as the peel experts, philosophy not only discovered a way to gently reveal radiant skin, but also increase skin s resistance to signs of aging and extend its healthy look. the first two-step anti-aging peel combines the immediate micro-exfoliation of a peel with the restorative benefits of an overnight sleep mask to virtually eliminate the potential for irritation, for skin that appears healthier-looking longer. first, the alpha/beta hydroxy acid leave-on peel solution delivers exceptional resurfacing benefits gently throughout the night. next, our youth-extending night gel elevates this peel to a revolutionary level by enhancing the ability of new skin cells to resist visible signs of aging. proven to improve firmness and the look of wrinkles and pore size. dermatologist tested.