L'Oréal Professionnel Série Expert Metal Detox Neutralizing Pre-Treatment Spray 500ml

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

1. Section the hair after the client's pre-colour assessment.
2. Spray onto dry hair from roots to ends — approximately 8–10 sprays for short hair and 15–20 sprays for long hair.
3. Comb through to distribute evenly.
4. Do not rinse. Proceed directly with the colour or lightening service.
5. 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