The lower-strength sister of the bestselling Paula’s Choice BHA Liquid Exfoliant, this new version is made up of a blend of mandelic and lactic acid and is designed to be gentle on skin.

Lactic acid build-up causes a burning sensation in your muscles during intense exercise. Lactic acid is not responsible for sore muscles the day after exercise, contrary to popular belief.

Lactic acid is the greatest of all time when it comes ... I also just really enjoy using it; the liquid, clear formula makes it mess-free, and the dropper applicator is a breeze to get to grips ...

So you been sprinting, Lily? Just a bit of cramp? So that's the lactic acid building up. When an athlete does too much or runs too vigorously, not enough oxygen can be delivered to the muscles.

For dark skin, chemical exfoliants, especially Alpha Hydroxy Acids (AHAs) like Glycolic Acid and Lactic Acid, are often the better choice. Physical exfoliants can be too abrasive and cause micro ...