Why does the calculator weight childhood sun exposure so heavily?

Early UV exposure causes DNA mutations in skin cells that don't repair completely. These accumulate silently and contribute to photoaging decades later. Dermatologists consider childhood sun protection critical because the damage appears late but the mechanism starts early.

What does Skin UV Age mean?

Skin UV Age is the estimated biological age of your skin's surface layer, reflecting cumulative UV exposure adjusted for skin type, geography, outdoor habits, sunscreen use, and the amplified damage from sunburns and tanning beds.

Can I reverse photoaging?

UV damage at the DNA level can't be reversed. But collagen, surface texture, and pigmentation respond to retinoids, antioxidants, and professional treatments. Most importantly, consistent SPF 50 now prevents new damage from adding to the total — which is what the Preventable Years figure represents.

Why is my Skin UV Age higher than expected?

Most people underestimate their lifetime UV dose. Thousands of hours spent commuting, gardening, or walking without sunscreen add up. UV accumulates in daily doses, not just on beach holidays.