KÉRASTASE Densifique Mousse Leave-In Thickening Mousse with Hyaluronic Acid — Root Lift & Shine

KÉRASTASE Densifique Mousse is a lightweight leave-in foam that visibly thickens thinning hair, boosts volume, and adds luminous shine using hyaluronic acid.

Created for hair that needs more body and resilience, this mousse delivers an instant fuller appearance without weighing strands down. The formula combines a plumping hyaluronic complex with styling polymers to lift roots, smooth fiber uniformity, and preserve a soft, manageable finish. It’s suitable for anyone concerned with loss of density who wants an easy, daily step to add bounce and radiance.

How does this mousse add volume without leaving hair crunchy?

The lightweight foam spreads evenly and evaporates quickly, delivering lift at the root while keeping the hair touchable. Polymers in the formula create structure and body, while conditioning agents maintain softness and shine rather than stiffness.

• Airy foam texture that layers under styling
• Non-stiff finish for natural movement
• Root lift that preserves flexibility throughout the day

What role does hyaluronic acid play in this product?

Hyaluronic acid helps hydrate and plump the hair fiber, improving perceived thickness and reducing the appearance of fine, flat strands. By supporting moisture balance along each strand, it also helps minimize roughness that can lead to breakage and dullness.

• Hydration to increase strand diameter visually
• Enhanced surface smoothness for better light reflection
• Helps protect against brittleness that reduces volume

How should I use KÉRASTASE Densifique Mousse for best results?

Apply to towel-dried hair focusing on roots and mid-lengths, then distribute through the lengths and style as usual—blow-dry for maximum lift. A small amount is usually enough; build up if you need stronger hold or more thickness.

• Shake can well before dispensing one to two pumps
• Work from roots to ends on damp hair, then comb or fingers to spread evenly
• Blow-dry for added lift or air-dry for softer volume

Will this help if my hair is fragile or chemically treated?

The mousse is formulated to smooth and restore uniformity along the hair fiber, making it a compatible styling step for many chemically treated or fragile hair types. It focuses on improving manageability and reducing the look of breakage without heavy buildup.

• Strengthening-oriented formulation to support fragile strands
• Lightweight delivery that avoids excess residue on treated hair
• Enhances shine and appearance of healthier-looking fibers

Who is this for: KÉRASTASE Densifique Mousse suits anyone seeking immediate visible density, root lift, and added shine—especially those with fine, thin, or thinning hair who want a non-greasy, easy-to-use styling product. Use it as part of a daily routine to support fuller-looking hair, or combine with targeted Kérastase treatments for a comprehensive approach to hair thinning concerns. Avoid contact with eyes; follow product instructions for best performance.

Ingredients

Water, Isobutane, Propylene Glycol, Polyquaternium-4, Butane, Propane, Peg-40 Hydrogenated Castor Oil, Phenoxyethanol, Laureth-4, Caprylyl Glycol, Calcium Pantothenate, Ethylhexyl Methoxycinnamate, Safflower Glucoside, Arginine, Glutamic Acid, Cetrimonium Chloride, Serine, Hexyl Cinnamal, Hydroxypropyltrimonium Hydrolyzed Wheat Protein, Linalool, Citronellol, Alpha-Isomethyl Ionone, Sodium Hyaluronate, 2-Oleamido-1,3-Octadecanediol, Geraniol, Fragrance.