System Professional Purify Lotion 125ml is a targeted leave-in treatment, formulated with 24-hour protection against dandruff.Hair Care Benefits: Reduces the microorganisms that cause dandruff 24-hour dandruff protectionFormulation Highlights: Soothing Dermatologist-developed and tested Mild and pH neutral formulationsTo use:1. After every shampoo, apply the lotion directly onto the scalp2. Divide dry or towel dry hair into 5 sections from front to back, covering the entire scalp3. Gently massage, do not rinse