A moderate-strength retinol serum that targets general signs of skin aging. Retinol 0.5% in Squalane offers a water-free solution containing 0.5% retinol - an ingredient that improves the appearance of fine lines that can arise from a loss of collagen and elastin, while evening the appearance of skin texture and tone. What's more, this intermediate formulation is supported with squalane, a moisturizing agent naturally found in your skin that nourishes to help it better withstand the drying effects of retinol.