Purple shampoo is a toning shampoo that deposits violet pigment on the hair to neutralize yellow and brassy tones in blonde, gray, silver, or highlighted hair, helping it look cooler, brighter, and less dull over time.

Quick Scoop

What does purple shampoo actually do?

  • It neutralizes brassiness by using violet pigments to cancel out yellow and warm tones in lightened hair (think color wheel: purple opposite yellow).
  • It refreshes and maintains blonde, silver, gray, or platinum shades between salon visits so they stay cooler and less “yellow.”
  • It adds a slight toning effect, not a full-on dye job, so it adjusts the tone of your existing color rather than radically changing it.
  • Regular but not daily use can help prevent hair from looking dull, faded, or nicotine-yellow and keep it looking freshly toned.

Who is it best for?

  • Bleached or highlighted blondes who notice their hair turning warm, golden, or orangey between appointments.
  • People with gray, white, or silver hair who want to avoid a yellow cast and keep their shade icy.
  • Those with light or balayage/ombré sections who want to keep the lighter pieces from going brassy.

How it works (simple version)

  • Purple pigment lightly coats the hair shaft when you shampoo.
  • Because purple and yellow cancel each other, the violet tint visually reduces yellow/orange, making the overall color look cooler and cleaner.
  • Used correctly (usually 1–2 times a week, depending on how brassy you are and the formula strength), it keeps tone balanced without over-toning into a grayish or violet cast.

One quick example

If your salon-fresh icy blonde starts looking golden and dull after a few weeks, swapping your regular shampoo for a purple shampoo once or twice a week can pull those yellow tones back down and make it look closer to that original cool shade again.

Information gathered from public forums or data available on the internet and portrayed here.