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Skin age estimates how old the skin looks or functions relative to chronological age. UV exposure is the biggest external factor, causing 80% of visible facial ageing. Smoking, sleep, and diet are also major contributors.
단계별 가이드
- 1UV exposure: +years (biggest modifiable factor)
- 2Smoking: +2-5 years · No moisturiser: +1-2 years
풀어진 예시
입력
Age 40 · High sun · Smoker · No moisturiser
결과
Skin age ≈ 50+
Multiple compounding factors
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