For the 1st time an exclusive study was carried out on the same women over 20 years to track the evolution of wrinkles with an accuracy and reliability never before achieved. After analysing skin behaviour, Vichy showed that there were 3 types of wrinkles: programmed, reversible and permanent. To help your skin combat the different types of wrinkles, Laboratoires Vichy combined Retinol, an anti-wrinkle ingredient that is effective within 2 months and Adenosine for efficacy that is higher than Retinol alone, and developed Retinol A. Enriched with Hyaluronic Acid, this treatment effectively acts on the different types of wrinkle in one. A rigorous selection of ingredients gives this treatment optimal tolerance. This treatment offers you a sensation of comfort every time you apply it and gives your skin a feeling of well-being throughout the day