When we think of ageing skin, the first signs that come to mind are fine lines, sagging cheeks, and wrinkles. But what’s really happening beneath the surface? The answer lies in one powerhouse protein — collagen.
What is Collagen?
Collagen is the most abundant protein in the human body. In fact, the word “collagen” comes from the Greek word kolla, meaning glue. It acts as the body’s natural scaffolding, found in your skin, bones, muscles, and tendons. It’s what gives skin its strength, bounce, and structure.
In your youth, collagen is produced freely and abundantly. That’s why baby skin looks so soft, plump, and resilient. But as we grow older, collagen production begins to decline.
By our mid-20s, we start losing about 1% of collagen every year. By the time we reach our 40s and 50s, the signs become more noticeable—wrinkles, fine lines, sagging, dullness, and even dryness start creeping in.
Ageing vs. Premature Ageing: What’s the Difference?
Let’s be honest: ageing is inevitable. It’s a natural biological process, not a flaw. With time, everyone sees signs like greying hair, slower metabolism, or thinner skin.
Premature ageing, however, is when those signs show up sooner than they should—often in your 20s or early 30s. And unlike natural ageing, this speed-up is often due to external or lifestyle-related factors. The good news? That means many of them are preventable.
Why Do We Lose Collagen Faster Than We Should?
Your lifestyle may be sabotaging your skin more than you realise. Here are some of the biggest collagen disruptors:
1. Excess Sun Exposure
UV rays break down collagen and prevent new collagen from forming. This accelerates the appearance of wrinkles, age spots, and sagging.
2. Smoking and Pollution
Both smoking and air pollutants generate free radicals that damage collagen fibers and inhibit their repair.
3. Poor Diet
Excess sugar, processed foods, and alcohol contribute to the glycation process—a reaction that makes collagen stiff and brittle.
4. Lack of Sleep & Stress
Chronic stress and insufficient sleep increase cortisol levels, which can reduce collagen production and repair.
5. Skincare Neglect
Not cleansing, moisturising, or using SPF regularly? That’s a direct invitation for faster collagen breakdown.
Healthy Habits That Help Preserve (and Boost) Collagen
The good news? Your skin isn’t helpless. Here’s what can help maintain collagen and improve elasticity over time:
1. Prioritise Sun Protection
Wearing sunscreen daily (yes, even indoors and on cloudy days!) protects collagen from UV damage. Look for broad-spectrum SPF 30 or higher.
2. Feed Your Skin from the Inside
Foods rich in vitamin C, zinc, amino acids, and antioxidants can help support collagen synthesis. Think berries, citrus, tomatoes, nuts, seeds, leafy greens.
3. Add Collagen-Boosting Ingredients to Your Skincare
Look for products that contain:
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Vitamin C – boosts natural collagen production and neutralises free radicals.
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Peptides – short chains of amino acids that act as building blocks of collagen.
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Retinoids – proven to promote collagen synthesis and cell turnover.
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Hyaluronic Acid – while it doesn't make collagen, it helps keep the skin hydrated and plump, enhancing collagen’s effect.
4. Consider Supplements (if needed)
Collagen peptide supplements have shown promising results in some studies mainly for skin hydration, particularly when combined with a healthy diet and skincare routine. Always consult your dermatologist before adding them.
5. Get Enough Sleep
Skin regenerates overnight. Aim for 7–8 hours of quality sleep to allow collagen repair and renewal.
6. Stay Active
Regular physical activity increases circulation, delivering more oxygen and nutrients (like those that build collagen) to your skin.
The Role of Collagen in Skin Elasticity
Collagen works hand-in-hand with another key protein: elastin. While collagen provides structure, elastin allows the skin to “snap back” into place after stretching.
As both decline, the skin loses firmness and becomes more fragile. You might notice deeper smile lines, crow’s feet, or sagging around the jawline. Supporting collagen health means improving elasticity, too, helping your skin look more supple and resilient.
Can We Reverse Collagen Loss?
You can’t completely reverse collagen loss, but you can slow it down and even stimulate production. With the right combination of lifestyle changes, skincare, and consistency, your skin can regain some of its bounce and firmness over time.
Don’t expect overnight miracles—collagen renewal is a slow process. But starting early and staying consistent will pay off in the long run.
A Word from Dr. Su
At Dr. Su, we believe in supporting your skin with a science-backed approach. Whether you’re looking to prevent premature ageing or revive your skin’s natural glow, collagen is a key player—and we’re here to help you make sense of it.
From nourishing skincare to everyday lifestyle tips, our goal is to empower you with information that’s practical, not overwhelming. Because healthy skin isn’t about looking flawless—it’s about understanding your skin’s unique needs and treating it with care.