L'Oréal Professionnel
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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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Keratin Alpha Sleek Anti-Frizz Shampoo
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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.

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Rated 5 out of 5 by from Frizz free shampoo Excellent shampoo , help to control thr frizz and feel your hair smooth
Date published: 2026-06-17
Rated 5 out of 5 by from Love how it smells It smells amazing, leave a beautiful shine and softness.
Date published: 2026-06-17
Rated 5 out of 5 by from New product added to my rotation! I had the experience to finally test one of L'Oréal's prestigious hair care products. I received the full line by Salon Centric through one of their promotional partners; BzzAgent, and my experience was positive and exceeded my expectations. It's been a while that every trip I made into Salon Centric I have had my eye on this L'Oréal line specifically.. And although I mulled back and forth for a long time which exact one within this product lineup I felt was best for my hair type and density, I used the Keratin Alpha Sleek Anti-Frizz shampoo. I truly felt a difference in the overall softness in my hair after just one use. My curl definition was so much smoother and my hair style lasted longer. After using it further, I felt that the product has very luxurious and silky feel to it even while shampooing. It lathers amazing, and the scent of the shampoo is nothing short of invigorating. I would 100% recommend this shampoo product to anyone in need of something for unruly curls and frizz, and also just for supporting the sleek look of a hot tool styled hairstyle. After completing a several week course this shampoo, I have added this to my regular rotation! I will try another product within the same line!
Date published: 2026-06-16
Rated 5 out of 5 by from Clean Healthy Hair. Thank you L'Oreal for allowing me to try your Keratin Alpha Sleek Shampoo in exchange for my honest review! I utilized the shampoo with the entire sleek line and was impressed with all the products. In regards to the shampoo, The Keratin Alpha Sleek shampoo has a fresh floral type scent, provides a good lather, and rinses clean. The hair is left feeling clean and health, not stripped and dried out. I would continue to use the product in the future.
Date published: 2026-06-15
Rated 4 out of 5 by from strong scent I received this product from BzzAgent to review. Very strong floral scent IMO..client didn't mind it said it smelled like perfume. Nice lather. Used after color and hair felt clean. I used with as a system and client felt her hair was smoother than just using regular shampoo.
Date published: 2026-06-13
Rated 5 out of 5 by from Impressive smoothing capabilities! I was really impressed with this shampoo and the entire Keratin Alpha Sleek line overall. I have very coarse, frizzy, 2C textured hair, and I noticed an improvement almost immediately compared to the products I normally use in my routine. My hair felt noticeably softer, smoother, and shinier and even by day 4, I was waking up with significantly less frizz. I absolutely loved the results!
Date published: 2026-06-13
Rated 4 out of 5 by from 4/5 stars. Great for the girlies who experience frizzy, dry ends that need some taming. Better for medium-thick/coarse hair as it os a tad heavy and may weigh down someone with hair thats fine/thin. Smells good but on the stronger size.
Date published: 2026-06-12
Rated 4 out of 5 by from Shampoo works It is a nice shampoo! It lathers well, smells good, and the system as a whole does leave the hair pretty soft and smooth. I like the idea of the set and it all seems to work well, my only complaint is the treatment smells soooo bad, and it does linger in the hair a bit. The client I used it on didn't seem to mind it, but when I tried it on myself I definitely did mind. I'm not sure if the smell would prevent me from using it in the future.
Date published: 2026-06-12
Rated 4 out of 5 by from I like it! It’s really good if you have thick course hair! I feel like if your hair was in the finer side it might be too heavy. It feels so smooth even a week later!
Date published: 2026-06-10
Rated 3 out of 5 by from Ok shampoo So it actually chills the frizz and adds gloss without killing your curls, it seems it cuts blow-dry time in half, but you gotta pair it with the weekly mask and hit it with heat or it's just an okay gentle shampoo, but it kind of has irritated my scalp.
Date published: 2026-06-10
Rated 4 out of 5 by from Great thick rich lather I like the thickness and rich lather this shampoo has. Makes my hair really smooth and shiny has a bit of a strong scent. I have used it with the whole system and it does keep my hair frizz free.
Date published: 2026-06-09
Rated 4 out of 5 by from Nice shampoo I really like the texture and results of this shampoo. Four stars for the overpowering strong scent. It’s way too much for me and it stays throughout the day.
Date published: 2026-06-09
Rated 5 out of 5 by from Good with overall smoothing system I love that is comes with a pump. It’s like a mini keratin Brazilian treatment if you use this whole system like it’s designed. It’s a lot of steps but a really good price.
Date published: 2026-06-09
Rated 4 out of 5 by from was good worked better than i expected. helped reduce volume and frizz. definitely a good system
Date published: 2026-06-09
Rated 5 out of 5 by from Wonderful! I LOVE this!! Used it on my client with coarse thick hair and her hair was sooo smooth and shiny!
Date published: 2026-06-08
Rated 5 out of 5 by from Pleasant surprise I've been using this system for a few weeks now and I can honestly say my hair feels sleeker and more manageable. I live in a high humidity area and I can tell a difference in the smoothness of my hair after being outside. I also love the scent of these products!
Date published: 2026-06-08
Rated 5 out of 5 by from Sleek system! Great Shampoo to go with the Keratin alpha sleek anti- Frizz collection! Works well in conjunction with the rest of the system. Being someone who has frizz prone hair this is definitely a keeper! I did receive this product in exchange for my professional and honest review.
Date published: 2026-06-08
Rated 4 out of 5 by from A keeper I love how this product smelled, It helped keep my hair smooth, style faster and less frizz
Date published: 2026-06-08
Rated 5 out of 5 by from Great frizz shampoo It does what it says. Reduced frizz (I have naturally curly hair), added shine and worked great with the leave in treatment
Date published: 2026-06-08
Rated 4 out of 5 by from frizz control I used this as a system. The shampoo is great nice lather decent smell. The conditioner is creamy yet lightweight and definitely leaves the hair smoother. The masque is heavier and ferls more like a deep conditioning service. The serum was probably my least favorite. It left my hair feeling slightly coated but still smooth. I have finer hair and thicker hair may not experience the same coated feeling. Overall its a great line and if uou live in a humid area it is great for frizz control
Date published: 2026-06-07
Rated 5 out of 5 by from Sleek! After using it a few times I do notice a difference! It does help keep the shine and maintain frizz and curls.
Date published: 2026-06-03
Rated 5 out of 5 by from Fantastic! This anit-frizz shampoo works like a dream, especially in conjunction with the conditioner in the alpha sleek line. Cleanses well, while aiding in smoothing and manageability! Fragrance is nice and light.
Date published: 2026-06-02
Rated 5 out of 5 by from Hair has less frizz and volume reduction Keratin Alpha Sleek Anti-Frizz shampoo helps reduce frizz dramatically. Hair looks shiny and healthy after one use. Noticed a difference right away. These products have a great scent and a nice creamy consistency.
Date published: 2026-06-02
Rated 4 out of 5 by from Nice Its a nice creamy shampoo that as a pleasant smell to it as well.
Date published: 2026-06-01
Rated 5 out of 5 by from Great system! This system is amazing! The shampoo has a light lather, smells kind of musky, in a pleasant way. The masque is not heavy at all, so can be used even for fine hair. The treatment does exactly what it says by eliminating frizz but doesn’t weigh the hair down. I love that the serum is a spray, so it makes for an even application. This system is also great for curly hair in that it reinforces the curl structure while still taming the frizz.
Date published: 2026-05-30
Rated 4 out of 5 by from Leaves the hair soft and shinyy I received this product line in exchange for a review. The smell of shampoo is nice. It is a creamy shampoo and lathers nicely so a little goes a long way. It helps to soften the hair and prepare it for the next step in the line. The hair feels soft after the shampoo but not heavy even on my fine hair clients.
Date published: 2026-05-30
Rated 5 out of 5 by from So moisturizing and smells so good I really love the results of the shampoo in this line. All of my clients live the smell and it has a great lather. Very concentrated so a little goes a long way.
Date published: 2026-05-29
Rated 5 out of 5 by from Amazing! I love this whole system! It made my clients hair feel super sleek and removed the frizz. It makes great for a blowout style, and keeps your hair frizz free. It almost reminds me of a keratin treatment for smoothness. Definitely a must try!
Date published: 2026-05-29
Rated 5 out of 5 by from I’ve been using the Keratin Alpha Sleek Shampoo It lathers well and helps calm frizz while still leaving the hair lightweight and manageable. I wasn’t a fan of the smell. I’ve noticed the hair feels smoother, shinier, and easier to style after using it — especially on dry, color-treated, or overprocessed.
Date published: 2026-05-29
Rated 5 out of 5 by from Amazing First of all, I have unmanageable, dry, hair. This shampoo has been a miracle for me since my hair has some damage from having my hair colored and highlighted for years. So I always deal with frizzy, dry hair that is flat and limp and since I color treat my hair i always look for products that will preserve my color during washes. The first time I tried this, shampoo, and effectively rising it from my hair. It felt so soft even before I rinsed with conditioner. It never felt so soft before, ever. It has transformed my hair for the better. Not only making it feel more healthier but my hair color was bright and vibrant and so much easier to manage and style. I’ve never been happier. I’m extremely impressed and pleased with the results. I highly recommend it!
Date published: 2026-05-28
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  • loc_en_US, sid_loreal-professionnel-keratin-alpha-sleek-anti-frizz-shampoo, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
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