L'Oréal Professionnel Série Expert Metal Detox Neutralizing Pre-Treatment Spray 500ml is a professional in-salon pre-treatment that prepares the hair before colouring, balayage or lightening services. Built around the unique Glicoamine molecule, it neutralises metals trapped inside the hair fibre — the hidden cause of breakage and unwanted colour shift — helping deliver more accurate colour results with significantly less damage.
About L'Oréal Professionnel Metal Detox
L'Oréal launched its first hair dye in 1909, and the Professionnel salon line has remained a cornerstone of professional hairdressing ever since. Metal Detox is one of L'Oréal Professionnel's most important modern launches — built on research into the role of dissolved metals in tap water and their effect on the hair fibre, particularly during colour services.
Key ingredients
- Glicoamine: the line's hero molecule — a small active that traps and neutralises metals inside the hair fibre.
- Amodimethicone: a conditioning silicone that helps smooth and protect the cuticle.
- Glycerin: humectant for additional moisture.
- Polyquaternium-7: conditioning polymer that helps with detangling.
Key benefits
- Neutralises metals inside the hair fibre before colour services.
- Up to 87% less hair breakage during colour processing.
- 100% true-to-tone colour — supports more accurate and predictable results.
- No-rinse application — keeps salon protocols streamlined.
- Generous 500ml salon-back-bar size for repeated professional use.
Who it's for
Metal Detox Pre-Treatment Spray is designed for professional use in salon — a pre-colour, pre-balayage or pre-bleach step applied by qualified colourists. It is particularly valuable for clients with hard-water exposure (city tap water, swimming-pool use) or repeated colour history, where metal build-up in the fibre is most likely to be an issue.
How to use
- Section the hair after the client's pre-colour assessment.
- Spray onto dry hair from roots to ends — approximately 8–10 sprays for short hair and 15–20 sprays for long hair.
- Comb through to distribute evenly.
- Do not rinse. Proceed directly with the colour or lightening service.
- Pair with Metal Detox shampoo, mask and concentrate for a complete in-salon and at-home metal-detox programme.
Specifications
- Size: 500ml
- Format: Leave-in metal-neutralising pre-treatment spray
- Range: Série Expert — Metal Detox
- Use: Pre-colour, pre-balayage, pre-lightening (professional)
- Brand: L'Oréal Professionnel
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