A dermatologist-developed treatment for hyperpigmentation, discoloration and dark spots., Helps promote turnover of damaged, pigmented skin., Features natural yet highly stable, medical-grade skin brighteners and botanical skin tone-enhancing ingredients., Scientifically formulated to work as both a lotion or treatment mask., To use as lotion: Apply a thin layer before moisturizer and sunscreen. Treatment mask: Apply directly to a clean face or after your retinoid or hydroquinone treatments. Leave on for 30-45 mins.