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.

Found yourself going a bit overboard with high-strength skincare acids? Lactic acid is the low-strength, gentle alternative that has incredible benefits, without the sensitivity. If you’re ...

A new study maps how specific lactic acid bacteria can enhance both the flavour and nutritional quality of plant-based dairy ...

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.