Ideal for thinning hair, the KLORANE Quinine Duo features 2 fortifying haircare products to nourish, strengthen and refresh from root to tip. Shampoo with Quinine and Organic Edelweiss 200ml A gentle shampoo to strengthen fine, thinning hair. Quinine is believed to resist hair loss while organic edelweiss is thought to fight against premature hair thinning. Conditioner with Quinine and Organic Edelweiss 200ml This conditioner aims to fortify thinning hair with a renewed sense of vitality. Blended with organic edelweiss and quinine extract, the formula creates a fuller-looking illusion. The conditioner aims to deliver a detangled, manageable mane to decrease the need for tugging at strands.