L'Oréal Professionnel Paris Pro Longer Thickening Shampoo for Thin & Fine Hair — Reduces Breakage, Adds Volume & Shine

This professional shampoo targets hair that has thinned at the ends from damage and breakage. It combines L'Oréal's patented Filler A-100 thickening molecule with amino acids to fill and reinforce the hair fiber, while providing glossy, fuller-looking lengths. The shampoo is designed to work as part of the Pro Longer system with conditioner and mask for a more complete renewal.

How does Pro Longer help when my ends feel thin?

The formula deposits a concentrated filling molecule along the hair fiber to thicken and resurface weakened ends, restoring a fuller appearance. Amino acids in the blend help reinforce and strengthen lengths so they resist further breakage during styling and brushing.

• Filler A-100 technology fills and thickens the hair fiber.
• Amino acids strengthen weakened lengths and improve resilience.
• Designed specifically for hair with thinned, damaged ends.

What measurable benefits can I expect from regular use?

Instrumental testing shows significant improvements in breakage reduction, split-end appearance, and shine when the shampoo is used as directed. Results are most pronounced when combined with the Pro Longer conditioner and mask as part of a full regimen.

• Reduces breakage by a large percentage when applied correctly.
• Visibly decreases the appearance of split ends and refines lengths.
• Delivers increased surface shine and volume for healthier-looking hair.

How should I use this shampoo for best results?

Apply to damp hair and work into a rich lather, rinsing thoroughly. Shampoo twice — first to cleanse, second to treat — then follow with Pro Longer Conditioner or the Treatment Mask for deeper renewal.

• Use on wet hair; lather and rinse thoroughly.
• Shampoo twice: first cleanse, second treatment application.
• Follow with the matching conditioner or mask to maximize repair and volume.

Will this shampoo weigh down fine hair or change my styling routine?

The formulation is engineered to add body and shine without heavy residue, keeping fine hair feeling lighter while adding the appearance of thicker lengths. It integrates easily into existing styling steps and works well before volumizing or heat-protectant products.

• Adds volume along lengths without a heavy finish.
• Compatible with styling and heat-protectant products.
• Best paired with Pro Longer conditioner and mask for balanced results.

Who is this for: L'Oréal Professionnel Pro Longer Thickening Shampoo is suited for people with fine, thin, or damaged hair whose ends feel weakened or have visible splitting. It is ideal for anyone wanting salon-grade thickening, improved shine, and a gentler path to stronger lengths when used as part of a targeted haircare routine.

Ingredients

Aqua / Water / Eau, 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. C240982/2.