An overnight serum that works on hair density while you sleep
René Furterer Triphasic Night Density Serum is a leave-in serum designed to be applied at night, so its density-boosting ingredients can work on the scalp for hours without being rinsed away. Part of the Triphasic line for age-related and reactive hair thinning, it targets the scalp environment overnight and is meant to be washed out the next morning.
How it works
A fluid, fast-absorbing serum that sinks into the scalp without leaving the pillow greasy, so it can be left on overnight comfortably.
Who it suits
- Thinning or ageing hair, used overnight
- Anyone already on a Triphasic hair-density routine
- A low-effort addition to an existing haircare routine
- Scalps that respond well to leave-in treatments
Worth knowing before you buy: this serum contains fragrance; wash pillowcases regularly, as with any overnight leave-in scalp treatment.
Complete the routine

Triphasic Longévité Shampoo
A stimulating shampoo for hair thinning with age.
Shop →
Triphasic Longévité Densifying Balm
A leave-in finish for the Longévité routine.
Shop →Characteristics
- Texture: fast-absorbing fluid serum
- Hair type: thinning hair
- Concerns: low hair density, ageing hair
- When to apply: at night, on a clean, dry scalp
- Main benefits: works on scalp density overnight, rinsed out the next morning
How to use
Apply directly to a clean, dry scalp at night, section by section, and massage in. Shampoo out the following morning.
Active ingredients
- Triphasic density complex: targets the scalp environment overnight to support denser-looking hair
Manufacturer information
Brand: Pierre Fabre Dermo-Cosmétique, René Furterer
Address: Les Cauquillous, 81506 Lavaur Cedex, France
EAN: 100ml: 3282771001401
