Keratin Alpha Sleek Professional Shampoo 1500ml – Sulfate-Free Frizz Control

Keratin shampoo 1500ml for frizzy, unruly hair that needs a sleek finish. Meet the Keratin Alpha Sleek Professional Shampoo from L'Oréal Professionnel Serie Expert.

This salon-grade, sulfate-free formula cleanses without stripping. It helps smooth and strengthen the hair fibre from root to tip.

Powered by Keratin Sleeker technology and amino acid chains. Hair feels softer, looks shinier, and is easier to manage.

Why This Keratin Shampoo 1500ml Stands Out

Up to 2 weeks frizz control with full routine use

Sulfate-free formula – gentle on scalp & hair

Smooths & strengthens keratin structure

Reduces volume & styling time by up to 50%

Instant shine lasting up to 5 days

Improves softness from first wash

Suitable for all hair types, including frizzy, dry, and chemically treated hair

Key Benefits

Looking for the best sulfate-free shampoo for frizzy hair? This professional formula helps deliver a smoother finish with less effort:

Deep cleansing without stripping natural oils

Long-lasting anti-frizz protection

Enhanced manageability for easier styling

Protection against breakage and damage

Salon-quality smoothness at home

Ideal when you want hair that looks polished. Great for busy routines and regular styling.

Advanced Formula

Powered by:

Keratin Sleeker Complex – smooths hair cuticle

Amino Acid Chains – reinforce hair strength

Ultra-creamy texture – luxurious salon experience

If you prefer a richer cleanse, this keratin sleeker shampoo 1500ml offers a creamy lather. It supports smoother-looking lengths.

How to Use

Apply evenly to wet hair

Massage into a rich lather

Rinse thoroughly

For best results:

Use Smooth Transformer weekly

Use a professional mask on alternate wash days

Use consistently for best feel and finish. Pairing with the routine helps maximise frizz control.

Proven Results

Frizz control up to 2 weeks (consumer-tested)

Faster styling time with full routine

Softer, shinier hair after just one use

With regular use, it supports smoother styling. It helps reduce the look of bulk and flyaways.

Perfect For

Frizzy or unmanageable hair

Thick or voluminous hair

Keratin-treated or chemically processed hair

Anyone wanting salon-smooth hair at home

Also suited to dry lengths that need extra softness. A strong choice for maintaining a sleek finish between appointments.

Product Details

Size: 1500ml (Salon Professional Size)

Brand: L'Oréal Professionnel

Range: Serie Expert

Type: Sulfate-Free Keratin Shampoo

This large size is designed for frequent use. It’s a practical option for home care or salon backbar.