K18 TripleBright Oxidation Defense Purple Shampoo — 4.2 fl oz Non-Staining Blonde Shampoo, Mineral-Removing & Brass-Preventing

K18 TripleBright Oxidation Defense Purple Shampoo is a non-staining, triple-action blonde shampoo that removes metals and minerals, neutralizes existing brass, and helps prevent future discoloration for highlighted and lifted hair.

Designed for color-treated, highlighted, and naturally lightened hair, this foam shampoo uses ionic detox and precision violet technology to tackle the root causes of brassiness rather than just masking it. The formula lifts mineral buildup that causes unwanted warm tones, corrects yellows and oranges without depositing pigment, and leaves a biopolymer barrier that reduces reattachment of metals during future washes. It’s lightweight, easy to apply, and works on a wide range of blonde, silver, and lightened shades.

How does TripleBright remove brass while staying non-staining?

TripleBright employs ionic detox to bind and lift metals and minerals that oxidize and create brassiness. Instead of depositing violet pigment, the shampoo neutralizes warm tones using precision violet balancing and rinses clean, avoiding overtone or staining on porous lightened hair.

• Ionic detox targets mineral buildup from hard water and environmental metals.
• Precision violet technology neutralizes yellow and orange tones without pigment deposition.
• Foam texture rinses away clean for non-staining results even on porous hair.

How long does a single wash take to show improvement?

Visible neutralization and reduced warmth can appear after a single use, with the formula capable of removing mineral-induced brass equivalent to several months of hard-water buildup in one wash. Results deepen with routine use as the biopolymer builds a protective layer to limit reattachment of metals.

• Apply foam to wet hair, distribute, lather, and leave 1–3 minutes for optimal action.
• One treatment can eliminate up to months’ worth of brass caused by minerals.
• Consistent use extends tone correction and reduces frequency of salon toning.

Will this shampoo work on all kinds of highlighted and lifted tones?

Yes — TripleBright is formulated for a spectrum of lightened tones, from subtle highlights to heavily lifted blondes and silvers. The non-depositing violet correction and mineral removal make it suitable for any blonde shade without altering intended color dimensions.

• Safe for pale platinum, ash, balayage, foils, and bleached bases.
• Non-staining action avoids unwanted color shifts on porous strands.
• Helps extend salon tone between professional services.

How do I use the foam shampoo for best results?

The foam format is simple: apply to thoroughly wet hair, spread evenly from roots to ends, and lather. Let it sit for 1–3 minutes depending on brassiness level, then rinse; repeat only as needed. No additional toner is required for maintenance in most cases.

• Wet hair completely before applying foam for even distribution.
• Leave on 1–3 minutes — longer within that range for stronger brass correction.
• Rinse thoroughly; follow with conditioner or a K18-compatible treatment if desired.

Who this is for: K18 TripleBright is aimed at anyone with highlighted, balayage, bleached, or naturally light hair who wants a science-driven, easy-to-use shampoo that attacks the cause of brassiness. It’s ideal for people dealing with hard-water discoloration, frequent sun or environmental exposure, or those seeking a non-depositing alternative to traditional purple toners. If you prefer a quick, rinse-out product that corrects, cleanses, and helps protect tone between salon visits, TripleBright fits that routine.

Ingredients

Water(Aqua)(Eau), Cocamidopropyl Hydroxysultaine, Sodium Cocoyl Alaninate, Sodium Methyl Cocoyl Taurate, Propanediol, Polysorbate 20, Cocamidopropyl Betaine, Trisodium Dicarboxymethyl Alaninate, Sodium Phytate, Polyquaternium-77, Glycerin, Sodium Polyaspartate, Sodium Citrate, Sodium Gluconate, Citric Acid, Tetrasodium Glutamate Diacetate, Aspartic Acid, Caprylyl Glycol, Cocamidopropyl Dimethylamine, Sodium Glycolate, Sodium Hydroxide, Sodium Benzoate, Sodium Chloride, Acid Violet 43 (CI 60730), Phenoxyethanol, Fragrance (Parfum), Hexyl Cinnamal, Hydroxycitronellal, Citrus Limon (Lemon) Peel Oil, Tetramethyl Acetyloctahydronaphthalenes, Limonene, Benzyl Salicylate, Citrus Aurantium Peel Oil, Citrus Aurantium Flower Oil