Lactic Acid

Lactic Acid

8.0

Ingredient Info

Lactic acid is a mild chemical exfoliant that works by gently dissolving the bonds between dead skin cells on the surface, helping to slough them away. It's an alpha hydroxy acid (AHA) derived from milk fermentation and is gentler than stronger exfoliants, making it suitable for sensitive skin types.



Benefits

  • Gently exfoliates dead skin cells for a smoother texture
  • Improves skin radiance and brightness
  • Helps reduce the appearance of fine lines and uneven skin tone
  • Supports skin hydration by improving moisture absorption

Potential concerns

  • Can cause redness, stinging, or irritation, especially at higher concentrations or on sensitive skin
  • Increases sun sensitivity — daily SPF is essential when using
  • May irritate active acne or compromised skin barrier
  • Can cause dryness if overused or not followed with adequate moisturizer

Science: Lactic acid is widely recognized as an effective gentle exfoliant for improving skin texture and hydration. It has a longer history of safe topical use in dermatology compared to stronger AHAs, though it requires proper formulation (typically 5-12% for leave-on products) and concurrent sun protection to minimize irritation risk.



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