Bring life back to thinning hair with this clean strengthening serum from Klorane. Powered by 100% natural Quinine, B vitamins and Biotin, plus enhanced with fortifying Caffeine to thicken and densify, weak, lifeless and thinning hair, this highly effective concentrate works on the scalp to boost hair resilience and vitality, while strengthening from root to tip to build the optimal foundation for visibly thicker, fuller hair. Elevated with Organic Edelweiss from the Swiss Alps, this lightweight serum has a fresh, non-greasy and non-sticky texture that won't weigh your hair down.