The Indian "melanin shield" advantage
Fitzpatrick III–V melanin absorbs UV radiation, providing natural SPF 10–15 equivalent protection at baseline. This is why Indian skin typically shows visible photoageing 5–10 years later than Fitzpatrick I–II equivalents. But this advantage is entirely negated without applied sunscreen, and the PIH cascade from UV exposure in darker skin creates a different — and often worse — ageing pattern: uneven pigmentation, acne scarring darkening, and melasma.