AHAs stands for Alpha-hydroxy acids. These are water soluble acids coming from fruit, milk and sugar cane. Today, they are often created in a lab. They are grouped by their common structure.
Alpha-hydroxy acids can remove outer layer of dead skin cells and reveal the fresh new skin underneath it. They can also help to even the skin tone.
Glycolic acid is the most popular and most researched AHAs. Other AHAs used in cosmetic industry are Lactic, Kojic, Mandelic, Citric, Malic and Tartaric acids.
- AHAs can speed up skin cell renewal, making the skin look younger!
- AHAs are better for dry skin while BHAs fit to oily acne-prone skin with clogged pores.
- The word acid says for itself – it might feel a bit burning on the skin which is ok, otherwise it would not work. So the sourer you AHA product is, the faster you get the effect. But do not let yourself suffer and try other products if the reaction is strong.
- To find out how sour or acidic the actual product is, check if the product label includes information about its the pH-level. Low pH, like 2-3, means very acidic and more irritating, and higher pH, e.g. 5-6, means less acid.
- Check AHA percentage in the product. Products with higher percentage are generally more effective, but products with lower percentage are gentler to your skin. We recommend starting between 4 and 10%.
- After you used AHAs the skin is “uncovered” and more vulnerable to the sun. Use sunscreen daily if you are using AHAs, even on the following days.
Some AHA containing products might cause irritation. Starting with products having lower AHA concentration or higher pH can help to avoid it.