Keratin Alpha Sleek Professional Hair Mask 250ml – Anti-Frizz Smoothing Treatment

Get salon-smooth results with the keratin alpha sleek mask 250ml by L'Oréal Professionnel.

This professional anti-frizz hair mask is enriched with Keratin-Alpha shapers and amino acid chains.

It deeply hydrates, smooths, and helps transform frizzy or unruly hair into soft, sleek, manageable strands.

Key Benefits

• Reduces visible frizz after just one use*
• Provides up to 3x less unwanted volume*
• Deeply hydrates and softens hair fibre
• Delivers instant shine lasting up to 5 days
• Improves hair softness from the first application
• Helps protect against breakage and damage
• Cuts styling time by up to 50%
• Alcohol-free & artificial colourant-free formula

Why This Hair Mask Works

Searching for a keratin hair mask for frizzy hair in the UK?

This salon-quality treatment supports smoother-looking hair with a lightweight, controlled finish.

• Intensive moisture and smoothing for dry, frizzy hair
• Long-lasting anti-frizz and volume control
• Improved manageability and softness
• Stronger, healthier-looking hair
• Professional results from home

Advanced Professional Formula for keratin alpha sleek mask 250ml

• Keratin-Alpha Shapers – smooth and refine hair structure
• Amino Acid Complex – strengthen and reinforce fibres
• Rich sensorial texture – deep conditioning with a luxurious feel

How to Use

1. After shampooing, apply evenly from mid-lengths to ends
2. Leave on for 5 minutes
3. Rinse thoroughly
4. For best results:
   • Use Smooth Transformer once weekly
   • Use the keratin alpha sleek mask 250ml on other wash days

Proven Results

• Visible frizz reduction after 1 use*
• Up to 3x less volume*
• Smoother, shinier hair with continued use
• Enhanced results when used as part of full routine

*Based on instrumental and consumer testing

Ideal For

• Frizzy, dry, or coarse hair
• Thick or high-volume hair types
• Chemically treated or keratin-treated hair
• Anyone wanting smooth, soft, manageable hair

Product Details

• Size: 250ml
• Brand: L'Oréal Professionnel
• Range: Serie Expert
• Type: Professional Smoothing Hair Mask

A reliable choice when you want smoothness, shine, and control without a heavy feel.

Use as part of your routine to maintain a sleek finish between styling days.

If you’re comparing options, this keratin alpha mask is designed for consistent results at home.

For best performance, apply evenly and rinse well after the full 5 minutes.

It suits regular wash days and pairs easily with your routine.