Serum & Oil Sérum Pro-Collagen super-actif Serum Ref. 963 (4) 70.00 € Highly concentrated, this serum is designed to slow the breakdown of natural collagen and stimulate the synthesis of new collagen directly in the skin. Smoothed, tightened and firmed skin Inflates tissue at the emergence of wrinkles Specifically developed for combined action with Procollagene Super-Actif Cream Ref. 962 Add VIP VIP Club × To access the VIP Club, you must create an account.