Lactic Acid
A gentle, hydrating AHA that smooths and brightens; a larger molecule than glycolic acid, so it suits dry and sensitive skin.
lactic acid, L-lactic acid, sodium lactate, AHA
Dull skin · Texture & large pores · Dry & dehydrated skin · Sensitive skin · Body texture & stretch marks
What it does
Lactic acid is an AHA, originally derived from milk and now usually made by fermentation, that is both a chemical exfoliant and a moisturiser. The acid helps to brighten skin, reduce the look of wrinkles and improve skin texture by loosening dead surface cells so they shed more easily.
How it works
A nifty ingredient that can do it all, lactic acid is a favourite for many skin experts due to its versatile nature. Gentler than glycolic acid thanks to its larger molecule, lactic acid works to loosen the bonds between dead skin cells to reveal glowing, healthier-looking skin. Thanks to its humectant abilities, and as a natural part of the skin's own moisturising factors, lactic acid helps the skin stay hydrated rather than stripped, as can be the case with some AHAs.
MG says
One of the gentlest AHAs, lactic acid is an ideal exfoliator for dry and sensitive skin. I love using lactic acid in my studios as it works for almost all skin types and concerns. It's also at the heart of the Lactic Acid Gel Cleanser I formulated for Victoria Beckham Beauty, one half of The Daily Cleansing Protocol.
Cautions
Like all AHAs, lactic acid can make skin more sensitive to the sun, so use a broad-spectrum sunscreen daily and for a week after use. Start with a low strength once or twice a week and build up; persistent redness, stinging or flaking are signs of over-exfoliation. Don't combine it with other exfoliants or retinoids on the same night. At cosmetic strengths it is generally considered suitable during pregnancy and breastfeeding, but if you're pregnant, trying to conceive or breastfeeding, check with your doctor, midwife or pharmacist before using it.
Regional notes
United States: The FDA recommends that cosmetics containing AHAs carry a “Sunburn Alert” label; the advice to wear sunscreen applies everywhere.
