The Quinine Hair Strengthening Serum is a highly effective concentrate with 98% natural-origin ingredients to strengthen hair and help reduce hair loss. Within this serum is the synergistic combination of Quinine and Organic Edelweiss to provide unprecedent action on promoting stronger, healthier hair and reducing hair loss. With proven natural effectiveness, hair loss is reduced after one month*.  

Hair loss is reduced after one month*. 

Within 3 months, hair is denser and more resiliant**

*Average results phototrichogram on 45 subjects. 3 applications per week for 1 month.

**Consumer use test on 66 people for 3 months 

*Average results phototrichogram on 45 subjects. 3 applications per week for 1 month

• Strengthens thinning hair

• Helps reduce hair loss

• 98% natural formula

• Formula tested more than 1,200 times

• Vegan

• 100% recycled and recyclable packaging

• Dermatologically tested

• Made in France

The Cinchona is a tree from South America. traditionally used for its strengthening and revitalising properties. Researchers at KLORANE Laboratories selected an extract of red Cinchona: Cinchona calisaya Wedd. species because its bark is naturally rich in Quinine, a molecule with powerful, scientifically shown and patented stimulating properties.​

ORGANIC Edelweiss is a flower grown on Alpine mountain tops, known for its resistance to the most extreme conditions. To avoid wild harvesting and endangering the resource, the Edelweiss used by Klorane comes from organic crops grown in Switzerland at an altitude of over 1,000 meters. Klorane selected the "Helvetia" variety due to its suitability for the growing conditions and its high content in active ingredients. The aerial parts are harvested by hand between the second and fourth year of cultivation, when the Edelweiss is in bloom. The plant is then dried by small local farmers. The supply chain set up is fair trade, and certified by Ecocert in accordance with the Fair For Life standard.  

For over 25 years, Klorane has been committed to the Klorane Botanical Foundation, which fosters a passion for botany and is commited to preserving and promoting plant heritage protection by sharing botanical knowledge around the world. The Foundation takes its commitment into the field through 3 essential missions: 

PROTECT plant species under threat

EXPLORE the treasures of the plant world to better understand and protect them

SHARE our botanical knowledge with the largest number of people, particularly children