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

L'Oréal Professionnel Paris Pro Longer Thickening Shampoo is a salon-grade cleansing treatment that strengthens thin, thinning lengths, reduces breakage and the visible signs of split ends while boosting shine and volume.

This shampoo is formulated for hair with thinned ends and damage. It uses a concentrated filling technology plus amino acids to thicken the fiber surface, fortify lengths and improve overall shine. Use it as the first step in the Pro Longer regimen—paired with the conditioner and mask—to target fragile ends and help hair appear fuller and healthier over time.

How does this shampoo reduce breakage and protect fragile lengths?

The formula combines a high-load filling molecule with amino acids that reinforce the hair fiber and help fill in weakened areas along strands. By resurfacing and strengthening the shaft, the product reduces mechanical and daily-stress breakage when used regularly.

• Patented Filler A-100 concentrates filling molecules to thicken fiber surface.
• Amino acids penetrate and reinforce lengths for added resilience.
• Instrumental tests show significant reduction in breakage with routine use.

Will this shampoo actually improve the look of split ends?

This shampoo doesn't cut or repair split ends permanently, but it reduces their visible appearance by filling and smoothing the damaged tips. Regular cleansing with the Pro Longer system gives hair a renewed, less ragged finish.

• Resurfaces strand surface to make split ends look less noticeable.
• Pairs with Pro Longer Conditioner and Mask for improved tip appearance.
• Delivers cosmetic smoothing—best results seen after repeated use.

How does it add volume and shine without weighing hair down?

The thickening actives are designed to build on the fiber rather than coat it with heavy oils, so fine and thin hair gains body while remaining light. A formula that balances fill and fortification results in up to five times more shine and measurable lift at the lengths.

• Thickening technology increases hair diameter for fuller-looking strands.
• Lightweight conditioning avoids residue that can flatten fine hair.
• Instrumental measures report enhanced shine after application.

How should I use this shampoo for best results?

Apply to damp hair and work into a rich lather, rinsing between steps; cleanse once to remove buildup and a second time to treat the fiber. Follow with Pro Longer Conditioner or Treatment Mask to lock in benefits and support longer-term strengthening.

• Use on wet hair: lather, rinse, then repeat for treatment effect.
• Follow with Pro Longer Conditioner or Mask for deeper renewal.
• Integrate into weekly routine; consistent use yields the most visible change.

Who is this for? This shampoo is intended for people with thin, fine or length-compromised hair who want to reduce breakage and the appearance of split ends while adding volume and shine. It suits anyone seeking salon-grade thickening technology in a daily cleanser—especially those following a targeted Pro Longer regimen to renew fragile lengths and maintain healthier-looking hair.

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.