L'Oréal Professionnel Keratin Alpha Sleek: straight and controlled hair for 2 weeks

Frizz, unmanageable volume, and the time spent straightening hair every morning can quickly become a real hassle. With Keratin Alpha Sleek, L'Oréal Professionnel offers a routine designed to progressively transform the appearance of the hair fiber and deliver smoother, softer, and easier-to-style hair.

The range is based on a technology combining Keratin Alpha-shaper and amino acid chains, designed to act at the level of alpha-keratin, the hair's major structural protein. The goal: to smooth the hair fiber, control frizz and volume while maintaining natural movement.

A technology designed for unruly hair

Alpha-keratin constitutes an essential part of the hair's internal structure. It contributes to its shape, strength, and elasticity.

Keratin Alpha Sleek technology targets this structure to achieve more disciplined and smoother hair. According to L'Oréal Professionnel, the routine can provide up to 2 weeks of frizz control and reduce daily styling time by half, based on instrumental tests performed with the complete routine.

The brand also announces 5 times more softness/smoothing after applying the Smooth Transformer and 2 times less frizz after using the complete routine, according to the instrumental tests mentioned on its website.

A complete 4-step routine

To fully benefit from Keratin Alpha Sleek technology, L'Oréal Professionnel offers a routine composed of several complementary products.

1. Keratin Alpha Sleek Shampoo

The first step in the routine, the shampoo gently cleanses the hair fiber while contributing to hair softness and shine.

Its formula is suitable for all hair types and claims several benefits: anti-frizz action, smoothing effect, and shine. L'Oréal Professionnel also indicates that the shampoo helps control volume and leaves hair silky and hydrated.

Size: 300 ml

2. Keratin Alpha Sleek Smooth Transformer

A key step in the routine, the Smooth Transformer is the smoothing treatment designed to progressively transform the hair fiber.

It helps control frizz and volume and provides a lasting feeling of softness. L'Oréal Professionnel recommends incorporating it regularly into the routine to maintain results.

3. Keratin Alpha Sleek Mask

On days when the Smooth Transformer is not used, the mask complements the routine by providing nourishment and care to the hair fiber.

The goal is to deeply nourish the hair while contributing to strengthening its keratin.

Size: 250 ml

4. Keratin Alpha Mirror Sleek Serum

Last step: the serum adds the finishing touch to the routine.

It helps smooth and seal the hair fiber for a soft and shiny finish. It also offers thermal protection up to 230°C and humidity protection up to 80%, according to instrumental tests communicated by L'Oréal Professionnel.

Size: 50 ml

Who is Keratin Alpha Sleek for?

The range is presented by L'Oréal Professionnel as suitable for all hair types, especially for those who wish to:

• reduce frizz;
• discipline voluminous hair;
• achieve smoother hair;
• facilitate daily styling;
• add more softness and shine;
• protect hair when using heating tools.

How to incorporate Keratin Alpha Sleek into your routine?

For a complete routine, start with the Keratin Alpha Sleek Shampoo, then use the Smooth Transformer as a smoothing treatment. On other wash days, the Mask can take over to nourish the hair.

Finish with the Mirror Sleek Serum, then activate the technology with heat: blow-drying or using a straightener. L'Oréal Professionnel specifically recommends using AirLight Pro or SteamPod for this thermal activation step.

Keratin Alpha Sleek: The Essentials

With Keratin Alpha Sleek, L'Oréal Professionnel focuses on a comprehensive approach to smoothing and frizz control. Rather than limiting itself to a temporary cosmetic action on the surface, the technology claimed by the brand targets the alpha-keratin structure to obtain hair that is easier to discipline and style.

The desired result: smoother, softer, shinier, and controlled hair, while maintaining its natural movement.

Sources

• L’Oréal Professionnel Belgium – Keratin Alpha Sleek
• L’Oréal Professionnel Belgium – Keratin Alpha Sleek Range
• L’Oréal Professionnel Belgium – Keratin Alpha Sleek Shampoo
• L’Oréal Professionnel Belgium – Keratin Alpha Mirror Sleek Serum