Is L'OREAL Professionnel LISS UNLIMITED safe for sensitive or dry scalps?

The shampoo contains strong surfactants such as sodium laureth sulfate and a synthetic fragrance that can be irritating, but the conditioning polymers and oils help reduce dryness; people with very sensitive scalps should patch test or use it only occasionally.

What role does polyquaternium-10 play in this shampoo?

Polyquaternium-10 is a cationic polymer that coats each hair strand, reducing static, improving manageability and adding a smooth, glossy finish after rinsing.

How often should this smoothing shampoo be used, and does it contain any controversial chemicals?

It is typically recommended for use two to three times per week or as needed for frizz control; the formula includes sodium laureth sulfate, a common detergent, and fragrance allergens such as hexyl cinnamal and limonene, which some consumers prefer to avoid.

L'Oréal, L'Oréal Professional products, L'Oréal Professionnel • 250ml

L'ORÉAL Professionnel LISS UNLIMITED

Hair

Product Insights

L'OREAL Professionnel LISS UNLIMITED is a 250 ml professional smoothing shampoo designed to tame frizzy or rebellious hair. Its formula combines conditioning agents such as polyquaternium-10, hydrolyzed wheat protein, and evening primrose oil to smooth the cuticle, while the cleaning power comes from sodium laureth sulfate and disodium cocoamphodiacetate. The product also contains a synthetic fragrance and several known allergens including hexyl cinnamal, butylphenyl methylpropional, benzyl alcohol, citronellol, and limonene, which may irritate sensitive scalps.

Comparative Analysis

Positioned as a salon-grade smoothing shampoo, LISS UNLIMITED differentiates itself from ordinary retail shampoos by offering a high concentration of polymeric conditioning agents and botanical oils, targeting professionals who need strong frizz control on thick or resistant hair.

Ingredients

Water, sodium laureth sulfate, disodium cocoamphodiacetate, glycol distearate, polyquaternium-10, hexylene glycol, disodium ricinoleamido mea-sulfosuccinate, sodium chloride, ceteareth-60 myristyl glycol, cocamide mea, sodium benzoate, salicylic acid, hexyl cinnamal, arginine, glutam.c acid, butylphenyl methylpropional, serine, hydroxypropyltrimonium hydrolyzed wheat protein, evening primrose oil, aleurites moluccana seed oil, benzyl alcohol, citronellol, 2-oleamido.1,3-octadecanediol, limonene, sodium hydroxide, citric acid, fragance

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