Lactic acid is an alpha hydroxy acid (AHA) derived from milk. It gently exfoliates the skin, improves texture, brightens dark spots, hydrates, and smooths fine lines, making it ideal for sensitive or dry skin.
Yes, lactic acid is generally safe and well-tolerated, especially for sensitive, dry, or mature skin. It provides mild exfoliation while keeping the skin hydrated, making it less likely to cause irritation compared to stronger acids.
For mild formulations, it can be used 2-3 times per week, while higher concentrations in medical-grade treatments should be done every 4-6 weeks under professional supervision.