Glycolic resurfacing by PHYT’S. A natural way to smooth and renew the skin during the winter months. It is the perfect time of year to rapidly exfoliate the skin. Days are short so UV light will be less likely to effect your skin smoothing and pigmentation reducing results. SPF is however an absolute must during your time of usage of the Duo Kit moisturisers. Although the effect of the products is one of skin perfection, you must not forget: glycolic acid chemically alters our skin so we sloth more cells off. In doing so, the skins natural protective function is compromised. This allows UV, wind and heat damage to take effect more easily. The biggest warning for PHYT’Skin Rénov: IT PRODUCES HIGHLY ADDICTIVE RESULTS!!!!!!