Lactic acid is an alpha-hydroxy acid (AHA) known for its gentle exfoliating and moisturising properties. Here is more information about its action, contraindications, and how to use it.
Lactic acid is generally better tolerated than glycolic acid because its molecular size is larger (90.08 g/mol for lactic acid versus 76.05 g/mol for glycolic acid).
Is lactic acid hydrating?
In addition to its exfoliating effects, lactic acid helps to maintain skin hydration by attracting and retaining water on the surface of the epidermis.
Can lactic acid cause irritations?
Even though it is generally mild, thelactic acid can cause irritations when used excessively or at too high a concentration.
Can sensitive skin types use lactic acid?
Thelactic acid is generally suitable for sensitive skin. However, it is recommended to start with a low concentration and monitor the skin's reaction to avoid any irritation.
Does lactic acid cause photosensitivity?
Lactic acid can indeed make the skin more sensitive to the sun. Therefore, it is recommended to use it in the evening and apply sun protection the following morning.