As a blonde, I am religious about de-brassing my hair on a weekly basis,with purple toning shampoo treatments, which work by depositing purple pigments on the hair shaft and thereby counteracting ...

For years, blondes have been buying up purple shampoo to “tone” their hair. The reason why is a lesson in color theory: Purple is opposite from yellow on the color wheel, so when hair starts to look ...

As anyone with platinum blonde hair doubtless knows, purple shampoos and conditioners are the secret to maintaining your icy shade. While the trick may seem super specific, take a step back, and it’s ...

SINCE LAST YEAR, Colgate has been using color theory to fix yellow stained-teeth through its Colgate Optic White Purple Toothpaste. On Sept. 15, they released the Colgate Optic White Purple Serum for ...

From optical brightening to charcoal cleaning, we look at how whitening toothpastes claim to work, and get the experts to weigh in Toothpaste aisles are packed full of weird and wonderful products ...

COLGATE has launched its first-ever Colgate Optic White Purple Serum, a whitening booster that redefines what it means to shine with confidence. Designed to instantly correct yellow tones using rich ...

As global marketing campaigns go, getting Kim Kardashian to trigger a TikTok tidal wave of hype is probably about as good as it gets. Australian teeth whitening brand HiSmile, dubbed 'purple shampoo ...

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