Karin Herzog: Vita-A-Kombi Face Treatments
Retinoid acid is used to combat the signs of damaged and aging skin. However retinoid acid generally has some downsides associated with its benefits, its generally harsh and drying.
Karin Herzog uses oxygen to facilitate the acidification of Vitamin A into retinol, through a patented process which took 40 years to develop. The use of oxygen to create the retinoid acid helps alleviate the negative aspects, while keeping the positive.