Why Kligman's formula worsens melasma in dark skin types If you have a medium-dark or dark skin type and are treating melasma with the Kligman formula, or have been prescribed it, it's important to understand what actually happens to your skin during that t... Acido tranexamico Formula di Kligman Idrochinone Iperpigmentazione SPF melasma May 1, 2026