So-called “blotox” treatments focus on keeping hair fresh and bouncy by decreasing the amount of sweat that the scalp produces, in turn cutting back on dampness-induced frizz as well as stretching the amount of time you can go between shampoos.

The effect is achieved by injecting botulinum toxin (Botox or other approved forms like Dysport of Xeomin) into the skin of the scalp, either all over the scalp or in focused areas like around the hairline.

Obviously this chemical stop sign is beneficial for those who experience intense sweating, but even those who only get moderately dewy during spin class will find the anti-perspirant bonus from injections.