Lactic acid has become one of the most popular ingredients in skincare products. As an alpha hydroxy acid (AHA) with antioxidant, exfoliant and moisturizing properties, it offers multiple benefits for the skin in one powerful ingredient.
What is Lactic Acid?
Lactic acid belongs to the AHA (Alpha Hydroxy Acid) group, which includes several well-known acids used in skincare:
- Glycolic Acid
- Lactic Acid
- Malic Acid
- Mandelic Acid
- Tartaric Acid
- Citric Acid
Each of these acids offers unique benefits, but lactic acid stands out for its combination of exfoliating and hydrating properties.
Lactic Acid Concentrations
The concentration of lactic acid in products varies depending on intended use:
- Home use products: Contain 10% or less lactic acid concentration, suitable for regular skincare routines.
- Professional use products: Contain 10-15% lactic acid concentration, designed for use by skincare professionals in clinical settings.
Benefits of Lactic Acid on The Skin
Regular use of lactic acid provides numerous benefits for the skin:
- Improving skin texture and tone: Lactic acid gently exfoliates the surface of the skin, resulting in a smoother and more even complexion.
- Increasing skin firmness: By promoting collagen production, lactic acid helps improve the skin's elasticity and firmness over time.
- Reducing dark spots: It effectively targets hyperpigmentation and dark spots, helping to brighten and even out skin tone.
- Smoothing fine lines: Regular exfoliation with lactic acid helps minimize the appearance of fine lines and wrinkles.
- Opening and cleaning pores: Lactic acid helps unclog pores by dissolving dead skin cells and excess oil that can lead to breakouts.