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How to tame frizzy hair: discover the new L'Oréal Professionnel Keratin Alpha Sleek range

Apr 9, 2026, Míša

Have you ever dreamed of hair that stays perfectly smooth, sleek and shiny even in humid weather? That moment is finally here. L'Oréal Professionnel is introducing the new Série Expert Keratin Alpha Sleek range, taking anti-frizz care to the next level.

Forget compromises between sleekness and natural movement. This range does not just promise a short-term effect after styling, but is designed to deliver long-lasting smoothness, volume control and easier everyday styling. Powered by Keratin-Alpha Shaper technology and the strength of amino acids, it helps smooth the hair fibre, tame frizz and leave hair soft, shiny and more manageable. The result? Up to 2 weeks of smoothness and frizz control when used as part of the recommended routine.

Why it works?

What makes Keratin Alpha Sleek so special? Unlike conventional smoothing products, which often work only on the surface of the hair, this range works deeper within the hair fibre, at the Keratin Alpha level. This is where it helps tame, smooth and protect the hair’s overall appearance without weighing it down.

A beauty fact that may surprise you: Although the name of the range includes the word keratin, Keratin Alpha Sleek products do not actually contain keratin. Instead, L’Oréal Professionnel uses a technology that works at the Keratin Alpha level within the deeper structure of the hair fibre, helping to smooth, tame and protect the hair’s natural movement and shine.

The technology behind the range was designed to help:

  • smooth the surface of the hair fibre,
  • reduce frizz and unwanted volume,
  • make styling easier,
  • leave hair soft and shiny,
  • protect the results even in humid conditions.

A professional anti-frizz routine in 4 steps

If you want salon-like results, the key is a well-designed routine. Keratin Alpha Sleek works as a carefully crafted ritual, with each product playing its own role.

1. CLEANSE: Keratin Alpha Sleek Shampoo

The first step towards smoother hair is Keratin Alpha Sleek Shampoo. It gently cleanses while, most importantly, preparing the hair fibre to absorb the active ingredients used in the next steps of the routine. Even during washing, you will notice your hair feeling softer and becoming less prone to tangling.

2. ANTI-FRIZZ PROTECTION: Smooth Transformer

This is the true star of the range. Smooth Transformer is an intensive smoothing treatment that helps deliver up to 2 weeks of smoothness and frizz control. It is applied to the mid-lengths and ends after shampooing, left on, and then rinsed out.

3. HYDRATION: Keratin Alpha Sleek Mask

On days when you are not using Smooth Transformer, reach for the Keratin Alpha Sleek Mask. It nourishes the hair, leaves it soft and gives it a smoother-looking finish, without unnecessarily weighing it down.

4. SLEEK FINISH: Mirror Sleek Serum

The final touch is Mirror Sleek Serum, which adds shine, a sleek finish and protection against humidity and heat. It contains 5% Keratin Sealer, provides heat protection up to 230 °C, and helps protect hair even in humidity of up to 80%. For an even sleeker result, it is recommended to activate the serum with heat while blow-drying or straightening.

Why choose Keratin Alpha Sleek?

Frizz is often linked to an unruly hair structure, moisture in the air and demanding styling routines. This is exactly what the new L'Oréal Professionnel range is designed to address. It helps smooth and soften the hair, boost shine and reduce the time you would normally spend styling it.

One of its biggest advantages is that the result is not just visibly smoother hair, but also a greater feeling of control, softness and easier styling every day.

Who is this range ideal for?

  • those with frizz-prone hair,
  • those with unruly, dull and hard-to-manage hair,
  • women who want a smoother look without unnecessary weight,
  • anyone who wants to spend less time on their morning styling routine.

*GLAMOT TIP: To enhance the smoothing effect even more, activate the serum with heat. When blow-drying, use a paddle brush and direct the airflow from top to bottom, following the direction of hair growth. This will leave your hair looking even sleeker, shinier and more polished.

Discover the full L'Oréal Professionnel Keratin Alpha Sleek range at Glamot.com and treat your hair to professional care for long-lasting smoothness, shine and frizz control.


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