Kerastase Densifique Thickening Mousse
- Leave-in thickening mousse
- Hyaluronic acid to plump hair
- Thin or thinning hair
- Reduces breakage, adds shine
- Size not listed
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A leave-in mousse that plumps thin hair with hyaluronic acid for visible thickness and shine. The listing gives no size, hold level or directions.
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ASIN: B00K0LUFIQCategory: Hair Styling Mousses
Overview
Not a rinse-out treatment but a leave-in mousse, Kerastase Densifique coats thin hair to plump, hydrate and add volume. Hyaluronic acid swells the fiber slightly, making strands look thicker and more even.
Thicker-looking, shinier hair without a rinse step suits thinning hair that lacks body. The listing omits size, hold strength and directions, which matters when styling relies on it.
Who it's for
Fine, thinning hair that looks sparse at the roots is the target. Those wanting strong hold or a medical hair loss treatment should look elsewhere.
Pros and cons
- Visibly thickens fine hair
- Hydrates with hyaluronic acid
- Adds illuminating shine
- Helps reduce breakage
- Size not listed
- Hold strength not stated
- Cosmetic thickening only
Performance notes
Hyaluronic acid draws moisture into the strand, which slightly plumps each hair so the whole head looks fuller. Smoothing agents even out the surface for shine. Effects last until the next wash.
Specifications
| Brand | Kerastase |
|---|---|
| Product Benefits | Hydration, volume, thickness, shine, breakage reduction |
| Hair Type | Thin, thinning |
| Item Form | Leave-in mousse |
| Key ingredients | Hyaluronic acid |
Frequently asked questions
Do I rinse Kerastase Densifique mousse?
No. It is a leave-in formula.
Does Kerastase Densifique regrow hair?
No regrowth claim is made. It visibly thickens hair and helps prevent future breakage.