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Everything you need to know about purple shampoo for blonde hair
EVERYTHING YOU NEED TO KNOW ABOUT PURPLE SHAMPOO FOR BLONDE HAIR
What is purple shampoo?
All blondes know that finding that perfect blonde shade takes time, money, and a commitment to keeping the colour as fresh as when you left the salon. That’s where the beauty of purple shampoo comes in.
Purple shampoo is an absolute necessity for blondes to use in between hair colouring sessions as it easily helps keeps your blonde beautiful.
Why is purple shampoo necessary for blonde hair?
Those of us with blonde hair need purple shampoo because of how the hair is lightened in the first place. According to Redken Artist Adina Doss "When I lift a client's hair (colourist speak for lightening), there is an undertone that comes up, which I like to call 'raw blonde.' To get my clients to a richer, more quality blonde, I add a colour treatment called a toner, specifically Redken's Shades EQ, to eliminate any undesired undertones, whether that colour is yellow or yellow-orange or even a reddish undertone.”
Those undertones can come out when the colourist applies a toner, but you may find they start to appear between colour services as the toner fades. Insert the need for a purple shampoo to adjust tone at home!
Redken Artist Jaclyn Harwood says that these undertones can also be caused by things like sun, hard water or heat styling. For this reason, purple shampoo is not just for colour-treated blondes. Natural blondes need it, too, Harwood says. In fact, those who’ve been jumping on the unicorn hair trend of purples and blue in their hair can also benefit from purple shampoo to help keep violet hues from fading.
Salon Tip: When a colourist lightens your hair, he or she should always use a toner as a step in the colouring process. Doss says this is a non-negotiable—so don't be afraid to ask for it during your next service!
But why is purple shampoo purple?
“If you think of a colour wheel, as basic as it sounds, whatever colour you want to cancel out is directly across from it,” Doss says. “Directly across from yellow is purple. So, the purple helps eliminate the unwanted yellow colours from the hair.”
“It’s almost like a way to brighten the colour to a cooler tone,” Harwood says. “So, if the hair has a little bit of a yellow tone, a pigmented purple shampoo is going to neutralize that warmth.”
How often should I use purple shampoo?
Keep in mind that purple shampoo does not replace your regular shampoo and should only be used once or twice a week. Doss warns that there is such a thing as too much purple.
“When you eliminate too much yellow, it visually ends up darker and a lot of people don’t want it to look darker,” she says. “So if you wash your hair twice a week, use the purple shampoo only once a week to keep the hair bright but not yellow.”
Harwood also adds that purple shampoo can be mixed with regular shampoo to add some of the violet pigment into a regular hair cleansing routine without any risk of going overboard.
Redken’s Colour Extend Blondage, is now available and is formulated with a Triple Acid Protein complex—amino, citric and maleic acids and wheat protein—that neutralises unwanted undertones and helps strengthen hair’s cuticles while battling brass and keeping blondes bright
For more blonde hair colour inspiration and tips on how to maintain your hair colour between salon visits, follow @Redken on Instagram!