

The Glossary: Lactic Acid | What Skin Conditions It's Good For and How to Incorporate This Superstar Ingredient Into Your Routine
Jun 1, 2021
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How Lactic Acid Works
- Lactic acid exfoliates the skin by loosening bonds between dead cells, brightening and smoothing skin texture.
- It is gentler than glycolic acid due to its larger molecule size, making it suitable for sensitive skin.
Safe Use of Lactic Acid
- Use lactic acid products at night and apply at least SPF 30 in the morning.
- Start with intermittent use like three nights on, three off to avoid irritation or purging.
Lactic Acid Application Tips
- Apply lactic acid serums after cleansing and toning.
- Use lactic acid treatments as peels, ideally once a month, and never exfoliate daily.