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In the crowded world of skincare, it can be difficult to know what the standout products are.
Lactic acid is an alpha hydroxy acid that is naturally found in sour milk and yogurt, according toByrdie.

It may cause a bit of stinging or tingling, and some redness, which is normal.
Both products showed results, with the 12% option returning slightly more benefits.
Lactic acid is considered a gentle treatment, much more so than glycolic ormandelic acid.

According toVeryWellHealth, sun sensitivity can be present for weeks, even when you stop using lactic acid.
So, use anSPF 30 or higher sunscreento protect against creating new sun damage or getting sunburned.
Consider adding lactic acid into your skincare routine with a three-on/three-off schedule.