Polyhydroxy Acids (PHA)
The next generation of hydroxy acids. These naturally occurring, low-irritating acids enhance exfoliation of stratum corneum (the outermost layer of the skin). A significant advantage of PHA is the fact that their large molecular size allows slower topical penetration. Thus, these acids can be used for the exfoliation of sensitive skin without side effects. Zelens uses lactobionic acid which has strong hydrating properties: by binding atmospheric water lactobionic acid is forming a natural gel-film that gives hydration, plumpness and smoothness to the skin. Lactobionic acid demonstrates excellent antioxidant properties and helps prevent skin damage caused by free radicals and oxidative stress. It also has chelating capacity to effectively remove excess dangerous metal molecules.

Alpha Hydroxy Acids (AHA)
AHA accelerate skin renewal by gentle exfoliation of stratum corneum. Zelens uses lactic acid (produced by fermentation of sugar and citric acid (derived from citrus fruits).

Beta Hydroxy Acids (BHA)
Salicylic acid: Gently exfoliates the skin and promotes skin renewal. Effectively clear the pores of debris preventing them from clogging up. Due to its strong anti-inflammatory and anti-bacterial properties salicylic acid is used in the treatment of oily, acneic and/or blemished skin.

Full list of ingredients
Aqua (Water), Alcohol Denat., Propylene Glycol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Glycerin, Sodium Lactate, Salicylic Acid, Lactobionic Acid, Citric Acid, Lactic Acid, Parfum (Fragrance), Disodium EDTA, Linalool.