L'Oréal Professionnel Serié Expert Metal Detox Metal Neutralizer Pre-Treatment Spray for Hair Protection During Colour Services 500 ml/16.91 oz
Tap water carries trace metals, copper mostly, and hair collects them. You cannot see it happening and it makes no difference day to day, but the moment you put bleach or colour on that hair the metal reacts, and the result is breakage, dullness, and colour that lands somewhere other than the swatch predicted.
Metal Detox is the pre-treatment L'Oréal Professionnel built to deal with it. You spray it on before the technical service, not after.
- Neutralises copper and other metal deposits sitting in the fibre
- Makes colour and lightening results more predictable
- Reduces the breakage that follows a technical service on metal-loaded hair
- 500 ml, which is a salon backbar size rather than a home one
Worth knowing that it belongs to colour work rather than to a general care routine. If you are not colouring or lightening, it has nothing to do.
Hard water areas make the difference most visible. The copper load in hair is higher there, so the case for neutralising before every lightening service is stronger. Follow the timings printed on the bottle rather than guessing, since this is a backbar product written for salon use.
Aqua/Water/Eau, Alcohol Denat., Polyquaternium-6, Glicoamine, Polysorbate 20, Parfum/Fragrance, Sodium Hydroxide, Citric Acid, Limonene, Hexyl Cinnamal, Linalool, Alpha-Isomethyl Ionone, Geraniol, Benzyl Benzoate, Benzyl Alcohol, Citronellol, Ionene, Hydroxycitronellal, Coumarin, Eugenol
- 24-hour delivery
- Every brand we carry ships within 24 hours, not just the hero lines. Order before 2pm and it leaves the same working day.
- Free over £40
- UK delivery is free on orders over £40. Below that it is a flat rate, shown at checkout before you pay.
- Tracking
- You get a tracking link by email the moment it is picked up.
- 30 days
- Send anything unopened back within 30 days for a full refund. No explanation needed.
- Opened it and it is wrong for your hair?
- Tell us what happened. Curl products are hard to judge from a photo, and we would rather swap it than have you stuck with it.
- We price match
- Find it cheaper somewhere else and we will match the price.
Application tips
Dry hair, before anything else. Spray section by section until the hair is evenly damp, comb it through so nothing is missed, and leave it. There is no rinsing and no development time.
Then go straight into the colour or lightener as normal. It does not change your mixing, your timing or your formulation, and it does not dilute what goes on top of it.
Results
Colour lands closer to the swatch. On hair that has been washed in hard water for years, the difference is between a result you can predict and one you find out about at the basin.
Breakage during and after the service drops, which matters most on a full head of bleach where the hair is being pushed hardest. Nothing about the finish changes visually, because the work happens before the visible part starts.
Composition
Full ingredients list
Aqua/Water/Eau, Alcohol Denat., Polyquaternium-6, Glicoamine, Polysorbate 20, Parfum/Fragrance, Sodium Hydroxide, Citric Acid, Limonene, Hexyl Cinnamal, Linalool, Alpha-Isomethyl Ionone, Geraniol, Benzyl Benzoate, Benzyl Alcohol, Citronellol, Ionene, Hydroxycitronellal, Coumarin, Eugenol
Reviews
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