Why Purple Shampoo Works on Gray Hair
Purple shampoo contains violet pigments that cancel out yellow and brassy tones in gray or silver hair. It works through color theory, where purple and yellow are opposite on the color wheel, helping hair look cooler and more even.
What to Look for in a Purple Shampoo
Choose a sulfate-free formula if your hair is dry or processed. Look for gentle cleansers, moisturizers like argan oil, and a balanced violet pigment. Avoid overly strong formulas that can stain or dry out gray hair.
How to Use Purple Shampoo Correctly
Wet hair, apply a small amount, and lather mainly at the roots and mid-lengths. Leave it on for one to three minutes, then rinse. Start with once a week and increase only if needed. For more guidance, see this guide on using purple shampoo for gray hair.
