"In really hot weather, I’ll look for something with notes of green tea or mint, like Régime des Fleurs Cacti, which makes me feel physically and mentally cooler," Murphy says. Notes of aloe vera, cucumber, and bergamot, plus refreshing black tea and mate, add to the chilling effect.

— That's our own Dr. Jessica! Read more in 13 Summer Scents That Will Get You Compliments All Year Round at InStyle.