A salon shampoo that tames frizz and volume from the first wash
L'Oréal Professionnel Série Expert Keratin Alpha Sleek Shampoo is a professional shampoo for all hair types prone to frizz and too much volume. Its Keratin Alpha technology with amino acids smooths the hair fibre, and the sulfate-free base cleanses gently while keeping moisture in.
The texture
A pearly, creamy shampoo that lathers softly and rinses clean.
Who it suits
- Frizzy, puffy or unruly hair
- Coloured hair that needs gentle cleansing
Worth knowing before you buy: it contains silicones and a strong salon fragrance.
Complete the routine

Keratin Alpha Sleek Mask
Deeper smoothing once or twice a week.
Shop →
Keratin Alpha Sleek Serum
A mirror-shine finish on dry hair.
Shop →Characteristics
- Texture: cream shampoo
- Hair type: all hair types prone to frizz and volume, including coloured hair
- Hair concerns: frizz, puffiness, lack of shine, roughness
- When to use: at each wash
- Main benefits: smooths frizz, controls volume, softens, adds shine
- Formulated without: sulfates
How to use
Apply to wet hair, massage gently into a lather, then rinse thoroughly. Follow with the Keratin Alpha Sleek mask or conditioner for more smoothing.
Active ingredients
- Keratin Alpha technology with amino acids: smooths and disciplines the hair fibre
- Sodium cocoyl isethionate and mild surfactants: sulfate-free cleansing
- Amodimethicone: softens and helps control frizz
- Polyquaternium-7 and polyquaternium-10: condition and help detangling
- Glycerin: keeps hair hydrated
Ingredients
Aqua/Water/Eau · Sodium Cocoyl Isethionate · Disodium Laureth Sulfosuccinate · Glycol Distearate · Sodium Lauryl Sulfoacetate · Sodium Lauroyl Sarcosinate · Glycerin · Parfum/Fragrance · Decyl Glucoside · Cocamidopropyl Betaine · Coco-Betaine · PPG-5-Ceteth-20 · Divinyldimethicone/Dimethicone Copolymer · Amodimethicone · Sodium Hydroxide · Citric Acid · Polyquaternium-7 · Carbomer · Polyquaternium-10 · Sodium Benzoate · Sodium Chloride · PEG-55 Propylene Glycol Oleate · Propylene Glycol · Salicylic Acid · Benzoic Acid · Tetramethyl Acetyloctahydronaphthalenes · Polysorbate 21 · Linalyl Acetate · Carvone · Citrus Limon Peel Oil · Trideceth-6 · Limonene · Coumarin · Linalool · Citrus Aurantium Bergamia Peel Oil · Butylene Glycol · C12-13 Alketh-23 · C12-13 Alketh-3 · Pinene · Cetrimonium Chloride · Juniperus Virginiana Oil · Phenoxyethanol · Sodium Lactate · Taurine · Polysorbate 20 · Palmitoyl Tripeptide-1 · Palmitoyl Tetrapeptide-7
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: L'Oréal Professionnel
Address: 14 rue Royale, 75008 Paris, France
EAN: 3474637335755
