L'Oreal Professionnel

Anti-Frizz Keratin Alpha Sleek Kit L'Oréal Professionnel 4 Products

Price history

Price changes in the past 30 days

June 07, 2026 96.00 €
Regular price 91.00 € Sale price 91.00 € Regular price 130.40 € Unit price 303.33 €  per  l
Sale 39.40 € (30.21%)
Tax included. 

💳 Paga in 3 rate da €30.33 con Scalapay o Klarna

The L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Routine is a complete system that reprograms the hair fiber at the alpha-keratin level. Designed for those with frizzy and unruly hair that requires lasting control and reduced styling time.

What the routine contains

The kit includes four professional products that work in synergy: the Sulfate-free Shampoo 300ml, the Smooth Transformer 200ml, the Mask 250ml, and the Mirror Sleek Serum 50ml. Each product guarantees visible results for up to 2 weeks.

Who is it for?

This routine is suitable for frizzy, unruly, and difficult-to-manage hair. It works on all hair types that need discipline, frizz control, and reduction of unwanted volume. Particularly effective for those who want to reduce blow-drying time.

Main benefits

The system guarantees frizz control for up to 2 consecutive weeks. It reduces styling time, allowing you to achieve smooth and disciplined hair in less time. Hair is soft, shiny, and protected from humidity.

Measurable results

The patented technology acts on the alpha-keratin structure, temporarily modifying the shape of the hair fiber. This process ensures a lasting smooth effect without permanently altering the hair structure.

Keratin Alpha Technology

The patented Keratin Alpha innovation reprograms the hair fiber at a molecular level. Alpha-keratin represents the fundamental protein structure of hair. By acting at this level, the treatment temporarily modifies the configuration of proteins to achieve a prolonged disciplining effect.

How to use

First step: apply sulfate-free shampoo to wet hair, massage gently, and rinse. The formula cleanses without damaging the fiber.

Second step: distribute the Smooth Transformer treatment on lengths and ends, leave on for 15 minutes, and rinse. Recommended once a week.

Third step: apply the mask after shampoo for an intensive treatment. Leave on for 5-10 minutes before rinsing.

Fourth step: on towel-dried hair, distribute a few drops of Mirror Sleek serum on lengths and ends. Do not rinse. Proceed with drying.

Final result

Hair appears visibly smoother, more disciplined, and shinier. Frizz is controlled even in high humidity conditions. The style lasts longer and takes less time to achieve. Hair maintains natural softness and movement.

Frequently asked questions

How long does the anti-frizz effect last?
Frizz control is guaranteed for up to 2 weeks with regular use of the complete routine.

Can I use the products separately?
Yes, each product can be used individually. However, maximum effectiveness is achieved by using the complete routine in sequence.

Is it suitable for colored hair?
Yes, the sulfate-free shampoo formula is gentle and respects color. The system protects treated hair fiber.

How much product is needed per application?
The amount varies depending on hair length. For medium hair, 2-3 pumps of shampoo, a small amount of treatment and mask, and 2-3 drops of serum are sufficient.

Technical details

Content: Keratin Alpha Sleek Shampoo 300ml, Keratin Alpha Sleek Smooth Transformer 200ml, Keratin Alpha Sleek Mask 250ml, Mirror Sleek Serum 50ml
Line: L'Oréal Professionnel Keratin Alpha Sleek
Hair type: frizzy, unruly, undisciplined
Shampoo formulation: sulfate-free
Technology: Patented Keratin Alpha
Effect duration: up to 2 weeks

Why buy from Planethair.it

Since 2000, we have been selecting professional products for hairdressers and end customers. The first Italian e-commerce specialized in salon brands, with over 25 years of experience and dedicated pre and post-sales assistance. Original L'Oréal Professionnel products with official guarantee. Free samples with every order.