Perfect hair Day (PhD) by Living Proof Dry Shampoo 198ml Suitable for all hair types, safe for colour treated hair The Perfect hair Day (PhD) Dry Shampoo provides a cleansing formula that removes oil, sweat and odours from the hair, easily and efficiently. With the Healthy Hair Molecule and Triple-Action Cleaning Technology it works to leave hair fresher and cleaner to look at, smell and touch. Suitable for all hair types, safe for colour treated hair. Leaves no visible residue or powder build-up. To use: Shake well and spray over hair from 6 to 10 inches away. Apply section by section with sweeping motions. Leave for 30 seconds before massaging the hair to remove.