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L'Oréal Professionnel

Keratin Alpha Sleek Anti-Frizz Shampoo for Smooth Hair

4.8 · 183 reviews
from 4,460 ₽

What it is: A professional, sulfate-free shampoo that gently cleanses while smoothing and reinforcing hair keratin for long-lasting smoothness and frizz control.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Frizz- Shine- VolumizingKey Benefits: - Controls frizz and volume for a sleek finish- Cleanses and hydrates, leaving hair with an instant shine- Reshapes and smooths the hair fiberHighlighted Ingredients:- Keratin-Alpha Shaper and Amino-Acid Chains: A powerful complex that smooths the hair fiber to control frizz.Ingredient Callouts: It is vegan.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.Fragrance Description: A fresh and modern floral fragrance with powdery notes of cardamom and ginger, balanced by a warm, musky base of sandalwood and vetiver.Clinical Results: In an instrumental test after 4 applications of the Shampoo, Smooth Transformer, and Serum routine:- Hair was smooth with frizz and volume control for up to 2 weeksIn instrumental tests using the shampoo alone:- Hair was 76% more shiny- Breakage was reduced by 95%- Hair was 67% softer and 50% more hydrated

Design: 16.9 oz/500 ml

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What it is: A professional, sulfate-free shampoo that gently cleanses while smoothing and reinforcing hair keratin for long-lasting smoothness and frizz control.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Frizz- Shine- VolumizingKey Benefits: - Controls frizz and volume for a sleek finish- Cleanses and hydrates, leaving hair with an instant shine- Reshapes and smooths the hair fiberHighlighted Ingredients:- Keratin-Alpha Shaper and Amino-Acid Chains: A powerful complex that smooths the hair fiber to control frizz.Ingredient Callouts: It is vegan.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.Fragrance Description: A fresh and modern floral fragrance with powdery notes of cardamom and ginger, balanced by a warm, musky base of sandalwood and vetiver.Clinical Results: In an instrumental test after 4 applications of the Shampoo, Smooth Transformer, and Serum routine:- Hair was smooth with frizz and volume control for up to 2 weeksIn instrumental tests using the shampoo alone:- Hair was 76% more shiny- Breakage was reduced by 95%- Hair was 67% softer and 50% more hydrated

Customer reviews

5.0
verified purchase
Smooth like buttah

I received the Keratin Alpha Sleek Anti-Frizz Shampoo to test out, and honestly… I love it. I was a little nervous at first because products that promise to smooth frizz usually end up making my hair feel heavy or flat, but that wasn’t the case at all. My hair feels so soft, smooth, and healthy after using it. I’ve noticed way less frizz, even on humid days, and it leaves my hair looking shiny without feeling greasy. The scent is really nice too without being overpowering. I’ve only been using it for a short time, but I’m already impressed with the results. Definitely one of those products I wasn’t expecting to love as much as I do!

6/20/2026
5.0
verified purchase

I paired this with the matching anti-frizz mask and really liked the combo. The shampoo lathers well without making my hair feel stripped or overly dry afterwards, which happens to me with a lot of “sleek” shampoos. I have naturally wavy/curly hair and noticed my hair dried smoother with less puffiness and frizz, especially around the crown. It also made detangling much easier in the shower. The scent is salon-like without being overpowering. I still had texture/waves afterwards, just more controlled and softer looking. Overall, my hair looked noticeably more polished with very little effort

5/27/2026
5.0
verified purchase

I have long, straight hair that has gone through years of bleaching and heat styling, so I am always careful with the products I use. This shampoo cleanses very gently, but it still gives a deep clean and leaves my hair feeling fresh without stripping it or making it feel dry. After a few washes, my hair looked shinier and felt softer, smoother, and much easier to manage. It helps control frizz while keeping my hair hydrated, and my ends look healthier and less rough after styling. I also noticed my hair stays cleaner longer without feeling heavy or coated. The only thing I expected differently was the fragrance. Based on the description, I thought it would have a more noticeable scent, but it is actually very subtle and does not leave a strong smell in the hair. Overall, it performs really well and leaves my hair looking healthier, smoother, and more polished.

5/6/2026
3.0
verified purchase
Not my fav

Honestly, I don’t know the reason this shampoo in pair with the keratin alpha sleek mask made my hair less smooth than usually. But I’ve tried this duo couple of times and every time it was not the best result.

5/6/2026
5.0
verified purchase
My holy grail

This product and the entire system line has single handedly changed my hair health, look and feel. I've been dying to post about it. I use it about once maybe twice a week max as that's all the washes I usually require. The smell and smoothness and hydration lasts longer than any other system I've used. The smell is the first thing that hit me as soon as I opened it. It's like no other shampoo I've used. It smells like a high end fragrance that id love to have. I use it along with other products from the line for maximum effectiveness. It nourishes my hair and leaves it smooth and shiny and so hydrated. It cleans so well without stripping. This is something I'd highly recommend to any and everyone and I'd 100% buy over and over again.

5/1/2026
5.0
verified purchase

I love the shampoo. It has been a great addition to my hair care routine, especially in the summer months when it is very humid outside this shampoo keeps my hair and frizz and check and leaves it smooth and silky. I also do love the son of the shampoo in the clean it makes my hair feel.

7/21/2026
5.0
verified purchase
My hair is so much more softer and healthier

I've been using the L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Shampoo, and it leaves my hair feeling clean without stripping away moisture. It helps tame frizz, makes my hair feel smoother, and gives it a soft, healthy-looking shine. The formula lathers well, rinses easily, and has a pleasant scent that isn't overpowering. After a few washes, my hair feels more manageable and easier to style. Overall, it's a great shampoo for dry, frizzy hair.

7/9/2026
5.0
verified purchase
Amazing !! Salon quality for sure !

Such great product ! Anything from this brand has not failed me ..

7/2/2026
5.0
verified purchase
love it its a must

if you want silky healthy looking hair this is what you need for your hair care and it also smells amazing. My hair could smell for as long as I don’t wash my hair. It smells amazing. I am addicted to the smell. I love it and you can tell the difference about the frizz when I style my hair my hair has been looking like hair salon style lately because of this amazing shampoo

5/8/2026
5.0
verified purchase
Love it

Wow! This shampoo is seriously amazing! I am used to using higher end shampoos and they do nothing for my hair! This has helped my hair look and feel amazing, my hair is noticeably less frizzy and super sleek!

5/6/2026