Vitamin A is a vital building block for body and skin. It is also an important carrier and stimulator for the skin. Vitamin A influences the collagen structure and the enzyme activity of aging skin. Especially the RETINOL used by KLAPP has a very positive effect on the skin’s reduced repair mechanisms. The professional RETIOL-TERMO treatment and the continued home care give the skin freshness and firmness. KLAPP A CLASSIC supports the skin’s own protection function. Mature facial features can be brought into a firm shape.