L'Oréal Professionnel Paris Metal Detox Pre-Shampoo Treatment — For Damaged & Color-Treated Hair, Strengthens & Reduces Metal Upta

L'Oréal Professionnel Metal Detox Pre-Shampoo Treatment is a leave-on pre-wash formula that reinforces hair fiber, fills microscopic breaks, and reduces metal uptake from hard water to make color-treated, damaged hair stronger and less porous.

Hard water and dissolved metals can weaken colored or chemically treated hair by increasing porosity and triggering friction damage. This pre-shampoo step is formulated to act before you shampoo: it adheres to the fiber, rebuilds micro-breaks and limits how much metal-laden water the hair absorbs. Use it as part of the Metal Detox routine for the best balance of protection, strength and manageability.

How does this pre-shampoo help hair exposed to hard water?

The treatment forms a surface layer that reduces the hair’s immediate uptake of metals present in water, so less metal enters the fiber during washing. That lowers porosity and helps prevent the cascade of weakening and breakage that follows prolonged metal exposure.

• Targets micro-breaks to reduce metal absorption during the wash.
• Decreases porosity so hair is less prone to damage from minerals.
• Designed to be rinsed before shampoo for pre-wash protection.

What improvements can I expect after one use?

In a single application the formula leaves hair feeling more hydrated and noticeably smoother while reinforcing the fiber. Clinical-style performance notes show a dramatic drop in breakage when combined with the Metal Detox system, delivering stronger, more resilient hair immediately after use.

• Instant reduction in surface roughness and improved hydration.
• Reported decrease in breakage—helps hair resist mechanical stress.
• Works best when followed by Metal Detox Shampoo and Mask.

How do I use the Metal Detox Pre-Shampoo in my routine?

Apply to towel-dried or dry hair before shampooing; leave on briefly to allow the active ingredients to fill micro-breaks, then rinse and proceed with Metal Detox Shampoo and Mask. It’s a preparatory step, not a leave-in styling product, so follow the rinse-and-wash sequence for full results.

• Apply evenly on lengths and ends prior to shampooing.
• Leave on according to product directions, then rinse thoroughly.
• Continue with Metal Detox Shampoo and Mask for maximum effect.

Is this safe for color-treated or chemically processed hair?

Yes — the formula is developed specifically for damaged and color-treated hair to reinforce fiber and reduce metal uptake without stripping color. Use it as part of a dedicated care system to protect tone and improve overall hair strength.

• Formulated for colored and chemically-treated hair types.
• Helps preserve hair integrity and reduces color-impacting porosity.
• Best results when paired with Metal Detox Shampoo and Mask.

This pre-shampoo treatment is for people with color-treated, chemically processed or visibly weakened hair who want to reduce damage caused by mineral-rich water and restore fiber strength. If you live in an area with hard water, frequently color or bleach your hair, or notice increased breakage and porosity, adding this step before your normal shampoo can lower metal absorption, reinforce micro-breaks and improve manageability. For a full protection regimen, combine with L'Oréal Professionnel Metal Detox Shampoo and Mask to optimize strength, hydration and color longevity.

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).