This 3-in-1 serum uniquely pairs 0.1% encapsulated retinal–the most potent retinoid without an Rx–with ectoin for clinical results and zero irritation*. This patent-pending breakthrough targets fine lines, wrinkles, dark spots, and texture for smoother, brighter skin. Safe for even the most sensitive skin.*“Zero irritation” claim refers to a near 0% water loss to skin, post formulation application, as measured in a 4-week independent clinical study using a Tewameter, indicating virtually no skin-barrier disruption.**Before & after images from 3rd party consumer study