AHA vs BHA: how to choose the right acid for your skin type

Choosing between AHA and BHA acids often leads to confusion, which can result in using products that are either ineffective or too aggressive for a specific skin type. The outcome depends on understanding how different acid groups function: some refine the skin's surface, while others penetrate pores to address congestion. AHA Acids for Texture and Tone Alpha Hydroxy Acids (AHA), including glycolic, lactic, and mandelic acids, are water-soluble compounds that act on the upper layer of the epidermis. They work by breaking the bonds between dead skin cells to encourage renewal. This group is typically used to address dullness, fine lines, and pigmentation. Alina Chernova, a cosmetics ingredients expert, told Pravda.Ru that glycolic acid has the smallest molecule, allowing it to penetrate deeper and create a visible glow. However, she suggests that beginners start with lactic or mandelic acids, as they are gentler and reduce the risk of irritation.