Glycolic acid is a chemical exfoliator, and therefore it can brighten your underarms. The acid helps to break down and remove dead skin cells, leaving you with a fresh epidermis, so say goodbye to discoloration from shaving and ingrown hairs. The exfoliating properties will also even out texture, much like it would for your face. Not only can it brighten and smooth your armpits, but it can take the place of deodorant's odor-blocking properties.

Dermatologist Dr. Marisa K. Garshick told Today, "By exfoliating away the dead skin cells and lowering the skin's pH, it may also help to prevent body odor by preventing buildup and making it less likely for bacteria to lead to foul-smelling odors." However, the skincare expert added, "Applying glycolic acid will not reduce sweating."

It does not have any of the worrisome aluminum-based compounds that define antiperspirants, so you might smell fresh, but also be dripping sweat. It is an alternative to traditional deodorant that can give you model pits, but it doesn't come without risks.