Collagen Over 40: What You Really Need to Know About Skin, Joints, and Aging Support

If you’ve noticed your skin becoming thinner, your joints feeling stiffer, or your hair and nails losing strength, you’re not imagining it — and you’re not alone.

As we move through our 40s and beyond, our bodies naturally begin to produce less collagen — a key protein that holds everything from skin to joints together. And with hormonal changes like perimenopause and menopause in the mix, the signs of collagen loss can become even more pronounced.

In this post, we’re breaking down:

  • What collagen is and how it affects your skin, joints, and more

  • Why women over 40 lose collagen faster (hint: hormones!)

  • Whether collagen supplements actually work — based on the latest science

  • The nutrients your body must have to make collagen effectively

  • How to support collagen naturally through diet and lifestyle

Whether you’re considering supplements or just want to age as healthily as possible, this guide is for you.

What Is Collagen — and Why Does It Decline as We Age?

Collagen is the most abundant protein in the human body, making up around 30% of total protein content. It’s a major structural component of:

  • Skin

  • Hair

  • Nails

  • Joints and cartilage

  • Tendons and ligaments

  • Bones and blood vessels

Think of collagen as the scaffolding that keeps your body firm, flexible, and resilient.

The Types That Matter Most:

  • Type I & III – Found in skin, hair, nails, and bones

  • Type II – Found in cartilage and joint structures

From your mid-20s onward, collagen production starts to decline by 1% per year — but that process accelerates after age 40, particularly for women going through menopause. Falling estrogen levels have been shown to directly impact skin collagen content, leading to:

  • Thinner, drier skin

  • Fine lines and wrinkles

  • Reduced skin elasticity

  • Joint aches and slower recovery from physical activity

In fact, some studies suggest women can lose up to 30% of skin collagen in the first five years after menopause.

Signs of Collagen Loss in Your 40s and 50s

🟣 Joint stiffness or discomfort
🟣 Loss of skin bounce and hydration
🟣 Thinning or crepey skin
🟣 Brittle nails or hair breakage
🟣 Slower wound healing
🟣 More visible fine lines or sagging skin

Collagen Production Needs More Than Just Protein

Collagen is one of several natural supplements for women over 40 that support joints, skin, and connective tissue.

Your body can make collagen — but only if it has the right building blocks and cofactors.

Essential Collagen Nutrients:

  • Glycine, proline, hydroxyproline: Key amino acids found in collagen-rich foods like skin, bones, and connective tissue — not typically in muscle meats.

  • Vitamin C: Absolutely vital for collagen synthesis. Without it, your body can’t form stable collagen fibers.

  • Zinc and copper: Support enzymes that cross-link and stabilize collagen molecules.

👉 If you’re taking a collagen supplement without vitamin C or have low levels due to stress or poor diet, you may not be getting the full benefit.

Do Collagen Supplements Work?

💡 Prefer to watch instead? I break all of this down in my video:

Let’s look at the evidence.

Skin Health

Multiple clinical studies have shown that hydrolyzed collagen peptides can:

  • Improve skin hydration

  • Increase elasticity

  • Reduce wrinkle depth

One double-blind, placebo-controlled trial found improvements in skin elasticity within 8 weeks of daily collagen use. A 2021 meta-analysis reviewing over 2,700 participants confirmed significant effects on hydration and elasticity.

👉 For perimenopausal and menopausal women, this may help counteract the collagen loss driven by hormonal changes.

Joint Support

Type II collagen may support:

  • Reduced joint stiffness

  • Increased mobility

  • Less discomfort during daily movement

One study found improvements in knee osteoarthritis symptoms within 4 weeks of taking undenatured type II collagen.

Other Potential Benefits

There’s also emerging evidence for:

  • Faster wound healing

  • Better bone mineral density (especially in postmenopausal women)

  • Improved nail strength and reduced brittleness

⏳ But here’s the caveat: results are gradual. You’re not likely to see overnight transformation. Most studies show results between 8–12 weeks, and individual response varies.

What to Look for in a Collagen Supplement (If You Choose to Use One)

Not all collagen supplements are created equal. If you’re investing in one, here’s what matters:

✅ Hydrolyzed collagen peptides
These are broken down for easier absorption. Research shows over 60% of these peptides are absorbed and can raise levels of hydroxyproline (a marker of collagen synthesis).

✅ Type I & III for skin/hair/nails, Type II for joints
Some blends contain all three, but check your label.

✅ Third-party testing
Collagen comes from animal sources. Choose brands that screen for heavy metals, pesticides, and contaminants.

✅ Take with vitamin C, zinc, and copper
You can get these through food or a separate supplement, but don’t skip them — they’re essential for collagen to form properly.

✅ Consistency is key
Aim for 8–12 weeks minimum to assess effects. Some people see changes sooner, others may notice subtle shifts over time.

Can You Get Collagen from Food?

Yes — and for many people, this is a great first step.

Top Collagen-Rich Foods:

  • Bone broth (slow-cooked chicken or beef bones)

  • Fish skin

  • Chicken with the skin on

  • Gelatin (from powdered or natural sources)

  • Oxtail, skin-on pork, and connective tissues

These foods are rich in glycine, proline, and collagen — especially when slow-cooked or pressure-cooked to extract nutrients.

Pair these with vitamin C-rich produce (like bell peppers, citrus, berries, and leafy greens) to support natural collagen synthesis.

What about vegan collagen?

True collagen is animal-derived, so vegan versions don’t contain collagen itself. However, they may provide:

  • Glycine, proline (from plant sources)

  • Vitamin C and other cofactors

Some brands also use fermentation technology to create collagen-like peptides from bacteria or yeast. These are still in early development but could offer promising options for vegans and vegetarians in the near future.

Final Thoughts: Supporting Collagen as You Age

Collagen isn’t just about beauty — it’s about resilience.

As we age, we need all the support we can get to maintain healthy:

  • Skin elasticity

  • Joint function

  • Hair and nail strength

  • Tissue healing and recovery

Whether you choose to supplement or not, supporting collagen should be part of a long-term strategy to age well.

Here’s What You Can Do Starting Today:

✅ Eat collagen-rich or supportive foods
✅ Prioritise vitamin C, zinc, and copper
✅ Minimise sugar, alcohol, and stress
✅ Wear sunscreen daily
✅ Add resistance training to your routine
✅ Consider a hydrolyzed collagen peptide if appropriate

Other posts you may like:

Vitamin D Benefits for Women: What You Need to Know – Click HERE

Creatine for Women: Benefits, How It Works & Why It Matters – Click HERE

Apple Cider Vinegar Before Bed – Does It Really Work? The Science-Backed Benefits You Should Know – Click HERE

Self Sabotaging Weight Loss – Click HERE

How Much Protein Do I Need To Lose Weight – Click HERE

References: 

https://pmc.ncbi.nlm.nih.gov/articles/PMC8620403/ A Review of the Effects of Collagen Treatment in Clinical Studies  

https://pubmed.ncbi.nlm.nih.gov/23949208/ Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study  

https://www.sciencedirect.com/science/article/pii/S1756464624004134 Skin health functionality evaluation of collagen peptide with the application of meta analytical approach 

https://pmc.ncbi.nlm.nih.gov/articles/PMC9780623/   Efficacy and safety of native type II collagen in modulating knee osteoarthritis symptoms: a randomised, double-blind, placebo-controlled trial 

https://pubmed.ncbi.nlm.nih.gov/25826015/  Bioavailability and bioavailable forms of collagen after oral administration to rats  

https://collagenalliance.org/collagen-science-update-april-2024-edition/ Collagen Science Update – April 2024 Edition