Blonde pros, take note: K18 is coming for brass—and not just with more purple pigment.
The brand has unveiled TripleBright Oxidation Defense Purple Shampoo, a new toning cleanser engineered to tackle the actual chemistry behind dull, oxidized blonde hair. Instead of simply masking yellow tones, the formula works in three steps: remove, neutralize and defend.
First up: ionic detox. The shampoo is designed to strip away up to three months of mineral and hard-water buildup in a single wash, helping restore light reflection and clarity to blonde hair that’s gone a little muddy.
Next, precision violet technology steps in to neutralize yellow tones—without the heavy pigment dump that can leave hair looking gray, flat or accidentally lavender. The violet pigments are delivered in a lightweight foam, giving stylists more controlled, even distribution from root to tip.
Finally, a protective biopolymer helps shield hair from future mineral and metal buildup, working to keep blonde brighter between salon visits.
According to Suveen Sahib, brassiness isn’t just a color problem—it’s a chemistry problem. Oxidation and mineral buildup distort tone over time, especially after lightening services. TripleBright aims to reset that process at the source.
The shampoo is designed to complement the brand’s repair lineup, including K18REPAIR and the K18 Molecular Repair Hair Mask, pairing surface-level brightness with internal bond repair.
Bonus for busy colorists: the foam format won’t stain hands, towels or the shampoo bowl—and it rinses clean without over-toning drama.
TripleBright Oxidation Defense Purple Shampoo hits Sephora online March 23, with in-store and K18Hair.com availability beginning March 27. For blonding specialists tired of fighting brass with blunt purple pigment, this launch promises a more science-forward fix.
