We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com. Hyperpigmentation, including melasma, is often difficult ...

Hyperpigmentation is one of the most common—and most frustrating—skin concerns people face. Whether it shows up as dark spots, uneven tone, melasma, or post-acne marks, pigmentation tends to linger ...