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Keratin Alpha Sleek Anti-Frizz Shampoo

Keratin Alpha Sleek Anti-Frizz Shampoo is rated 4.7 out of 5 by 60.
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16.9 oz.
#E4565900
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What It Is

A professional, sulfate-free shampoo with an ultra-creamy texture that gently cleanses while smoothing and reinforcing hair keratin for long-lasting smoothness and frizz control.

What It Does

• Smooths fiber by acting on keratin naturally found in hairs outer cuticle layers

• 6x smoother hair*

• Immediate frizz & volume control

• 28% less frizz**

• Suitable for all hair types, even color or keratin-treated

 

* System of shampoo, smooth transformer, and leave-on vs. before application

** vs. non-conditioning shampoo

***vs. unwashed hair

**** vs. non-conditioning shampoo when using flat iron

What Else You Need to Know

This professional formula is powered by Keratin-Alpha Shaper and amino-acid chains to transform your hair. This shampoo is free of sulfated surfactants, artificial colorants, and alcohol.

Apply evenly to wet hair. Lather and rinse thoroughly. For best results, follow with the L'Oréal Professionnel Keratin Alpha Sleek Smooth Transformer or Mask, then the Serum.

AQUA / WATER / EAU • SODIUM COCOYL ISETHIONATE • DISODIUM LAURETH SULFOSUCCINATE • GLYCOL DISTEARATE • SODIUM LAURYL SULFOACETATE • SODIUM LAUROYL SARCOSINATE • GLYCERIN • PARFUM / FRAGRANCE • DECYL GLUCOSIDE • COCAMIDOPROPYL BETAINE • COCO-BETAINE • PPG-5-CETETH-20 • DIVINYLDIMETHICONE/DIMETHICONE COPOLYMER • AMODIMETHICONE • SODIUM HYDROXIDE • CITRIC ACID • POLYQUATERNIUM-7 • CARBOMER • POLYQUATERNIUM-10 • SODIUM BENZOATE • SODIUM CHLORIDE • PEG-55 PROPYLENE GLYCOL OLEATE • PROPYLENE GLYCOL • SALICYLIC ACID • BENZOIC ACID • TETRAMETHYL ACETYLOCTAHYDRONAPHTHALENES • POLYSORBATE 21 • LINALYL ACETATE • CARVONE • CITRUS LIMON PEEL OIL • TRIDECETH-6 • LIMONENE • COUMARIN • LINALOOL • CITRUS AURANTIUM BERGAMIA PEEL OIL • BUTYLENE GLYCOL • C12-13 ALKETH-23 • C12-13 ALKETH-3 • PINENE • CETRIMONIUM CHLORIDE • JUNIPERUS VIRGINIANA OIL • PHENOXYETHANOL • SODIUM LACTATE • TAURINE • POLYSORBATE 20 • PALMITOYL TRIPEPTIDE-1 • PALMITOYL TETRAPEPTIDE-7

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 Loved it! I absolutely loved this product it has made my hair so soft smooth and looking and feeling healthy!
Date published: 2026-06-28
Rated 5 out of 5 by from Would definitely buy again This has taken over as my new favorite shampoo. A little bit goes a long way. It leaves my hair smooth and detailed and pretty frizz free considering I live in a humid area.
Date published: 2026-06-23
Rated 5 out of 5 by from LOVE this product line! This line is amazing and I’m loving my hair. I have had so many compliments. It smooths the hair and gives volume. Unlike any product I have used and I’m a product guru. Highly recommend this. BTW, I have shoulder length fine hair medium density and waves. I do beach waves most of the days and it gives an amazing sleek and bouncy result.
Date published: 2026-06-21
Rated 5 out of 5 by from Love this shampoo! This is a great shampoo. It lathers nicely and leaves the hair clean with one wash. I’ve been using it on my clients who come in after Brazilian blowouts. It helps to keep their keratin treatment from falling out too early. Very satisfied. I received this product at no charge in exchange for my honest review.
Date published: 2026-06-19
Rated 4 out of 5 by from Great! Truly a great product if you have frizzy thick or corse hair! This shampoo works wonders on my thick haired frizzy haired clients! It smooths the cuticle in a perfect way!
Date published: 2026-06-19
Rated 5 out of 5 by from Must buy Best shampoo around for frizz and shine! Smells amazing. This is also light enough to use on fine hair without weighing it down.
Date published: 2026-06-18
Rated 5 out of 5 by from Love. Works amazing with the system. My hair has never felt better.
Date published: 2026-06-18
Rated 5 out of 5 by from Reduce frizz The Keratin Alpha Sleek Shampoo effectively cleanses the hair while maintaining moisture and smoothness. It helps reduce frizz, adds shine, and leaves hair feeling soft and manageable. The formula is gentle enough for regular use and works particularly well for dry, damaged, or chemically treated hair. A great choice for achieving sleek, healthy-looking hair.
Date published: 2026-06-18
  • y_2026, m_7, d_29, h_9
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_1, bvpage1
  • co_hasreviews, tv_5, tr_55
  • loc_en_US, sid_loreal-professionnel-keratin-alpha-sleek-anti-frizz-shampoo, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getReviews, 3ms
  • reviews, product