This is L'Oréal Professionnel shampoo, sorted by concern, from Metal Detox for damaged hair to Vitamino Color for glossy, colored hair. The masks and the pre-shampoo that make each salon line work harder are included.
L'Oréal Professionnel Shampoo, the Salon Lines Explained Concern by Concern
In 1909 a young chemist named Eugène Schueller started selling a hair dye he had formulated himself, which the company still describes as the first harmless hair dye. He first called the business the French Harmless Hair Dye Company, then shortened it to L'Oréal, a play on 'Auréole', a hairstyle of the day. I love that detail, because it means the biggest name in beauty started with hair. L'Oréal Professionnel is the salon side of that story, and it counts the cold perm and the hair level depth scale colorists still use among its firsts. This edit is about L'Oréal Professionnel shampoo specifically, sorted by concern, and the first row covers the four most common ones. Metal Detox, which launched in 2021, is built around the idea that metal deposits picked up from water can fade color and roughen hair, and it is where I would start if bleach has left your lengths feeling like straw. Absolut Repair Molecular is the bond building pick. Keratin Alpha Sleek is for frizz, and Vitamino Color Spectrum keeps colored hair shiny.
Four shampoos, four concerns
Metal Detox Sulfate Free Repair Shampoo for Dry, Damaged Hair
L'Oréal Professionnel
$40
Absolut Repair Molecular Shampoo for Bond Building
L'Oréal Professionnel
$49
Keratin Alpha Sleek Anti-Frizz Shampoo for Smooth Hair
L'Oréal Professionnel
$49
Vitamino Color Spectrum Color Protecting Shine Shampoo
L'Oréal Professionnel
$49
More concerns, more bottles
The second row is for more specific hair. Pro Longer is for lengths that thin out toward the ends, and it is formulated to reduce the look of split ends while you grow your hair out. Curl Expression removes buildup while it adds moisture, made for patterns from wavy to coily. Absolut Repair is the gentler everyday sister of the molecular line, nourishing rather than intensive. The Vitamino Color Spectrum wash for blondes neutralizes yellow, and like any purple shampoo it works best about once a week, left on for two to five minutes. Rotate it with your regular wash rather than replacing it.
Before and after the wash
The last row is where the line pays off. The Metal Detox pre-shampoo goes on wet hair before you shampoo, a step that sounds fussy and takes two minutes. The Metal Detox mask follows it after rinsing, and together they are the routine I would hand anyone coming off a big lightening appointment. The Absolut Repair Molecular mask uses peptides for damaged hair, and the Keratin Alpha Sleek mask is the one for humid weeks when frizz wins. What I would skip is using a rich hair mask every wash on fine hair. Once a week is enough, and more just weighs it down.
Pre-shampoo and masks
Metal Detox Repair Pre-Shampoo Treatment for Dry, Damaged Hair
L'Oréal Professionnel
$40
Metal Detox Repair Hair Mask for Dry, Damaged Hair
L'Oréal Professionnel
$52
Absolut Repair Molecular Hair Mask for Bond Building
L'Oréal Professionnel
$52
Keratin Alpha Sleek Anti-Frizz Hair Mask for Smooth Hair
L'Oréal Professionnel
$52
The short version
Start with the concern, not the bottle. Damaged or bleached hair goes to Metal Detox, frizz goes to Keratin Alpha Sleek, and color goes to Vitamino. Get the shampoo and the matching mask before you add anything else, and give them a month. The salon side of L'Oréal was built for professionals, so ask your colorist which line they use at the bowl, because they usually have an opinion.
If you want the wider professional line beyond these bottles, I covered it in L'Oréal shampoo, the professional line.
