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Our Head of Content shares her complete L'Oreal Professionnel Metal Detox review.

Hard Water Was Wrecking My Hair: This Detoxifying Trio Brought It Back to Life

Are minerals and heavy metals in your water affecting your hair? One writer tries L’Oréal Professionnel Serie Metal Detox to see if it’s the solution to her hard water woes.

I live in New York City, where I’m dealing with hard water. I can handle a lot of New York’s famously hard things—like finding an apartment with a washer and dryer and hailing a cab in the rain—but the hard water is something I wasn’t down to deal with. So, when I was introduced to the L’Oréal Professionnel Serie Metal Detox Shampoo and Hair Mask courtesy of the brand, although I was skeptical of its detoxing abilities, I was desperate to try anything.

The thing about hard water is that it can really mess with your hair. The minerals and heavy metals in it can cause your hair to become dry, brittle, brassy, and dull. Another not-great side effect: It can leave your scalp feeling itchy and flaking. After dealing with postpartum hair loss and breakage last year, I was not jazzed about returning to that dark place because of my zip code.

My chest-length long hair is really thick and the weight of my locks turns my naturally soft waves into a chaotic mess of frizz that I usually turn to my plethora of anti-frizz products for.

However, after a month of testing out the L'Oréal Professionnel Metal Detox Shampoo and boosting hydration every few washes with the L'Oréal Professional Metal Detox Mask, am I fully sold on the duo’s powers to keep my hair metal-free and smooth. When Metal Detox Oil was added to the line, I integrated the lightweight leave-in oil into my long hair routine for an extra boost. Keep reading for my full review and why, for the first time in my life, I am looking forward to wash day.

What Does Metal Detox L'Oréal Do?

Hard water can make good hair days hard to come by. (A friend of mine once resorted to using bottled water before a big event because she was desperate to escape the havoc hard water was wrecking on her hair.) L’Oréal Professionnel Serie Expert Metal Detox is here to help. If your hair is looking dull and your post-salon color has lost its vibrancy, the cause may be the metals in your water taking a toll on your hair.

This three-step system is designed to detoxify hair and neutralize metals trapped inside the hair fiber to protect the vibrancy of your hair color, while maintaining the softness and nourishment you love. With its patented technology, this formula envelops hair in a nourishing lather. Bring life back into your hair with this new system and get the softness and shine you won’t stop getting compliments on.

Serie Expert Metal Detox Shampoo
L'Oréal Professionnel

Serie Expert Metal Detox Shampoo

A sulfate-free anti-metal cleansing shampoo that revitalizes color-treated hair.

Old price New price $35.00


L'Oréal Professionnel Serie Expert Metal Detox Shampoo

One of the best things about this omg-worthy shampoo is that it is suitable for all hair types and textures—making it a thoughtful guest bathroom addition if you have hard water. It’s even color-safe! The shampoo’s highly conditioning sulfate-free technology actually helps your hue last longer. With regular use hair is stronger, 2x shinier*, and has 87% less breakage** You’re left with It’s a game-changer for anyone looking to detoxify their hair from metals to bring life back to their strands!

Serie Expert Metal Detox Mask
L'Oréal Professionnel

Serie Expert Metal Detox Mask

An anti-metal mask that protects color-treated hair against metal fading.

Old price New price $48.00


L'Oréal Professionnel Serie Expert Metal Detox Mask

Remember that postpartum hair loss I mentioned? After seeing my naturally my thick locks shed and break for the first time ever, I really began to see my haircare routine as an opportunity for self-care. Enter: The L'Oréal Professionnel Serie Expert Metal Detox Mask. It protects the hair fiber from particle deposits. Hair is instantly smoother, softer, and more nourished. It’s also sulfate-free, color-safe, and suitable for all hair types. This mask is the perfect follow-up to the Metal Detox Shampoo to really double down on detoxifying the hair from metals.

Metal Detox Oil


L'Oréal Professionnel

Metal Detox Oil

A lightweight leave-in oil that shields against heat, metals, damage, and color fading as it boosts shine.

Old price New price $35.00
One size available
1.6 fl oz


L'Oréal Professionnel Serie Expert Metal Detox Oil

In the months since my review of the shampoo and conditioner, my friends have stopped asking me what I’m doing to my hair because I’ve waxed poetically about the benefits. When the brand launched the oil, they sent me a sample to work into my Metal Detox regimen and test its unique powers for myself. I’ve dabbled with hair oils over the years but never stuck with anything consistently. The biggest (and most pleasant) surprise for me was how quickly the oil was absorbed into my post-blowout hair. When I styled soft waves in my hair, I noticed they were a little bouncier—and felt more nourished.



My L'Oréal Professionnel Metal Detox Review

I’ve spent the last year-ish transitioning my hair from highlighted bright blonde back towards it’s natural light brown shade. While there is a bit of color left at the ends, my stylist has been using a gloss the neurtralize it, making the different shade barely noticeable. So while I am not running to the salon for regular color like I used to, it’s important to call out how color-friendly the Metal Detox Shampoo and Hair Mask duo are for those who color their hair.

When the samples of the Metal Detox Shampoo and Hair Mask arrived, I committed to using them for two weeks, figuring I would have to up my anti-frizz game during my trial. Well, it’s been six weeks and I can honestly say I am never looking back.

I use a quarter-size dollop of the shampoo once every two or three days and I love how it instantly lathers into a rich foam. After shampooing my hair, I give it a good, worry-free rinse because I know the creamy cleanser will continue to detoxify my hair from the hard water. Then, I gently squeeze out the excess water from the ends of my long hair.

When I have time for a mask, I scoop out a small amount of the mask and use the rich texture to coat my hair from mid-shaft downwards, concentrating on my extra-dry ends. Three to five minutes later, I like to use a cool rinse to wash out the mask. I won’t lie: I have become mildly obsessed with how smooth my hair is immediately after rinsing out the mask.

I recently started incorporating the oil and find even with my thick and long hair, two pumps is enough to give my mid-shaft and ends powerful frizz protection and a boost of just-from-the-salon shine. At the advice of the brand, I warm the oil in my hands before applying it, which I find helps give me an even distribution. I mainly incorporated this into my routine after a blowout, but I love that it offers heat protection for towel-dried hair, too.

Before the shampoo and conditioning mask entered my routine, I would use seven to 10 spritzes of a lightweight defrizzing oil on my damp hair before brushing out the tangles. Now, my hair only needs three to four spritzes of this innovative oil.

Overall, my hair, like my mood on wash day, is light and bouncy. And that friend who used bottled water to wash her hair? I already ordered her a set of this trio.



Looking for my detoxifying products to refresh your hair care routine? Shop to make lack-luster strands a thing of the past.

*Instrumental test after Metal Detox Shampoo + Mask
**Instrumental test: Metal Detox pre-treatment + technical procedure + shampoo + mask.
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