What is this product?
Pureology Perfect 4 Platinum Shampoo contains a zero-sulfate formula that softens, enhances brightness and adds shine while gently cleansing and strengthening fragile blonde hair.
More info:
Provides internal and external strengthening to damaged blonde hair.
ZeroSulfate
Apply a quarter-sized amount of concentrated shampoo to wet hair and lather. Rinse. Repeat if necessary.