L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Mask 250ml
Price changes in the past 30 days
| May 31, 2026 | 23.50 € |
The L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Mask 250ml is an intensive cream treatment that controls frizz and disciplines hair for 2 weeks. It is suitable for those with unruly, frizzy, or difficult-to-manage hair.
What it is
An intensive treatment formulated with amino acid chains that penetrate the hair fiber. L'Oréal's professional technology acts on the hair structure to durably control volume and frizz, with visible results from the very first application.
Who it is for
Suitable for all hair types experiencing frizz, excessive volume, or difficulty in management. It works on natural, chemically treated, or humidity-exposed hair. Particularly effective on frizzy, curly, and rebellious hair that needs lasting discipline.
Key benefits
Deeply nourishes thanks to amino acids that rebuild the hair fiber. Controls frizz for up to 2 weeks when used with the Keratin Alpha Sleek shampoo and the Smooth Transformer. Provides immediate shine, improves combability, and reduces drying time.
Technology and active ingredients
The formula contains amino acid chains that bind to the hair's natural keratin, filling damaged areas of the cuticle and creating a protective barrier against humidity and external aggressors. The professional L'Oréal system guarantees salon-like results at home.
How to use
After shampooing, remove excess water. Apply the mask from mid-lengths to ends, avoiding the roots. Leave on for 5 minutes. Rinse thoroughly. For optimal results, complete the routine with the Mirror Sleek serum on towel-dried hair before blow-drying.
Expected result
Visibly smoother, more disciplined, and shinier hair from the first application. Frizz remains under control even in high humidity conditions. The hair fiber feels nourished, protected, and easier to manage every day.
Recommended pairings
For maximum effectiveness, use the mask as part of the complete Keratin Alpha Sleek routine: shampoo, Smooth Transformer, mask, and Mirror Sleek serum in sequence guarantee the 2 weeks of anti-frizz control stated in instrumental tests.
Frequently Asked Questions
How long does the anti-frizz effect last?
Up to 2 weeks with the complete routine (shampoo + mask + serum), according to instrumental tests after 4 applications.
Can I use it on colored hair?
Yes, the formula is safe for chemically treated hair and helps keep the fiber nourished.
How many times a week?
Two or three times depending on the level of frizz. For very dry hair, even with every wash.
Is conditioner needed afterward?
No, the mask replaces conditioner and offers a more intensive treatment. To maximize results, the Mirror Sleek serum is recommended as a final step.
Technical details
Size: 250ml
Texture: cream
Processing time: 5 minutes
Line: Keratin Alpha Sleek
Target: unisex
Manufacturer: L'Oréal Professionnel
Why buy from Planethair.it
Since 2000, we have been selecting professional products for hairdressers and end-users. 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 warranty. Free samples with every order.
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L'Oréal Professionnel Keratin Alpha Sleek Anti-Frizz Mask 250ml