MILCHSÄURE

Lactic Acid, also known as milk acid, acts as a natural humectant or as an alpha-hydroxy acid (AHA) depending on the concentration used, gently exfoliating the skin and providing moisture. Lactic acid also stimulates ceramide biosynthesis and improves the skin barrier function. By stimulating ceramide synthesis, the content of ceramides in the skin is increased, which strengthens the skin barrier and improves the structural integrity of the skin.(1-4)

(1) Barel A.O., Paye M.,Maibach H.I. (Eds.). (2010). Handbuch der kosmetischen Wissenschaft und Technologie (3. Aufl.). CRC Press.  

(2) Martinez F., Balciunas E., Salgado J., González J., Converti A.,Oliveira R. (2013). Lactic acid properties, applications and production: A review. Trends in Food Science and Technology, 30, 70-83.

(3) Smith W. (1996). Epidermal and dermal effects of topical lactic acid. Journal of the American Academy of Dermatology, 35, 3(1), 388-391.

(4) Mijaljica D., Townley JP.,Hondros A., Hewson C., Harrison IP., Spada F. (2024). Considering Phytosphingosine-Based Ceramide Formulations for Atopic Skin Care. Dermato., 4(1), 5-22.

(5) Rawlings AV, Davies A, Carlomusto M, Pillai S, Zhang K, Kosturko R, Verdejo P, Feinberg C, Nguyen L, Chandar P. (1996). Effect of lactic acid isomers on keratinocyte ceramide synthesis, stratum corneum lipid levels and stratum corneum barrier function. Arch Dermatol Res., 288(7), 383-390.