → Marine (VERISOL®) 

For joint and bone support → Bovine (FORTIBONE®) 

Want both? → Choose a dual formula that works as hard as you do

Feel like yourself again—only stronger. 

With the right support, midlife doesn’t have to mean fading—it can mean rising.

Backed by clinical science. Built for busy women.