L'Oréal Professionnel
Serie Expert
Metal Detox Pre-Treatment

Metal Detox Pre-Treatment is rated 4.6 out of 5 by 339.
  • y_2026, m_8, d_4, h_10
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_2, bvpage2n
  • co_hasreviews, tv_54, tr_285
  • loc_en_US, sid_loreal-professionnel-metal-detox-pre-treatment, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 46ms
  • reviews, product
Metal Detox Pre-Treatment
Preview image 1 of Metal Detox Pre-Treatment
Preview image 2 of Metal Detox Pre-Treatment
Preview image 3 of Metal Detox Pre-Treatment
Preview image 4 of Metal Detox Pre-Treatment
watch the product video
Select Size
Available options to select
16.9 oz.
#E3549301
Auto Replenish:
FREE SHIPPING OVER $50 & EARN 100 PROREWARDS POINTS
  • Choose your frequency. Skip or cancel anytime.
  • Free shipping over $50* & 100 ProRewards Points++ on all recurring orders.
  • Select auto-delivery in cart.
  • Exclusions apply.
Learn More
Purchase Options
Find in-store availability
saloncentric credit card take charge Learn More

What It Is

A pre-treatment that neutralizes metals inside the fiber before each color, balayage & lightening service.

What It Does

• Netralizes metal before a color, balayage or lightening service.

• Provides 87% less breakage.

• Delivers 100% reliablle color results.

• Is compatible with all lightener & hair color brands.

What Else You Need to Know

Everyone has metals in their hair.

• The cause: Metals erode in our pipes, mixing with our water and ultimately accumulating inside the hair fiber.

• The consequences: When metal particles mix with hair color and lightener oxidants, they can lead to unreliable color results and breakage.

• The solution: Metal Detox.

Before a color, balayage or lightening service:

• Spray (Mist) on dry hair, focusing on the lengths. Keep the trigger spray 8 in. away from hair.

• Short hair - 8-10 sprays.

• Long hair - 15-20 sprays.

• Let it air dry, while prepping formulas.

• Do not rinse. No added time needed.

• Follow with color, balayage or lightening service.

Powered by glicoamine, the only active agent small enough to trap & neutralize metals inside the hair fiber.

AQUA / WATER / EAU • GLYCINE • ALCOHOL DENAT. • SODIUM HYDROXIDE • PEG-40 HYDROGENATED CASTOR OIL • AMODIMETHICONE • TRIDECETH-5 • GLYCERIN • TRIDECETH-10 •PHENOXYETHANOL • ACETIC ACID • POLYQUATERNIUM-7 • SODIUM BENZOATE

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 5 out of 5 by from Great pre treatment This metal detox line is superb. One of my favorite ones because the whole set really works well together. It makes your hair feel so smooth and soft and tge scent is light citrus. Very pleasant smell. When your hair is dried your hair looks and feels really healthy . I like this line very much
Date published: 2025-12-29
Rated 4 out of 5 by from Great addition to my salon I have added using this at my salon and have been super happy with the results
Date published: 2025-12-29
Rated 5 out of 5 by from Love this! I really like this product! I have fashion colored curly hair and this feels very hydrating to my hair as a complete system. I will be purchasing this again and recommending it to clients and family
Date published: 2025-12-29
Rated 5 out of 5 by from Try it! Amazing! I was compensated for my review. I did not receive the spray, I received the pre-shampo treatment. This left my clients hair feeling so good due to her heavy mineral content in her water.
Date published: 2025-12-29
Rated 5 out of 5 by from Great product The I received this for a review. I really loved it. It helped my blondes tone more evenly and their hair felt amazing after.
Date published: 2025-12-28
Rated 4 out of 5 by from No extra prep time L'Oreal Professional Metal Detox Pre-Treatment Spray is a nice, in salon, pre color/lightening option to add to your service as an extra layer of protection for the integrity of your clients hair. With claims of less breakage and better over all tonal control, it's definitely worth trying. I like that this product neutralizes metals before the service starts to help with breakage and color shifting. I appreciate that its just a few quick sprays before coloring with not alot of extra steps and no added time.
Date published: 2025-12-28
Rated 4 out of 5 by from Good stuff This does make for a more even and less brassy hilite. Only thing I didn’t like is that the hair was a little damp and I find foiling on dry hair more precise That’s a personal preference.
Date published: 2025-12-28
Rated 5 out of 5 by from A great pre treatment! I received this product in exchange for a review. I thought this was great! I tried the whole system with and then without it, and it really made a difference. I really like the smell, too. I would definitely buy again! 10/10
Date published: 2025-12-28
Rated 5 out of 5 by from fantastic I received this product to try and test. I could not be happier with the results. Using it before services has made a huge difference in my clients hair. The hair takes better to color etc. clients love the results.
Date published: 2025-12-26
Rated 4 out of 5 by from Used it with the whole system I used this product in conjunction with the whole system. It worked well as a whole. I received this product in exchange for my fair and honest review
Date published: 2025-12-26
Rated 5 out of 5 by from Works as described Great compared to similar products. Works as described and follow all steps. Hair felt much better.
Date published: 2025-12-25
Rated 5 out of 5 by from Nice product I really like this product especially when doing color correction.
Date published: 2025-12-25
Rated 5 out of 5 by from Hydration!!!! Actually so surprised at how well this pre shampoo treatment works! It’s very lightweight but provides an insane amount of hydration. This paired with the matching shampoo and conditioning treatment had my clients hair feeling stronger after one use!
Date published: 2025-12-25
Rated 5 out of 5 by from Excellent! I received this product for free. This product was excellent for evening porosity for vivid colors! Resulted in an even and beautiful canvas. Highly recommend!
Date published: 2025-12-24
Rated 5 out of 5 by from Game changer! This pretreatment is a game changer for highly processed / bleached hair! I find when I use this prior to bleaching there is much less breakage and the hair isn’t as damaged. It’s easy to apply, the consistency is light, and the smell is fairly neutral. I think it’s important to stack this with the rest of the line; the shampoo and follow with the masque.
Date published: 2025-12-24
Rated 5 out of 5 by from Amazing spray The detox spray really does detox your hair. I couldn’t believe the difference in the way my hair felt after one use. Highly recommend for any type of hair especially damaged hair.
Date published: 2025-12-24
Rated 5 out of 5 by from Love this line I received this product for free for my honest review. I absolutely love this pre shampoo. Its easy to use. I have short hair so a little goes a long way. I tried the shampoo first without the pre shampoo and it worked great. I was shocked at how much better everything worked with the pre shampoo. My shampoo worked so much better and my hair felt even better. I use this whole line once a week. My hair has never looked or felt better.
Date published: 2025-12-24
Rated 5 out of 5 by from Shiny, more manageable hair I'm not the typical L'Oréal user. I've tried the metal detox mask before. This time around I used the whole system. My hair feels great, shiny and seems more manageable being curly. Key point for the spray is to make sure it lathers before you put the shampoo over top.
Date published: 2025-12-24
Rated 5 out of 5 by from Game changer Adding this to my routine with the metal detox shampoo and mask really did make a difference. I have level 10 money pieces and the rest of my hair is level 1. I find keeping the level 10 bright and blonde has been challenging. I noticed a difference in the overall tone after using this system. The water in Florida isn’t forgiving as far as metals as concerned, this stuff definitely works!
Date published: 2025-12-24
Rated 4 out of 5 by from Good product This product sprayed nicely and was easy to go on the hair. Love that it can be used as a pretreatment for color or by itself. Gave a 4 as the smell of the product does have a strong men’s cologne smell to me.
Date published: 2025-12-24
Rated 5 out of 5 by from Amazing Love this it smells amazing and really gets everything off of the hair leaving a true clean pallet to work with
Date published: 2025-12-21
Rated 5 out of 5 by from Love! This product is a good to for me before I color and while im mixing the color its an assuring way to protect your color and the clients love the extra treatment
Date published: 2025-12-21
Rated 5 out of 5 by from Love it Love this spray for reviving dull hair and helping keep it healthy and shiny! Smells good too!
Date published: 2025-12-21
Rated 4 out of 5 by from So far so good! Good product - smells nice, we will see how it works long term!
Date published: 2025-12-20
Rated 5 out of 5 by from Great product Love this product. Really makes the hair feel like it’s cleaning and the buildup is removed without feeling stripped or dry.
Date published: 2025-12-20
Rated 5 out of 5 by from The Best! I don’t start a blonde service without this anymore. As a licensed stylist, I use L’Oréal Metal Detox Pre-Treatment Spray on every blonde client before color, balayage, or lightening, and it has completely changed how reliable my results are. Knowing it neutralizes metals inside the hair fiber before I apply color gives me total peace of mind behind the chair. What stands out most is how it helps protect the hair during lifting—less breakage, smoother processing, and far fewer surprises when it comes to tone. Blondes lift cleaner and finish exactly where I expect them to, without the dullness or shift that metals can cause. It’s a quiet hero in my color routine—no drama, just stronger hair and more consistent, beautiful blondes every single time. This is one of those products you don’t realize you need until you see the difference it makes. I received this product for free for my honest review
Date published: 2025-12-20
Rated 5 out of 5 by from LOVE Really truly cleanses the hair without stripping it. Bright blondes and super clean feeling hair. Love the system all together!
Date published: 2025-12-19
Rated 5 out of 5 by from Love I have been genuinely impressed with the L’Oréal Metal Detox Pre-Treatment Spray. From the first use, it feels like a true prep step rather than an optional add-on. The spray helps prime my hair before shampooing and noticeably enhances the detox process, especially when it comes to removing buildup from hard water. My hair feels cleaner and more refreshed after washing, without feeling stripped or dry. One of the biggest differences I have noticed is the brightness of my hair. After using the pre-treatment, my hair looks visibly more vibrant and reflective, as if dullness from mineral buildup has been lifted. It also leaves my hair feeling smoother and more manageable, which makes a noticeable difference in how it styles afterward. I did receive this product for free in exchange for an honest review, and all opinions shared here are my own. Overall, this spray has become a staple in my routine. It elevates the entire wash process and delivers consistent results, particularly for anyone dealing with hard water or buildup. I would confidently recommend it to anyone looking to improve hair clarity, brightness, and overall hair health.
Date published: 2025-12-19
Rated 5 out of 5 by from Pre-shampoo spray This pre spray for the shampoo didn't lather up. It smells really good. It worked well with the shampoo when I combined the two. I would recommend this product.
Date published: 2025-12-19
Rated 5 out of 5 by from A++++ Love this line! Really allows blondes to pop and give their full potential
Date published: 2025-12-19
  • y_2026, m_8, d_4, h_10
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_2, bvpage2n
  • co_hasreviews, tv_54, tr_285
  • loc_en_US, sid_loreal-professionnel-metal-detox-pre-treatment, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getReviews, 8ms
  • reviews, product