Which AHA peel is considered most suitable for sensitive skin?

Lactic Acid is considered the most suitable AHA peel for sensitive skin due to its gentler formulation and hydrating properties. As a naturally occurring alpha hydroxy acid derived from milk, lactic acid has a larger molecular structure compared to glycolic acid, which results in a slower penetration rate into the skin. This characteristic makes it less likely to cause irritation, making it an excellent choice for clients with sensitive skin.

Additionally, lactic acid offers both exfoliation and moisturizing benefits, helping to improve skin texture while simultaneously enhancing hydration. This dual action is particularly beneficial for sensitive skin types that may react negatively to harsher exfoliants.

In contrast, glycolic acid, while effective for exfoliation, is more potent and can lead to increased irritation in those with sensitive skin. Citric and malic acids, while also being AHAs, do not provide the same balance of gentleness and hydrating properties that lactic acid offers, making lactic acid the preferred option for sensitive skin.