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. Silicones free – Parabens free – MIT free. Biodegradable formula – Dermatologically tested