PCA SKIN Resurfacing Serum a unique formula that helps to improve skin tone, texture, and clarity without the typical irritation of exfoliating products. The slow-release glycolic arginine complex and hydrolyzed prickly pear flower extract help dull skin appear even and smooth without irritation. Licorice root extract provides natural brightening benefits, while reducing build-up of dead surface cells leaves skin radiant, smooth, and clear. Gentle enough for all skin types, including sensitive.