If you want to achieve thicker looking hair, L'Oreal Professionnel Serioxyl Thicker Hair Treatment (90ml) is what you're looking for. Formulated with powerful ingredient Intra-Cyclane, it creates a new hair substance that thickens every hair strand to provide a visually fuller effect. The quick and accurate and has been proven to help you achieve hair that is increased in diameter in an instant. Ideal for fine, thinning hair and suitable for sensitive scalps.