Perfect hair Day (PhD) is the genius solution that does it all: smoothness, volume, conditioning, strength and polish. PhD Shampoo lets you wash your way to beautiful, healthy hair, while PhD Conditioner adds weightless nourishment. The PhD 5-in-1 Styling Treatment delivers the five benefits for a perfect hair day in one easy step. PhD Shampoo, 2 oz.; PhD Conditioner, 2 oz.; PhD 5-in-1 Styling Treatment 2 oz. Made in USA.