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L'Oreal Professionnel Pro Longer Hair Thickening Shampoo
In-store pricing snapshot
Last known warehouse price ยท Jul 10, 2025. Currently out of stock.
* Prices shown are for Costco members only.
L'Oreal Professionnel Serie Expert Pro Longer Hair Thickening Shampoo, 16.9 fl oz. This professional-grade shampoo is formulated with exclusive Filler A-100 technology that penetrates the hair fiber to visibly thicken damaged or split ends for fuller-looking hair. It gently cleanses while reducing the appearance of thinned ends, delivering visibly longer, more voluminous, and healthier-looking hair.
Key ingredients include Amino Acid to prevent breakage and strengthen hair, along with Filler A-100 for visible end-thickening. Clinical results show 69% stronger hair fiber after use with the Pro Longer system compared to non-conditioning shampoo. The formula also contains Panthenol, Arginine, and Glycerin for added conditioning benefits.
Ingredients: Aqua/Water, Sodium Laureth Sulfate, Sodium Chloride, Cocamidopropyl Betaine, Dimethicone, Citric Acid, Hexylene Glycol, Sodium Benzoate, Sodium Hydroxide, Amodimethicone, Carbomer, Guar Hydroxypropyltrimonium Chloride, Trideceth-10, Glycerin, Salicylic Acid, Glycol Distearate, Arginine, Panthenol, Mica, Benzyl Salicylate, Benzyl Alcohol, PEG-100 Stearate, Linalool, Steareth-6, Phenoxyethanol, Limonene, Coco-Betaine, Trideceth-3, Hydroxycitronellal, CI 77891/Titanium Dioxide, Citronellol, Alpha-Isomethyl Ionone, Aminopropyl Triethoxysilane, Acetic Acid, Fumaric Acid, Polyquaternium-6, Parfum/Fragrance.