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Keratin Alpha Sleek Smooth Transformer

Keratin Alpha Sleek Smooth Transformer is rated 4.6 out of 5 by 43.
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6.76 oz.
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What It Is

A professional-grade, semi-permanent smoothing treatment mask that transforms hair for up two weeks of unparalleled smoothness, shine, and frizz control.

What It Does

• Smooths and controls frizz for up to 2 weeks.*

• 6x smoother hair**

• 77% more shine***

• Long-lasting frizz & volume control

• Faster smooth styling****

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

 

*after 4 weekly uses of Smooth Transformer

**Smooth Transformer vs. before application

***vs. unwashed hair

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

What Else You Need to Know

This professional smoothing treatment is formulated with Keratin-Alpha Shaper and amino-acid chains to deliver salon-quality results. This is a breakthrough hybrid of texture and hair care. Contrary to classic conditioners or masks, it deeply penetrates inside the fiber and smoothes the hair at the keratin alpha level, the deepest level of hair. It is free from alcohol and artificial colorants, and suitable for all hair types including keratin-and color-treated. It is safe to use during a color appointment.

 

Note: This product has a technical smell due to a small amount of cysteine in the formula, which supports the anti-frizz, smoothing benefit.

1. Progessive treatment, use once a week after shampooing. Alternate with a hair mask on other wash days.

2. Shake the bottle well before use.

3. Section hair into two parts and apply evenly from lengths to ends on each section. Use 1 - 1.75 ounces, depending on hair thickness and length.

4. Leave on for 10–15 minutes, and then rinse thoroughly.

5. To activate the smoothing technology, blow-dry completely and use a flat iron. Use weekly for 4 uses, then once a month to sustain the frizz-control. Stop using if the hair feels dry.

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

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 Helps Keep My Hair Smooth I've been using Keratin Alpha Sleek Smooth Transformer before styling, and it helps keep my hair looking smoother and more controlled throughout the day. It cuts down on frizz and flyaways without making my hair feel sticky. My hair feels softer and looks more polished after using it.
Date published: 2026-06-11
Rated 3 out of 5 by from Pointless if not using heat Honestly, the Smooth Transformer is just the once-a-week goo you actually need if you want the Sleek line to do anything. You shampoo, slap it on for like 10-15 minutes, rinse, then you have to blow-dry and flat iron it or it doesn't really kick in. It keeps hair smooth, shiny, and not frizzy for a couple weeks, and it chills the puff so styling takes less time, but it's kinda pointless if you're not into heat.
Date published: 2026-06-10
Rated 4 out of 5 by from Decent Works really well but it's very stinky while in the hair. No matter what I did afterwards, the smell stuck around.
Date published: 2026-06-09
Rated 5 out of 5 by from Yes 100! Loveeeee this product! I really feel like my hair cuticle was smooth and my hair had less frizz. The smell isn’t as overpowering as the rest of the products.
Date published: 2026-06-09
Rated 5 out of 5 by from Whole system works well together This is a pretty good appraise, especially if you get it on sale. You could offer it as a mini Brazilian blowout treatment, obviously not as good but much faster and cheaper!
Date published: 2026-06-09
Rated 4 out of 5 by from working worked better than i expected. helped reduce volume and frizz. definitely a good system
Date published: 2026-06-09
Rated 3 out of 5 by from Just ok Helped with smoothing and humidity resistance. I didn’t like the amount of time necessary for the product to sit. The whole line has an off smell to me. Would not purchase
Date published: 2026-06-09
Rated 5 out of 5 by from Overall good product After using it a few times I do notice a difference! It does help keep the shine and maintain frizz and curls.
Date published: 2026-06-08
  • y_2026, m_6, d_13, h_13
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  • clientName_saloncentric
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  • reviews, product