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Introducing K18 Triple Bright: The End of Brassiness

27th Apr 2026

Blonde is not just a colour. It's a commitment.

Meet Triple Bright, a breakthrough foam shampoo engineered to defend, preserve, and perfect lightened hair.

Blonde will always be the moment. But achieving it comes with a price containing damage, oxidation, and the relentless comeback of brassiness. Triple Bright was built to change that.

  • 100M people chemically colour their hair worldwide
  • 30M people routinely lighten their hair
  • 3× phases of oxidation defence in every wash

The Problem

Brass isn't cosmetic. It's oxidation, from the inside out.

The professionals have always known this. Lightened hair is structurally different: more porous, more vulnerable, and far more susceptible to the environmental forces working against it every single day.

Traditional purple shampoo masks the symptom but ignores the source, leaving blondes with dull, dry, sometimes stained hair that still turns brassy within weeks.

Hard Water Minerals

Copper, iron, and calcium found in unfiltered tap water embed into the hair fibre and trigger oxidation, the hidden root cause of warmth, brassiness, and colour fade.

Porous, Vulnerable Hair

Lightening services open the hair structure significantly, making it porous and prone to absorbing exactly the metals and minerals that accelerate oxidative stress.

Purple Pigment Paradox

Purple pigments can themselves oxidise over time, reducing performance and leading to uneven tone correction, the very result they were meant to prevent.

Compounding Stressors

Metals, minerals, chemical history, and mechanical stress compound together, accelerating the oxidation process far beyond what a standard toning shampoo can counter.

The Solution

Triple-Phase Defence. One transformative wash.

Meet TripleBright Oxidation Defense Purple Shampoo

Image Credit: www.k18hair.com

1. Remove

Triple Bright's foam formula actively draws out brass-inducing metals and minerals that have embedded into the hair fibre, addressing the oxidative source rather than masking its result.

2. Neutralise

Purple tone-correcting technology cancels existing brassiness while Triple Bright's oxidation defence shields the hair from the inside, delivering brighter, longer-lasting results than conventional purple shampoos.

3. Defend 

A protective barrier helps prevent metals and minerals from reattaching during future washes, building ongoing oxidation resistance rather than requiring constant correction.

Triple Bright works best as part of a complete ritual.

K18 Triple Bright is designed to complement every K18 product in your routine and is especially powerful alongside the K18 Repair Service.

Tone & Protect

K18 Triple Bright

Triple-phase oxidation defence in a foam shampoo format. Removes metals, neutralises brassiness, and shields hair from future oxidative stress, all while preserving tone and health.

Repair & Restore

K18 Repair Service

Repairs and restores damaged hair fibres at the molecular level, working in sync with Triple Bright to deliver the complete blonde experience: structurally sound, tonally perfect hair.

Blonde,defended. Finally.

Available now in salons - and transformative as part of any lightening service.

Discover Triple Bright

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