Sunshine feels good, and a little of it does the body real favours. It lifts your mood, helps regulate your sleep rhythm, and supports vitamin D production. But when it comes to the collagen that keeps your skin firm and springy, the sun plays a more complicated role.
Dermatologists estimate that the majority of visible skin ageing comes down to sun exposure rather than the passing of years, which is a striking thought when you consider how much attention we give to birthdays and how little we give to shade. The good news is that this is one of the most controllable factors in how your skin ages.
Understanding what happens to collagen under the sun, and how to support your skin from the inside as well as the outside, puts a lot of power back in your hands. Supporting collagen from within is exactly where a formula like Vital Beauty earns its place, and we will come back to that. First, the science.
What Collagen Actually Does
Collagen is the most abundant protein in the body and the main structural component of your skin. Think of it as scaffolding. It forms a dense network in the dermis, the deeper layer of skin, and gives that layer its strength, thickness, and ability to bounce back when pressed.
Alongside collagen sits elastin, which lets skin stretch and recoil, and hyaluronic acid, which holds water and keeps everything plump. When this support network is intact, skin looks smooth and firm. When it starts to break down, the surface above it loses support, and that is when fine lines, sagging, and a crepey texture begin to show.
Your body makes collagen throughout life, but production naturally slows from around the age of 25. That gradual decline is normal. What accelerates it dramatically is damage from outside, and sunlight is the biggest external culprit.
How Sunlight Breaks Collagen Down
Sunlight reaches your skin as ultraviolet radiation, split mainly into UVA and UVB. UVB affects the surface and causes visible burning. UVA penetrates deeper, right down into the dermis where your collagen lives, and this is where the structural damage happens.
The process works in two connected ways. First, UV exposure generates unstable molecules called free radicals, which damage collagen fibres directly and degrade their quality. Second, and more significantly, UV light switches on enzymes known as matrix metalloproteinases, or MMPs. These enzymes act like molecular scissors, cutting existing collagen into fragments.
A single afternoon in strong sun can trigger a burst of this enzyme activity. The occasional episode is something skin can repair. The problem is repetition. Repeated exposure means collagen is being broken down faster than the body rebuilds it, and the repair process itself becomes less tidy over time, leaving disorganised fibres that never quite restore the original structure.
Why the Damage Adds Up
The term dermatologists use for sun-driven skin ageing is photoageing, and its signature is easy to spot once you know what to look for. Deep wrinkles, a leathery texture, uneven pigmentation, and visible small blood vessels are all hallmarks of accumulated UV exposure rather than age alone.
You can see the effect clearly by comparing skin that gets constant sun, like the face and the backs of the hands, with skin that stays covered, like the upper arms or torso. The difference in firmness and texture between these areas on the same person is almost entirely down to light exposure.
This is also why protection is never wasted effort. Every episode of unprotected exposure you avoid is collagen you keep. Skin has a genuine capacity to recover when the assault stops, so it is never too late to change the trajectory.
Protecting Collagen From the Outside
The most effective thing you can do is limit how much UV reaches your skin in the first place. None of it is complicated:
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Wear a broad-spectrum sunscreen daily, since UVA passes through cloud and glass and reaches you even when it does not feel bright.
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Seek shade during the hours when the sun sits highest and its rays are strongest.
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Use physical barriers like hats, sunglasses, and long sleeves, which protect without needing reapplication.
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Reapply sunscreen after swimming or sweating, because a morning application does not last all day.
These habits protect the collagen you already have. But defending your existing scaffolding is only half the picture. The other half is giving your body what it needs to keep building new collagen, and that is where nutrition comes in.
Supporting Collagen From Within
Collagen production is a manufacturing process, and like any manufacturing process it depends on raw materials. Your body assembles collagen from amino acids, and it cannot complete the job without certain helper nutrients. Vitamin C, for example, is essential for the chemical step that makes collagen stable and functional, which is one reason a diet lacking it shows up so quickly in the skin.
This is the logic behind taking collagen peptides. Hydrolysed collagen is broken into small fragments that are easy to absorb, delivering the specific amino acids your body uses as building blocks. Pairing those peptides with supportive nutrients gives the whole process a better chance of keeping pace with everyday wear, including the demands that sun exposure places on your skin.
Antioxidant nutrients play a parallel role by helping to neutralise the free radicals that UV light generates, which supports skin health from a different angle.
Nutrition works best as a daily habit rather than a one-off. Collagen turnover happens gradually, so the benefit comes from consistent support over weeks, giving your skin a steady supply of what it needs to repair and rebuild.
Vital Beauty: Building Blocks in Every Scoop
Vital Beauty is built for exactly this job. At its core is hydrolysed collagen from grass-fed cattle, broken down for easy absorption so the amino acids reach your body ready to use.
It is paired with Nicotinamide Riboside and a small supporting cast that includes hyaluronic acid, so you are getting collagen building blocks and complementary nutrients in one daily scoop.
Because collagen is heat-sensitive, keep it cool: mix one scoop into water, a smoothie, or any cold drink you enjoy, and it tastes just as good either way. Vital Beauty slots into your routine in seconds and works quietly in the background while you get on with protecting your skin from the sun.
