GC | Timexpert Firmness & Vitality SerumFormulated with P. I. T. (Phase Inversion Temperature) technology, this serum is a true icon in combating the most complex skin issue: sagging. It combines lightness and silky touch with protective emollience that strengthens the skin barrier. Enriched with high molecular weight hyaluronic acid, it intensely hydrates the skin and prevents dehydration. Formulated with a multifunctional ingredient extracted from red algae from Brittany and natural