Dermatologists agree: up to 80% of visible wrinkles and pigmentation is not age, but accumulated UV dose. This is photoaging.
Why UV Ages Skin
UVB works at the surface — burns and tan. UVA is more dangerous: it penetrates into the dermis, destroys collagen and elastin, causes persistent pigmentation and works even on cloudy days and through glass. So photoaging happens year-round, not just in summer.
Signs of Photoaging
- deep wrinkles and "leathery" texture;
- persistent pigmentation spots;
- loss of elasticity, dull complexion;
- spider veins.
How to Protect Yourself
- Daily SPF: at index 3+ — SPF 30–50 on face every morning, even in clouds (check current UV index);
- UVA labeling: look for PA++++ or the circled UVA logo — UVA is the aging culprit;
- UV400 sunglasses — protect delicate eyelid skin and prevent crow's feet from squinting;
- Antioxidants — vitamin C and niacinamide in skincare boost SPF protection.
Bottom Line
The cheapest and most effective anti-aging product is sunscreen matched to the current UV index. Start by checking your city: London, New York, Berlin.