The new philosophy multi-rejuvenating face u0026 neck firming cream delivers the clinical strength of pure retinol you donu0027t need to build up to, with no irritation. we address the 4 signs of aging which are gradual decline of collagen and elastin fibers, dryness and dullness. this nourishing philosophy cream smooths fine lines and wrinkles, and revitalizes your skin. over 94% agree skin is firmer and skins texture is improved* *based on an 8-week consumer study with 101 (91) women aged 40-65 with 2x/day application.To use: apply philosophy cream all over face and neck. use morning and evening.philosophys skincare formulas deliver immediate and sustained positive impact on the skin by including the optimal balance of high-performance actives, skin-replenishing and biocompatible ingredients in respect of skins natural functions. philosophy favours green chemistry, relying as much as possible on biotechnology, high-quality synthetics and responsibly sourced natural ingredients to minimize their impact on nature.