L'Oreal Professionnel

L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Routine

Price history

Price changes in the past 30 days

May 31, 2026 67.50 €
Regular price 67.50 € Sale price 67.50 € Regular price 97.80 € Unit price 225.00 €  per  l
Sale 30.30 € (30.98%)
Tax included. 

💳 Paga in 3 rate da €22.5 con Scalapay o Klarna

The L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Routine is the complete professional kit for those who want to definitively say goodbye to frizz. The set includes the 300ml Shampoo, the 250ml Mask, and the 50ml Anti-Frizz Serum, three products formulated to work in synergy and ensure smooth, disciplined, and shiny hair from the very first application.

What the routine includes

Each product in the line has been developed with 5% Keratin Sealer technology, which seals the hair cuticle and blocks the moisture responsible for frizz:

Who it is for

This routine is designed for frizzy, wavy, curly, or unruly hair that tends to swell with humidity. It is suitable for natural, colored, or chemically treated hair. If you regularly use a hairdryer and straightener, the serum included in the kit offers concrete thermal protection with every styling.

Expected results

With continuous use of the complete routine, you can expect:

  • Visibly smoother and shinier hair after the first use
  • Frizz control for up to 72 hours, even in high humidity conditions
  • Softer, nourished, and heat-resistant hair fiber
  • Faster styling and results that last longer over time

How to use

Apply the shampoo to wet hair, massage, and rinse. Distribute the mask through the lengths and ends, leave on for 3-5 minutes, and rinse thoroughly. After blow-drying your hair, apply the serum from mid-lengths to ends without rinsing. For a definitive style, you can complete the routine with the Smooth Transformer.

Why choose the complete kit

Purchasing the complete routine means always having the three fundamental steps of the professional anti-frizz protocol available, with savings compared to buying individual products separately. It is also the ideal solution as a gift for those who want to start a professional home hair care regimen.

Why buy from Planethair

Planethair has been online since 2000 and was one of the first Italian e-commerce sites specializing in professional hair products. All products are original, purchased directly from official distributors. Our team consists of haircare experts, available to advise you on the most suitable routine for your needs.

Frequently asked questions

Are the products in the kit professional or travel size?

They are standard sizes for daily use: 300ml shampoo, 250ml mask, and 50ml serum. Quantities designed for extended home use.

Can I use this routine even if I have colored hair?

Yes, the Keratin Alpha Sleek line is compatible with colored and treated hair. The formula does not alter color and does not contain aggressive ingredients.

How often should I use the mask?

It is recommended 1-2 times a week instead of conditioner, or every wash for very frizzy or damaged hair.

Do I use the serum before or after blow-drying?

It can be used in both ways: on damp hair before blow-drying for thermal protection, or on dry hair for an immediate smooth finish.

Pair with: