Powerful biphasic facial serum to enhance the skin's natural renewal during the night. Biphasic Night Serum for Firming & Smoothing Powerful biphasic facial serum to enhance the skin 's natural renewal during the night. Enhanced with a natural alternative ingredient to glycolic acid, it offers velvety, firm and visibly brighter skin the next morning. Reinforced with:• Blackpine : Enriched with polyphenols, it tightens the skin and reduces the appearance of wrinkles. • Plant - Derived Glycolic Acid : A plant-derived ingredient alternative to glycolic acid that smoothes the skin and reduces the appearance of pores, fine lines and wrinkles. • Amino acid complex with copper : Reduces the appearance of wrinkles and provides firm skin. • Apply to clean skin, avoiding the eye area.