L'Oréal Professionnel Paris Pro Longer Thickening Conditioner for Thin & Fine Hair — Filler A‑100, Volume & Split‑End Repair

L'Oréal Professionnel Pro Longer Thickening Conditioner is a salon-grade conditioner designed to thicken weakened lengths, reduce the appearance of split ends, and add volume and shine to fine or thin long hair.

If your hair has become thinner at the ends or looks limp and prone to breakage, this conditioner targets those specific concerns. Formulated with Filler A-100 — a concentrated filling molecule — plus amino acids, it resurfaces and strengthens hair fiber to help hair appear fuller and healthier. Use it as part of the Pro Longer regimen for best results: it complements the Pro Longer Shampoo and Mask to renew long hair over time without weighing strands down.

How does this conditioner address thinned ends and split ends?

The formula works by filling and smoothing weakened areas of the hair shaft, reducing the visible signs of split ends by reshaping and coating the fiber. Amino acids in the blend support structure and resilience, helping lengths resist further damage from daily styling.

• Contains Filler A-100 to thicken and resurface hair fiber.
• Amino acids strengthen and support longer lengths.
• Clinically shown reduction in the visual appearance of split ends.

Will it add volume without making fine hair heavy?

Yes — the conditioner is formulated for fine and thin hair types so it nourishes without weighing hair down. It enhances lift and body, creating the perception of fuller hair while maintaining softness and shine.

• Delivers noticeable volume to roots and lengths for fuller-looking hair.
• Lightweight conditioning agents avoid buildup on fine strands.
• Leaves hair soft and manageable, not flat.

How should I use it for best results?

Apply to towel-dried, shampooed hair focusing on mid-lengths and ends, then rinse. For extra nourishment, leave the conditioner on for 1–2 minutes before rinsing; follow the full Pro Longer routine for cumulative repair benefits.

• Use after Pro Longer Shampoo for matched formulation benefits.
• Distribute evenly through damp hair, concentrating on thinned ends.
• Rinse thoroughly; leave-on for 1–2 minutes for deeper conditioning.

How quickly will I notice changes and how does this fit into a haircare routine?

Some users notice improved manageability and added volume after the first few uses, while visible renewal of lengths and a reduction in the appearance of split ends develop with repeated use. For optimal results, combine the conditioner with the Pro Longer Shampoo and Mask as a weekly or biweekly maintenance plan depending on your hair’s needs.

• Initial softness and shine often visible after one use.
• Progressive improvement in broken or thinned ends with continued use.
• Pairs with Pro Longer Shampoo and Mask for a complete regimen.

Who is this for: This product is designed for people with long hair that is fine or thin and showing signs of thinning at the ends, damage, or breakage. It’s suitable for anyone seeking a salon-grade conditioner that increases volume and shine while helping renew lengths — especially those who want a lightweight formula that won’t flatten delicate hair.

Ingredients

Aqua / Water / Eau, Hydroxypropyl Starch Phosphate, Quaternium-87, Stearyl Alcohol, Behentrimonium Chloride, Propylene Glycol, Amodimethicone, Phenoxyethanol, Isopropyl Alcohol, Candelilla Cera / Candelilla Wax / Cire De Candelilla, Methylparaben, Trideceth-5, Glycerin, Arginine, Panthenol, Trideceth-10, Lactic Acid, Benzyl Salicylate, Chlorhexidine Dihydrochloride, Benzyl Alcohol, Linalool, Limonene, 2-Oleamido-1,3-Octadecanediol, Aminopropyl Triethoxysilane, Hydroxycitronellal, Citronellol, Acetic Acid, Polyquaternium-6, Parfum / Fragrance. C241154/1.