L'Oréal Professionnel Paris Keratin Alpha Sleek Shampoo — Sulfate-Free Smoothing, Frizz Control & Hydration

L'Oréal Professionnel Keratin Alpha Sleek Shampoo is a sulfate-free, ultra-creamy cleanser formulated with Keratin-Alpha Shaper and amino-acid chains to soften, hydrate and reduce frizz for long-lasting smoothness.

Designed for professional-level smoothing at home, this shampoo targets the structure of the hair fiber to improve manageability and shine. The formulation focuses on gentle cleansing without harsh sulfates, while ingredients work to reshape and reinforce keratin for improved texture and reduced volume. A refined fragrance profile pairs a fresh floral powderiness with warm woody base notes for a salon-like finish.

How does this shampoo make hair feel smoother and more manageable?

The Keratin-Alpha Shaper and amino-acid chains in the formula work with the hair fiber to help realign and strengthen keratin, which smooths the cuticle and reduces surface irregularities. The result is hair that behaves more predictably, detangles easier, and feels silkier to the touch.

• Keratin-Alpha Shaper supports structural reshaping of the hair fiber.
• Amino-acid chains reinforce weakened areas for improved softness.
• Ultra-creamy texture coats strands for easier combing and styling.

Will this shampoo control frizz and excess volume?

This shampoo is formulated to reduce the appearance of frizz and calm unwanted volume by smoothing the hair surface and adding slip. While individual results vary with hair type and routine, repeated use within the Keratin Alpha Sleek system enhances long-term control and manageability.

• Smoothing actives help minimize flyaways and frizz-prone areas.
• Sulfate-free surfactants cleanse gently without stripping moisture.
• Works best combined with the matching conditioner and finishing products for prolonged effect.

Is it safe for colored or chemically treated hair?

The gentle, sulfate-free formulation is designed to cleanse without aggressive stripping, making it suitable for many color- and treatment-conscious routines. As with any new product, test on a small section or consult your stylist if your hair has recent or complex chemical services.

• No sulfated surfactants to help preserve color vibrancy.
• Free from artificial colorants and alcohol that can dry strands.
• Compatible with salon treatments when used as part of a professional care regimen.

What sensory qualities and texture can you expect?

The shampoo presents as a rich, creamy lather that cleans without over-drying and leaves hair feeling conditioned. Its scent blends bright top notes of aromatic spice with a floral heart and a warm woody-musk base for a polished, long-lasting aroma.

• Luxurious, ultra-creamy consistency for a pampering wash.
• Fresh-cardamom and ginger top notes with orris floral heart.
• Sandalwood and musk add depth to the finish scent.

Who is this for: L'Oréal Professionnel Keratin Alpha Sleek Shampoo is aimed at individuals seeking salon-grade smoothing—especially those with medium to long hair that tends to be frizzy, voluminous, or resistant to sleek styles. It suits users who prefer sulfate-free cleansing and enjoy a refined fragrance. For optimal, longer-lasting results, use it alongside the Keratin Alpha Sleek routine products (shampoo, smooth transformer, serum) as recommended by your stylist.

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