Vitamin A Serum 30ml from Prof. Dr. Steinkraus. Vitamin A
(retinol) is an excellently researched anti-ageing
active ingredient that should not be missing in any effective
care of skin with signs of ageing. It
effectively inhibits the enzymes that are responsible for breaking down the valuable
valuable collagen that gives the skin volume and elasticity.
volume and elasticity. To achieve optimal effects
Vitamin A must be used on a long-term basis.