L'OREAL PROFESSIONNEL PARIS Pro Longer Thickening Shampoo — For Thin Ends, Strengthening & Shine

L'Oréal Professionnel Pro Longer Thickening Shampoo rebuilds thinned ends and visibly strengthens lengths while boosting shine.

This salon-grade shampoo is formulated to target hair that shows signs of thinning at the tips, breakage and dullness. Infused with the brand's Filler A-100 complex and amino acids, it works to refill and fortify the fiber where hair is weakest. Clinical instrumental tests report up to 94% reduction in breakage, a 17% decrease in the appearance of split ends and up to five times more shine when used as directed.

How does Pro Longer help hair that feels thin at the ends?

The formula uses a high concentration of filling molecules that adhere to the hair surface to thicken and smooth weakened lengths. Amino acids complement the filling action by reinforcing the internal structure, which reduces fiber fragility.

• Patented Filler A-100 deposits filling molecules along the fiber.
• Amino acids strengthen and fortify strand structure.
• Targets thinned tips to improve texture and manageability.

What performance results can I expect after using it?

Instrumental testing shows a marked reduction in breakage and fewer visible split ends, plus a noticeable increase in gloss. Results are best when the shampoo is used consistently and followed by the matching conditioner or mask from the Pro Longer range.

• Up to 94% reduction in breakage (instrumental test).
• 17% decrease in appearance of split ends (instrumental test).
• Up to 5x more shine compared to untreated hair (instrumental test).

How should I use the shampoo for optimal effects?

Work the shampoo into wet hair to create a rich lather, then rinse and repeat: first pass cleanses, second pass treats the fiber. For complete repair and additional volume, pair with Pro Longer Conditioner and the Pro Longer Mask as part of a weekend treatment.

• Apply to damp hair, lather, and rinse; repeat for treatment.
• Follow with Pro Longer Conditioner or Treatment Mask.
• Use regularly; apply the mask as a deeper weekly repair when needed.

Will this make my hair look fuller without weighing it down?

The formulation balances replenishing molecules with lightweight conditioning so lengths gain density and shine without heavy residue. It’s designed for fine to medium textures where added thickness at the ends is desired without loss of natural movement.

• Thickens and resurfaces hair fiber for fuller-looking lengths.
• Delivers visible shine while preserving hair bounce.
• Suitable for thin, weakened ends seeking reinforcement.

Who is this for: Pro Longer Thickening Shampoo is created for people with fine, thinning or damaged ends who want stronger, shinier lengths. It’s a professional-grade option for anyone looking to reduce breakage and the visual signs of split ends while restoring surface smoothness. Ideal when used as part of the complete Pro Longer regimen for ongoing reinforcement and cosmetic improvement.

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.