Understanding Melasma — And Why It's So Hard to Treat If you've been dealing with stubborn brown or grey-brown patches on your cheeks, forehead, upper lip, or chin, you're not alone. Melasma is one of the most common skin concerns we treat at Lumèr – Timeless Health Clinic, and it affects an estimated 1 in 4 women at some point in their lives — with rates significantly higher among those with medium to deeper skin tones. What makes melasma particularly frustrating is that it