Transform frizzy, unruly hair with L'Oréal Professionnel Keratin Alpha Sleek Progressive Treatment. This professional smoothing treatment delivers progressive results with every use, helping hair become smoother, softer and easier to manage over time.

Why you’ll love it:

• Progressively smooths hair with continued use
• Helps reduce frizz and improve manageability
• Leaves hair feeling softer and smoother
• Enhances shine and a polished finish
• Professional treatment for long-lasting results
• Performance peaks after 4 weeks of regular use

Formulated with Keratin-Alpha Shaper and Amino-Acid Chains, this advanced treatment works to transform the hair fibre, helping create a sleeker, more controlled look with each application. Its progressive technology means the more consistently you use it, the smoother and more manageable your hair becomes.

Ideal as part of the Keratin Alpha Sleek routine, it helps maintain salon-smooth results while improving softness, shine and overall hair condition.

How to use:

Step 1: Use once a week after shampooing. Alternate with your regular hair mask on other wash days.
Step 2: Shake well before use.
Step 3: Section hair into two parts and apply evenly through lengths and ends.
Step 4: Use approximately 30–50g per application, depending on hair length and thickness.
Step 5: Leave on for 10–15 minutes, then rinse thoroughly.
Step 6: Follow with Keratin Alpha Sleek Mirror Sleek Serum for enhanced smoothing and shine.