The lactic acid is present here as an 80% aqueous solution. The pH value is below 1.8. The organic acid belongs to the group of alpha hydroxy acids (AHAs), which are widely used as active ingredients in fruit acid peels.
 
However, lactic acid is mainly used to regulate the pH value and as a humectant. Lactic acid also occurs in the skin's hydrolipid film. There it binds moisture and stabilizes the pH value of the skin's own acid mantle. To protect it, a care emulsion should be pH-neutral. This means that the emulsions are adjusted to a pH of 5.0-5.5, which is also slightly acidic. In addition, some preservatives, such as Rokonsal BSB-N or Dermosoft 1388 ECO, are only effective at a pH below 5.5.

Please remember that adjusting the pH value completes the manufacture of the skin care product. Please be careful with the dosage and add the lactic acid to the emulsion drop by drop to adjust the pH value. Please wear safety goggles.
 
Application concentration:
0.5-1% as an active ingredient in care products; in higher concentrations, lactic acid can irritate the skin.