This functional hydrator contains encapsulated retinol, powerful antioxidants and an anti-inflammatory agent to calm, replenish, rejuvenate, and repair the skin moisture barrier. (50 mL, 1.7 Fl. Oz.) With retinol it takes the skin 2-3 months to get use to this active ingredient. During this time it is normal to experience redness, dryness, peeling and purging of the skin. This is all part of the retinol process. Do not use retinol if pregnant or breastfeeding. For first time users, we often recommend a consult first.