Redken Color Extend Blondage Color Depositing Shampoo 300ml

This purple shampoo has ultra violet pigment and Triple Acid Protein complex to tone, strengthen and brighten all in one for a brighter, stronger blonde

The ultra violet pigments help to preserve blonde hair color between appointments by keeping undertones at bay.

If you're blonde, purple shampoo should definitely be a regular part of your haircare routine.