Lactic AcidBenefits, how to use & safety
The exfoliant that hydrates while it works.
What is Lactic Acid?
Lactic acid is a larger and gentler AHA than glycolic acid. It exfoliates while also behaving like a humectant, drawing water into the skin, which makes it a more comfortable choice for dry or sensitive skin.
How it works
It loosens dead surface cells to improve glow and texture, and supports the skin's natural moisturising factors. Its larger molecule penetrates more slowly, so it is less likely to sting.
Key benefits
- Gentle exfoliation for dull skin
- Improves hydration while exfoliating
- Softens rough texture
- Helps even tone gradually
- Dullness
- Dryness
- Rough texture
Best suited for: Dry, dehydrated and mildly sensitive skin that wants an exfoliant.
How to use it
Use 5–10% lactic acid at night, two to three times per week. Follow with moisturiser, and wear sunscreen daily.
Pairs well & what to avoid
- Hyaluronic acid
- Ceramides
- Niacinamide
- Using with retinol the same night
- Layering with other strong acids
Safety & side effects
Mild tingling is normal. Stop if irritation persists. It is often considered one of the more suitable acids during pregnancy at low strengths, but confirm with your doctor.
Frequently asked
Is lactic acid gentler than glycolic acid?
Yes. Its larger molecule penetrates slowly, which makes it less irritating.
Can I use lactic acid every day?
Low strengths may be tolerated daily, but most skin does better with two or three times per week.
Is lactic acid good for dark spots?
It can help fade superficial pigmentation over time, especially with sunscreen.
Educational content only, not medical advice. Individual skin responds differently. Patch-test new actives, introduce one at a time, and consult a dermatologist for persistent skin concerns, pregnancy or breastfeeding questions, or any prescription treatment.
