KÉRASTASE Densifique Thickening & Strengthening Conditioner for Thin Hair — Hyaluronic Acid, Lightweight Volume

KÉRASTASE Densifique Thickening & Strengthening Conditioner is a lightweight, hyaluronic acid–infused conditioner that detangles, hydrates and visibly plumps fine or thinning hair for fuller-looking lengths and ends.

This salon-grade conditioner is designed to improve texture and density without weighing hair down. Blending moisturizing ingredients with a targeted thickening complex, it helps hair appear more substantial from mid-lengths to ends while restoring suppleness and shine. The formula pairs well with Densifique shampoos and serums for a coordinated routine focused on creating body and resilience in fine hair types.

How does this conditioner make thin hair look thicker?

Instead of coating hair with heavy oils, the formula uses hyaluronic acid to attract and retain moisture inside the fiber, subtly swelling each strand for a plumped effect. Conditioning agents smooth the cuticle so hair reflects light better, creating an appearance of improved density and shine.

• Hyaluronic acid hydrates and expands the hair fiber for visible plumping.
• Lightweight emollients condition without flattening roots or lengths.
• Cuticle-smoothing ingredients enhance light reflection and perceived thickness.
• Rinses clean for a weightless finish that keeps volume intact.

Will this conditioner detangle and strengthen fragile hair?

Yes — it combines gentle detanglers with strengthening actives to ease combing and reduce breakage during styling. The result is easier wet-combing and less stress on fragile strands, which helps hair look healthier and more manageable over time.

• Detangling agents reduce knotting and brushing damage.
• Strengthening components support strand resilience from mid-lengths to ends.
• Improved texture helps minimize split ends and frizz when used regularly.

How should I use the conditioner for best results?

Apply a small, quarter-sized amount to freshly shampooed, wet hair, focusing on mid-lengths and ends where thinning is most visible. Leave it on for 2–3 minutes to allow the hyaluronic acid to penetrate, then rinse thoroughly; pair with Densifique shampoo and treatments for a fuller-looking finish.

• Use after a suitable volumizing or Densifique shampoo.
• Distribute evenly through mid-lengths and ends—avoid heavy application at roots.
• Rinse completely after 2–3 minutes for a lightweight result that supports styling.
• Use consistently for cumulative textural improvement and manageability.

How will this fit into my styling routine without weighing hair down?

The conditioner is formulated to hydrate and add body while remaining lightweight, so it supports styling products and blow-dry techniques designed to maximize lift. Because it doesn’t leave a heavy residue, root volume and styling hold are preserved, allowing you to shape hair with tools and products as usual.

• Rinses clean to maintain natural lift at the roots.
• Compatible with mousse, spray, and lightweight creams for volume styling.
• Helps prepping damp hair for blow-drying or air-drying without flattening effects.

Who is this for: KÉRASTASE Densifique Thickening & Strengthening Conditioner is ideal for those with naturally fine, thin, or thinning hair seeking a salon-quality conditioner that increases manageability, adds visible body, and improves strand texture without added weight. It suits all hair types lacking density and works particularly well when combined with other Densifique products for a targeted volumizing regimen.

Ingredients

Water, Sodium Laureth Sulfate, Coco-Glucoside, Glycerin, Distearyl Ether, Sodium Chloride, Behenyl Alcohol, Cocamide Mipa, Laureth-2, Ppg-5-Ceteth-20, Sodium Benzoate, Polysilicone-8, Carbomer, Arachidyl Alcohol, Sodium Methylparaben, Salicylic Acid, Taurine, Stearyl Alcohol, Aminomethyl Propanol, Polyquaternium-16, Hexyl Cinnamal, Limonene, Linalool, 2-Oleamido-1,3-Octadecanediol, Hydroxycitronellal Citronellol, Biotin, Sodium Hydroxide Citric Acid, Fragrance.