A quinine scalp serum for hair that looks thinner
Klorane Quinine Growth-Boosting Hair Serum is a leave-in scalp serum for men and women whose hair looks thinner. It is built around quinine, the signature Klorane plant active drawn from cinchona bark and the backbone of the brand's strengthening hair care. Applied directly to the scalp, the serum supports stronger, fuller-looking hair with regular use.
How it works
A fluid serum applied straight to the scalp, section by section, then massaged in with the fingertips. It is not rinsed out, so it works between washes and fits into a morning or evening routine without weighing the hair down.
Who it suits
- Hair that looks tired with seasons, stress or fatigue
- Thinner-looking hair that lacks density
- Men and women alike
- Anyone already using the Klorane Quinine shampoo
Worth knowing before you buy: this is a cosmetic scalp care designed for hair that looks thinner. It needs several weeks of regular use to show results and is not meant for sudden or patchy hair loss. We could not confirm the full ingredient list for this new formula, so check the box if you avoid specific ingredients.
Complete the routine

Quinine Growth Shampoo
The matching shampoo from the same range.
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Quinine Growth Conditioner
The matching conditioner for the lengths.
Shop →Characteristics
- Texture: leave-in serum
- Hair type: all hair types
- Hair concerns: thinner-looking hair, lack of density
- When to apply: regularly, as a course
- Main benefits: fuller and stronger-looking hair
How to use
Apply to the scalp, on dry or towel-dried hair, parting the hair section by section. Massage gently to spread the serum. Do not rinse. Use regularly as a course, following the directions on the pack.
Active ingredients
- Quinine (cinchona bark extract): Klorane's signature active for strengthening care of thinner-looking hair
Manufacturer information
Brand: Laboratoires Klorane
Address: Les Cauquillous, 81506 Lavaur Cedex, France
EAN: 3282771000428
