SYTENOL A is the first natural alternative to Retinol without having any of the negatives associated with Retinol; Photochemically & hydrolytically stable; Can be used during the day; Multiple comparative studies revealed Sytenol A to be a true alternative to retinol. Modulates retinoid-binding & metabolizing genes; Significantly improves multiple dermal & dermo-epidermal junction genes/proteins; Collagen I, III & IV stimulator; Provides hydration by up-regulating synthesis of hyaluronic acid & aquaporin 3; Clinically proven to reduce multiple signs of aging - Significant reduction in roughness & dryness; fine lines & wrinkles and improvement in skin tone, elasticity & firmness; radiance and brightness. SYTENOL A is a natural and well-defined material with a purity level of ≥ 90%..