Thanks to its myriad benefits (brightening! Smoothing! Acne-fighting!), glycolic acid has quickly become one of the most highly regarded ingredients in the skin care world. Water-light toners are a fuss-free way to incorporate glycolic acid into your skin care routine, because they'll work nicely alongside just about any other product you layer on top. Not all toners are created equally, though — and shopping for acidic skin care products in general can be tricky. But as long as you stick with the best glycolic acid toners featured on this list, you should be okay. They all have mild, gentle formulas with relatively low concentrations of glycolic acid, and most of them are alcohol-free, too.
Just remember, as with any type of chemical exfoliant, glycolic acid does run the risk of drying out your skin — so be sure to apply a generous layer of moisturizer on top. Similarly, it's important to be extra vigilant about sunscreen application, as glycolic acid can make your skin more photosensitive (since it works to shed off the outermost layer of your skin).