What type of acid is gentle enough for sensitive skin but effective for acne treatment?

Lactic acid is a gentle alpha hydroxy acid (AHA) known for its ability to exfoliate the skin without being overly harsh, making it suitable for sensitive skin types. This acid helps to improve skin texture and is effective in treating acne by promoting cell turnover and helping to unclog pores. Its hydrating properties also help soothe the skin, making it less likely to cause irritation compared to stronger acids.

In contrast to other options, lactic acid stands out for its mildness, thereby allowing individuals with sensitive skin to benefit from its effects without significant adverse reactions. Glycolic acid, while effective for acne, is typically considered stronger and can be irritating. Salicylic acid is effective in treating acne, specifically by penetrating into the pores, but it may not be suitable for all sensitive skin types. Hyaluronic acid is primarily a hydrating agent and does not have the same exfoliating or acne-treating properties as lactic acid.