Why Some People Age Slower: The Science of Skin Longevity
Ever wondered how some people seem to age in slow motion, while others feel like their skin changed overnight? We get it—and no, it’s not all just “good genes.” While genetics do play a role, there’s a lot more at work when it comes to skin ageing—and the great news is, much of it is within your control.
From the age of 25, collagen—the protein that keeps your skin smooth, firm, and youthful—starts to decline. By our late 20s or early 30s, that once-plump complexion starts showing the first signs of change. Fine lines, dullness, and loss of bounce quietly move in.
For women especially, this process can be more noticeable. We naturally lose collagen faster than men, who benefit from thicker skin and higher testosterone levels which boosts skin health (lucky them). But science is on our side—and we’re more empowered than ever to take ageing into our own hands.
The Science of Skin Ageing: What’s Really Going On?
Let’s break it down. Skin ageing is a combination of intrinsic factors (like your genetics) and extrinsic factors (like sun exposure, diet, and stress). While we can’t change our DNA, we can absolutely influence how we age by managing those lifestyle factors.
One of the biggest changes is the drop in collagen production. Collagen is what gives your skin its firmness and bounce, but starting in your mid-20s, it decreases by about 1% each year. Combine that with elastin loss (which affects flexibility) and slower cell turnover, and you’ve got a perfect storm for fine lines, sagging, and uneven tone.
And then come the environmental aggressors—pollution, UV rays, oxidative stress. These external factors damage skin cells, speed up collagen breakdown, and lead to premature ageing.
Why Do Some People Age Slower Than Others?
Let’s not sugarcoat it—genetics play a role. You probably know someone who seems to have inherited a fountain of youth from their parents. But the good news is, lifestyle choices can be just as impactful—if not more so—when it comes to long-term skin health.
Here’s how to take control and give your skin the best shot at ageing beautifully.
UV Exposure: Your Skin’s Worst Enemy
If there’s one thing that accelerates ageing faster than anything else, it’s sun exposure.
UV rays damage skin cells at the DNA level, breaking down collagen and elastin and triggering pigmentation. The result? Fine lines, sagging, uneven skin tone—and over time, the potential for more serious concerns like skin cancer.
Wearing SPF 50+ daily (yes, even in winter or on cloudy days) is the single most effective way to slow down visible ageing. Make it a habit, and your skin will thank you for decades to come.
Hydration: More Important Than You Think
Hydration isn’t just about drinking water—it’s about giving your skin what it needs to maintain elasticity, glow, and resilience.
Your skin barrier relies on internal and external hydration. Without it, you’re more prone to dryness, flakiness, and inflammation. Aim for at least 2.5 litres of water daily for women and 3 litres for men—and no, fizzy drinks and coffees don’t count.
Pair this with a great topical moisturiser and a hyaluronic acid serum, and you’ve got the perfect recipe for juicy, healthy skin.
Nutrition: Beauty Starts From Within
Your diet directly impacts your skin’s ability to heal, regenerate, and glow.
Processed foods, refined sugars, and excess dairy can lead to inflammation and glycation—a process where sugar molecules attach to collagen and weaken its structure. The result? Stiffer, more fragile skin that’s quicker to wrinkle.
Instead, fuel your skin with antioxidant-rich fruits and vegetables, healthy fats like omega-3s (found in salmon and walnuts), and collagen-boosting nutrients like Vitamin C, zinc, and amino acids.
Sleep: Your Nightly Skin Reset
Sleep isn’t just about rest—it’s when your body enters repair mode, especially your skin.
During deep sleep, the body increases blood flow to the skin, repairs UV damage, and produces new collagen. If you’re regularly clocking less than 7 hours, your cortisol (stress hormone) levels remain elevated, which accelerates collagen breakdown and leads to a dull, tired complexion.
Prioritise 7–9 hours of quality sleep per night and create an evening routine that helps your body wind down—your skin will glow for it.
Are You Ageing Your Skin Without Realising It?
Even the most well-meaning routines can cause harm. Here are a few everyday habits that could be working against you:
- Rubbing your eyes – The delicate under-eye skin is prone to wrinkling and loosening.
- Dirty pillowcases – Bacteria, oil, and dead skin cells build up quickly. Wash weekly; switch to silk if possible.
- Skipping water – Most Brits are chronically dehydrated, and it shows first in the skin.
- Ultra-processed diets – High in sugar, low in nutrients. Swap in whole, nutrient-dense foods where you can.
The Treatments Changing the Game
Science may explain how we age—but technology is rewriting the rules. Aesthetic treatments are now more advanced, natural-looking, and accessible than ever before.
- Microneedling creates controlled micro-injuries to stimulate natural collagen production.
- Radiofrequency & Ultrasound treatments firm and lift the skin by heating tissue below the surface.
- Red Light Therapy supports cell turnover, reduces inflammation, and encourages skin regeneration.
- Skin Boosters can help stimulate your skin’s ability to make new collagen which then improves the snap-back and glow of your skin
- Injectables like anti-wrinkle and dermal fillers now offer subtle, preventative results that blend seamlessly with your natural features.
These aren’t about changing how you look—they’re about helping you look like the best version of yourself for longer.
The Bottom Line
Ageing is natural, but you have more power than you think when it comes to how it shows up on your skin. With the right care, modern treatments, and a few healthy habits, your skin can stay firmer, smoother, and brighter for years to come.
You don’t need perfect genes to look incredible—just a little consistency, a dose of science, and the right treatments to give your skin the boost it deserves.
Time for a professional medical opinion on your ageing concerns? Contact Look Lovely London today to book your consultation or treatment appointment. To make an appointment, please book online or call 020 3900 2756 and we can help devise a personalised treatment plan just for you.
