Nioxin’s Diamax Advanced, Hair Thickening & Breakage Protection Treatment For Thinning Hair is specially crafted for those dealing with thinning hair. This leave-on treatment uses the power of Caffeine, Panthenol, and Niacinamide to visibly thicken hair and safeguard against breakage. Regular use results in fuller, more manageable hair, energizing and nourishing the scalp. Suitable for all hair types, it enhances strength and resilience, standing up to everyday challenges.