L'Oréal Professionnel Paris Metal Detox Pre-Shampoo Treatment — Strengthens & Protects Color-Treated, Damaged Hair from Hard Water

L'Oréal Professionnel Paris Metal Detox Pre-Shampoo Treatment is a pre-wash professional formula that reinforces hair fiber, fills micro-breaks and helps shield color-treated or damaged hair from metals in hard water.

Hard water and trace metals can weaken hair, increase porosity and accelerate color fade. This pre-shampoo concentrate is formulated to be used before cleansing: it targets fragile areas of the hair shaft, reduces the amount of metal absorbed during washing, and helps restore a smoother, less porous surface. Use it with the Metal Detox Shampoo and Mask for a comprehensive routine.

How does this pre-shampoo treatment protect hair from metals?

The formula works ahead of your shampoo to bind and limit metal uptake at the hair surface. By filling micro-breaks and reinforcing the fiber, it reduces the hair’s porosity so fewer metal ions penetrate during water exposure.

• Applies to dry or damp hair before shampooing to create a protective barrier.
• Refills micro-breaks that act as entry points for metal ions.
• Designed to be followed by Metal Detox Shampoo and Mask for optimal results.

What improvements can I expect after one use?

After a single application, hair feels stronger and smoother, with reduced breakage during washing. Visibly, strands appear less porous and more resilient, which supports color retention and a healthier texture.

• Immediate reduction in breakage during routine cleansing.
• Noticeably smoother fiber surface and less frizz from porosity.
• Prepares hair for better performance of follow-up shampoo and mask.

How should I use the Metal Detox Pre-Shampoo for best results?

Apply the treatment before shampooing on dry or slightly damp hair, focusing on mid-lengths to ends where damage and porosity are highest. Leave it on as directed, then rinse and continue with the Metal Detox Shampoo and Mask to complete the protocol.

• Distribute evenly from mid-lengths to ends, avoiding roots if desired.
• Allow recommended dwell time to let the formula refill micro-breaks.
• Rinse thoroughly and follow with Metal Detox Shampoo and Mask.

Will this work on color-treated and chemically processed hair?

Yes — the treatment is formulated for damaged and color-treated hair to reinforce fragile fibers and decrease porosity that accelerates color loss. It helps create a safer washing environment by reducing metal absorption that can dull color or affect texture.

• Safe for hair that has been colored, lightened or chemically treated.
• Helps prolong vibrancy by minimizing metal-driven damage.
• Complements salon-grade Metal Detox system for stronger results.

Who is this for: Professionals and consumers with damaged, porous or color-treated hair who live in areas with hard water or use mineral-rich water for washing. It suits anyone aiming to reduce breakage, smooth the hair surface and protect color from metal-related fading when used as part of the Metal Detox routine.

Ingredients

1248604 E - INGREDIENTS: AQUA / WATER / EAU • LAURETH-5 CARBOXYLIC ACID • AMINOPROPYL TRIETHOXYSILANE • COCAMIDOPROPYL BETAINE • SODIUM CHLORIDE • PEG-150 DISTEARATE • PHENOXYETHANOL • PEG-40 HYDROGENATED CASTOR OIL • POLYQUATERNIUM-67 • LACTIC ACID • LAURETH-4 • SODIUM HYDROXIDE • CAPRYLYL GLYCOL • LIMONENE • HEXYL CINNAMAL • LINALOOL • CITRAL • GERANIOL • POLYQUATERNIUM-7 • SODIUM BENZOATE • PARFUM / FRAGRANCE (F.I.L. N70031596/1).