L'Oréal Professionnel Paris Pro Longer Thickening Shampoo — Reduces Breakage & Split Ends, Adds Volume & Shine (250 ml)

L'Oréal Professionnel Paris Pro Longer Thickening Shampoo is a salon-formulated cleansing treatment that thickens lengths, reduces breakage, and minimizes the visible appearance of split ends for thin or fine hair.

This professional shampoo is built for hair with thinned ends and damage; it uses L'Oréal Professionnel's patented Filler A-100 complex and amino acids to refill and strengthen strands. The formula aims to thicken the fiber’s surface, improve shine, and help hair resist mechanical stress during styling. Clinical and instrumental testing cited by the brand reports reduced breakage and fewer visible split ends when used as directed, and the product is designed to work best as part of the Pro Longer regimen alongside the matching conditioner and mask.

How does this shampoo reduce breakage and visible split ends?

The shampoo contains Filler A-100 — a high concentration of a filling molecule — plus amino acids to bond to weakened areas along the hair shaft. Rather than chemically altering the fiber, the formula deposits materials that help resurface and thicken the hair, making ends feel firmer and look fuller.

• Filler A-100 fills and smooths thin or depleted ends.
• Amino acids reinforce the hair’s surface for improved tensile strength.
• Instrumental tests reported up to 94% reduced breakage and 17% fewer visible split ends.

Will Pro Longer add volume and shine without weighing hair down?

This thickening shampoo is formulated for fine and thinning hair types, balancing lightweight cleansing with deposition of thickening agents. It aims to lift and volumize lengths while delivering up to five times more shine according to brand testing, so hair appears healthier without the heavy residue of richer formulas.

• Light foam effectively cleanses scalp and lengths without stripping.
• Volume-enhancing agents boost body along mid-lengths and ends.
• Shine-boosting finish improves light reflection for glossier-looking hair.

How should I use this shampoo for best results?

For optimal performance, follow the professional routine recommended by the brand: shampoo twice, treating the second wash as the active application to allow ingredients to deposit on weakened areas. Rinse thoroughly and follow with Pro Longer Conditioner or the Pro Longer Mask to lock in strengthening and smoothing benefits.

• Apply to wet hair and lather; rinse after the first wash to remove build-up.
• Repeat application and leave on while massaging to maximize ingredient contact.
• Complete the regimen with Pro Longer Conditioner or Treatment Mask for best results.

Is this suitable for colored or chemically treated hair?

The formula is created for fine and thin hair that shows thinning at the lengths, including hair that has undergone color or other salon services. Because it focuses on filling and surface renewal rather than aggressive chemical restructuring, it can be incorporated into routines for treated hair — however, always patch-test and consult your stylist for personalized guidance.

• Designed to target thinned ends commonly seen after color or styling.
• Works best when paired with professional Pro Longer treatments.
• Consult a stylist for compatibility with specific chemical services.

Who is this for: L'Oréal Professionnel Paris Pro Longer Thickening Shampoo is aimed at people with fine, thinning, or damaged lengths who want cosmetic thickening, enhanced shine, and reduced visible split ends. It’s especially useful for anyone seeking a salon-grade cleansing step that pairs with a targeted conditioner and mask to rebuild the appearance of stronger, fuller 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.