Beauty Hacks You Shouldn't Try at Home

The Hack: Smearing lime juice on underarms to lighten and deodorize.

Safety First: Both lemons and limes are quite drying and can cause irritation. "Further, many citrus fruit can cause something called phytophotodermatitis, also now as "lime dermatitis." It results in hyperpigmentation in the affected area and it is caused by the interaction between photosensitizing elements in the fruits and UV light," explains Michelle Henry, MD, Clinical Instructor of Dermatology at Weill Cornell Medical College.