Lactic acid crystals - How do they work?
The product is a so-called biostimulant. The lactic acid crystals stimulate the body’s own collagen production in the deep layers of the skin. This happens when the product causes inflammatory reactions in the skin, which triggers collagen formation and tightens the connective tissue.
Lactic acid crystals - The way to rebuild the body's own collagen
The advantages of the injections are great, because poly-lactic acid has hardly any side effects and is completely broken down by the body. Small and even deep wrinkles as well as certain scars and sagging cheeks can be filled with the lactic acid crystals and smoothed for up to two years with just two treatments.