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Your Colour Isn't Failing. Your Water Is Contaminating It.

Copper and iron ions from water enter your hair with every wash. When they mix with colour and bleach, results become patchy and unpredictable — through no fault of the formula or stylist.

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Detox

See the Metal Detox System

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WHO NEEDS METAL DETOX

HIGHEST PRIORITY

Anyone Who Bleaches or Lightens

Patchy lift, immediate brassiness, uneven sections — these are metal contamination presentations

HIGHEST PRIORITY

Colour-Treated Hair With Instability

Colour that fades fast, shifts in tone, or doesn't

match the shade card

HIGHEST PRIORITY

Colour-Treated Hair With Instability

Colour that fades fast, shifts in tone, or doesn't

match the shade card

 

ALSO BENEFITS

Porous & Damaged Hair

Porous hair absorbs 2x more water — and 2x more metal

ALSO BENEFITS

Porous & Damaged Hair

Porous hair absorbs 2x more water — and 2x more metal

 

ALSO BENEFITS

Porous & Damaged Hair

Porous hair absorbs 2x more water — and

2x more metal

ALSO BENEFITS

Older Vancouver Buildings

Pre-1990s buildings with copper plumbing have higher copper ion content

The L'Oreal Professionnel Metal Detox System

Metal Detox is a 5-product system with two protocols: a home maintenance routine (shampoo + mask + oil, used every wash) and a professional pre-service treatment (Pre-Treatment spray, used before every colour, balayage, or lightening appointment). Both use Glicoamine as the active — the only chelating agent small enough to penetrate the hair fiber and neutralize metal inside the cortex.

  • Anti-Metal Shampoo

  • Anti-Metal Mask

  • Leave-in Cream

  • Concentrated Oil

L'Oreal Professionnel Metal Detox Anti-Metal Shampoo - Zennkai

L'Oreal Professionnel Metal Detox Anti-Metal Shampoo

$38.95 CAD
Size
Quantity
L'Oreal Professionnel Metal Detox Anti-Deposit Mask - Zennkai

L'Oreal Professionnel Metal Detox Anti-Deposit Mask

$48.95 CAD
Size
Quantity
L'Oreal Metal Detox Cream Leave-in - Zennkai

L'Oreal Professionnel Metal Detox Cream Leave-in

$38.95 CAD
Size
Quantity
L'Oreal Professionnel Metal Detox Anti-Deposit Protecting Oil - Zennkai

L'Oreal Professionnel Metal Detox Anti-Deposit Protecting Oil

$29.95 CAD
$40.95 CAD
Size
Quantity

Two Different Water Problems. Two Different Solutions.

FEATURE

L'OREAL METAL DETOX

KERASTASE PREMIERE

What it removes 

Copper and iron metal ions from water and oxidative services

Calcium and magnesium deposits from hard water

Active ingredient

Glicoamine — patented chelating agent that tracks and neutralizes metal inside the fiber

Citric Acid + Glycine — decalcifying and keratin chain repair

Symptom it fixes

Patchy bleach, colour instability, colour shift, service-related breakage

Stiff, rigid, brittle hair — dullness — bond repair underperforming

Who needs it most

Anyone who colours, bleaches, or uses oxidative services

Anyone in a hard water area with stiff, dull, brittle hair

When to use

Pre-service treatment before every colour + daily shampoo system

Every wash for first 4 weeks, then every 2–3 washes

Can it be used together?

Yes — and for clients in older Vancouver buildings who colour, using both is the complete protocol

If you have both colour instability and hair stiffness or brittleness, the full protocol is Metal Detox and Première for at-home calcium management. Both are available at Zennkai. → See the Hard Water Hair Repair for the full Kerstase Premiere system.

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FAQ

What is metal detox for hair and what does it do?

Metal detox treatments target metal particles — mainly copper and iron — that collect inside the hair fiber from tap water, well water, and swimming. These metals sit dormant until a chemical service (color or bleach) triggers them, where they catalyze oxidation that causes breakage, uneven color, and brassiness. A metal detox uses a small chelating molecule to neutralize the metals before processing. L'Oreal Professionnel Metal Detox is the known professional system.

Metal detox vs clarifying — what's the difference?

A clarifying shampoo lifts surface buildup — product residue, oil, light mineral film — sitting on the outside of the strand. A metal detox works inside the fiber, using a chelating molecule small enough to penetrate and bind metal ions that clarifiers can't reach. If your hair turns brassy or breaks after coloring, that's a metal problem clarifying won't solve. They're complementary, not interchangeable.

Do I need a metal detox treatment?

You likely benefit from metal detox if you're on well water or hard municipal water, swim regularly, or notice color turning brassy, dull, or processing unevenly. Metals build silently inside the fiber and only show their effect during chemical services, so the damage is often blamed on the color rather than the water. A pre-service metal detox is especially worth it before bleaching or major color.

Why does my bleach go patchy or uneven?

Patchy, uneven bleach lift is one of the most common presentations of metal contamination in hair. Copper and iron ions — deposited inside the hair fiber from municipal water and copper plumbing — react with the oxidants in bleach and lightener during the service. This reaction is uneven across the hair shaft because metal concentration varies section to section, strand to strand, depending on each strand's porosity and exposure. Where metal concentration is higher, the oxidant reaction is disrupted, resulting in sections that lift less, go brassier, or achieve different tones than adjacent sections despite identical product application. The professional protocol for preventing this is L'Oréal Professionnel Metal Detox Pre-Treatment Spray (10% Glicoamine) applied to dry hair before every lightening service. Glicoamine neutralizes metal ions inside the fiber before they can react with bleach oxidants — restoring the predictability and consistency of the service result.

What is Glicoamine and how does it work in hair?

Glicoamine is a patented chelating molecule developed by L'Oréal Professionnel specifically for hair metal contamination. A chelating agent is a molecule that binds to metal ions and renders them chemically inert — preventing them from reacting with other substances. What makes Glicoamine unique is its molecular size: it is small enough to penetrate the hair fiber and reach metal ions inside the cortex, where other chelating agents cannot reach. Once inside the fiber, Glicoamine tracks, binds to, and neutralizes copper and iron ions — preventing them from reacting with the oxidants in colour and bleach services. In clinical testing, Metal Detox with Glicoamine delivered 99% less breakage in one use, 87% less breakage risk as a pre-service treatment, and 100% true-to-tone colour results. Glicoamine is present across the full Metal Detox range — Pre-Treatment Spray, Anti-Metal Shampoo, Professional Mask, Leave-In Cream, and Concentrated Oil — providing both acute metal removal and ongoing protection against re-accumulation.

How is L'Oréal Metal Detox different from Kérastase Première?

L'Oréal Metal Detox and Kerastase Premiere both address water-related hair damage, but they treat completely different contaminants. Metal Detox (Glicoamine) addresses copper and iron metal ions that penetrate the hair fiber from water and oxidative services — the primary symptom is colour instability, patchy bleach, and service-related breakage. Kérastase Premiere (Citric Acid + Glycine) addresses calcium and magnesium mineral deposits from hard water — the primary symptom is hair stiffness, rigidity, brittleness, and dullness that doesn't respond to conditioning. Both contaminants come from water, but they are chemically distinct and require different treatments. In older Vancouver buildings with copper plumbing and hard water, both forms of contamination are often present simultaneously — using both systems together is the complete professional protocol for water-contaminated hair.

Does everyone need Metal Detox or just people who colour their hair?

Metal contamination from water is universal — everyone who washes their hair in municipal water accumulates some level of metal in their hair fiber. However, the consequences are most significant for clients who colour, bleach, or use oxidative hair services, because metal ions react with service oxidants to create unpredictable results. For clients who don't colour, metal contamination still causes increased breakage (particularly in porous hair, which absorbs 2x more water and metal), reduced smoothness, and accelerated damage in heat-styled hair. The home maintenance system (Anti-Metal Shampoo + Mask + Oil) benefits all hair types. The Pre-Treatment Spray is specifically for clients receiving colour or lightening services. For coloring clients in Vancouver with copper plumbing — the pre-treatment before every service is not optional if consistent, predictable results are the goal.

How often should I use L'Oréal Metal Detox?

The recommended usage protocol for the L'Oréal Professionnel Metal Detox system: Anti-Metal Shampoo — every wash (replaces regular shampoo). Professional Mask — once or twice weekly after shampooing (1 minute leave-in for maintenance, 15 minutes for intensive treatment on bleached hair). High Protection Cream or Concentrated Oil — daily on towel-dried or dry hair, lengths to ends. Pre-Treatment Spray — before every colour, balayage, or lightening service. For clients in older Vancouver buildings with copper plumbing or those who bleach frequently, this full protocol is recommended as an ongoing routine rather than a temporary course of treatment. Metal re-accumulates with every wash in a metal-contaminated water supply — consistent ongoing use prevents re-accumulation rather than repeatedly treating the problem after the fact.

Can Metal Detox be used on color-treated and bleached hair?

Yes — Metal Detox was designed specifically for colour-treated and bleached hair, which is the highest-priority group for metal contamination management. The Anti-Metal Shampoo is sulfate-free and colour-safe, formulated to protect colour longevity while removing metal particles. Clinical testing of the full system demonstrated longer-lasting colour, 2x shinier results, and 100% true-to-tone colour consistency. For bleached hair specifically: bleached and lightened hair is the most porous hair type, which means it absorbs 2x more water — and 2x more metal — than unprocessed hair. This makes the ongoing use of Metal Detox maintenance products particularly important between lightening services, not only at the service itself. The Professional Mask provides 100 hours of nourishment specifically for dry and bleached hair while protecting against metal re-accumulation.

My hair color looks different than expected — could it be metal contamination?

Yes — metal contamination is one of the most common and most frequently overlooked reasons for unpredictable colour results. Signs that metal contamination may be affecting your colour: the result is warmer, brassier, or more orange than the formula should produce; colour fades unusually quickly; bleach lifts unevenly across sections of the head; colour doesn't match the target shade despite correct application; highlights look inconsistent from foil to foil. These outcomes happen when metal ions inside the hair fiber react with colour or bleach oxidants during the service — disrupting the expected chemistry. L'Oréal Metal Detox Pre-Treatment Spray (10% Glicoamine) applied before the service neutralizes metal before it can react. For clients who have experienced repeated unexpected colour results despite professional application, Metal Detox pre-treatment is the professional intervention that restores predictability.

Where can I buy L'Oréal Professionnel Metal Detox in Vancouver?

L'Oréal Professionnel Metal Detox is available at Zennkai across six Metro Vancouver locations — South Granville, Burnaby, Coquitlam, Langley, Pitt Meadows, and Surrey — and online at zennkai.com. Zennkai carries the full Metal Detox system: Pre-Treatment Spray (professional pre-service), Anti-Metal Cleansing Cream Shampoo, Professional Mask, High Protection Leave-In Cream, and Concentrated Oil. All products are 100% authenticated professional stock — the identical formulas used in Vancouver salons, with free shipping on orders over $50 and Beauty with Benefits loyalty points on every purchase.