L'Oréal SERIE EXPERT Keratin Alpha Sleek Treatment 200mL
Delivers up to 5x Smoother Hair.
L'Oréal Professionnel Serie Expert Keratin Alpha Sleek Progressive Treatment 200mL
Achieve salon-smooth hair at home with L'Oréal Professionnel Serie Expert Keratin Alpha Sleek Progressive Treatment 200mL. This professional smoothing treatment helps reduce frizz, tame unwanted volume and leave hair up to 5x smoother with long-lasting shine and manageability.
Powered by Keratin Alpha-shaper Technology and Amino Acid Chains, the innovative formula works deep within the hair fibre to progressively improve smoothness with every use. Hair becomes softer, sleeker and easier to style, with results that continue to improve over time while helping maintain the hair's natural strength and movement.
Used as part of the Keratin Alpha Sleek routine, this weekly treatment delivers up to 2 weeks of smooth, frizz-controlled hair, making it ideal for anyone wanting professional smoothing results without compromising hair health.
Why You'll Love It:
- Progressive smoothing treatment with results that improve over time.
- Delivers up to 5x smoother hair.
- Helps reduce frizz by up to 2x.
- Provides up to 77% more shine.
- Controls unwanted volume and flyaways.
- Helps preserve the hair fibre while improving manageability.
- Reduces styling time for a smoother finish.
- Artificial colourant free and alcohol free.
- Suitable for all hair types.

Perfect For:
Frizzy, thick, unruly or hard-to-manage hair that needs long-lasting smoothness, enhanced shine and professional frizz control.
How To Apply Keratin Alpha Sleek Progressive Treatment:

HairByU Tip: This treatment delivers progressive results, so the more consistently you use it, the smoother and more manageable your hair becomes. For the best results, use it as part of the complete L'Oréal Professionnel Keratin Alpha Sleek routine.
Key Ingredients:
Aqua / Water / Eau, Cetearyl Alcohol, Cocos Nucifera Oil / Coconut Oil, Behentrimonium Chloride, Isononyl Isononanoate, Cetyl Esters, Parfum / Fragrance, Ethanolamine, Isopropyl Alcohol, Cysteine, Dimethicone, Hydroxyethylcellulose, Phenoxyethanol, Sodium Metabisulfite, Amodimethicone, Ascorbic Acid, Trideceth-10, Trisodium Ethylenediamine Disuccinate, Peg-100 Stearate, Rose Ketones, Steareth-6, Taurine, Trideceth-3, Glycerin, Butylene Glycol, Disodium Phosphate, Acetic Acid, Polysorbate 60, Sodium Phosphate, Carbomer, Sodium Lactate, Polysorbate 20, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7
- Progressive smoothing treatment with results that improve over time.
- Delivers up to 5x smoother hair.
- Helps reduce frizz by up to 2x.
- Provides up to 77% more shine.
- Controls unwanted volume and flyaways.
- Helps preserve the hair fibre while improving manageability.
- Reduces styling time for a smoother finish.
- Artificial colourant free and alcohol free.
- Suitable for all hair types.
| SKU | E4563900 |
| Model # | 3474637335526 |
| Barcode # | 3474637335526 |
| Brand | L'Oreal Professionnel Paris |
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