The Quinine and Edelweiss BIO anti-hair loss serum is a specific and adapted treatment for hair loss, as well as for weakened and thin hair. Klorane combines botany and science to give strength and vitality to fragile and lifeless hair in a leave-in anti-hair loss treatment, with an exclusive combination of natural active ingredients. Quinine bark extract stops hair loss, while BIO Edelweiss stimulates growth and regulates hair cycles. The synergy of Quinine, Edelweiss BIO and Manganese active ingredients promote hair growth. While the patented combination of Quinine and caffeine strengthen hair anchorage and increase keratin production for stronger, denser hair. The Quinine and Edelweiss BIO anti-hair loss serum is a leave-in spray, precise and easy to use, with a non-greasy and non-sticky finish. Suitable for pregnant and lactating women. How to use: On dry or damp hair, spray 10 times on the scalp. Massage the scalp with your fingertips. It is recommended to apply 3 times a week for 3 months. 1 container = 3 months of use.