Keratin Alpha Sleek Professional Shampoo 300ml – Sulfate-Free Anti-Frizz Hair Care

Achieve sleek, salon-smooth hair at home with the Keratin Alpha Sleek Professional Shampoo 300ml by L'Oréal Professionnel. Designed for frizzy, unruly, or hard-to-manage hair, this sulfate-free keratin shampoo gently cleanses while smoothing and strengthening the hair fibre for long-lasting frizz control.

Key Benefits

Up to 2 weeks frizz control with full routine use

Sulfate-free shampoo – no harsh sulphated surfactants

Smooths and reinforces natural hair keratin structure

Reduces unwanted volume for easier styling

Cuts styling time by up to 50%

Adds instant shine for up to 5 days

Improves hair softness and health from the first wash

Suitable for all hair types, including treated hair

Why Choose This Keratin Shampoo?

If you’re searching for the best anti-frizz shampoo UK or a professional smoothing shampoo, this formula delivers visible results:

Gently cleanses without stripping moisture

Leaves hair soft, silky, and manageable

Helps protect against breakage and damage

Ideal for daily use or as part of a keratin routine

Professional Formula

This advanced shampoo is powered by:

Keratin Sleeker Technology – smooths the cuticle for sleek results

Amino Acid Complex – strengthens and reinforces hair fibres

Ultra-creamy texture – luxurious salon-quality experience

How to Use

Apply evenly to wet hair

Massage into a rich lather

Rinse thoroughly

For best results:

Use Smooth Transformer once weekly

Use a professional mask on other wash days

Proven Performance

Frizz control lasting up to 2 weeks*

Faster styling with full routine use

Noticeably smoother, shinier hair after just one use*

*Based on consumer and instrumental testing

Ideal For

Frizzy, dry, or coarse hair

Thick or high-volume hair types

Chemically treated or keratin-treated hair

Anyone wanting smooth, glossy, manageable hair

Product Details

Size: 300ml

Brand: L'Oréal Professionnel

Range: Serie Expert

Type: Sulfate-Free Keratin Shampoo