About the Product Night Density Rescue is an overnight leave-in treatment, clinically proven to boost hair density in 2 months**. This hair serum has a powerful blend of antioxidants known to neutralize free radicals on the scalp surface. This Antioxidant hair serum leaves the scalp feeling refreshed and is suitable for all hair types. 90% of consumers noticed their hair looking healthy. How to Use 1. Use the pipette to take the product out of the bottle. 2. Starting in the middle of the head and moving from front to back, use the pipette to divide the hair and release one drop every 2–3 cm. 3. Move to the left or right side of the head. Use the pipette to divide the hair and apply a drop every 2–3 cm. 4. Repeat on the opposite side of the head. 5. Using your hands, softly massage the head, spreading your fingers to touch every area of the scalp. Add a little pressure to ensure the scalp moves with your fingers in a circular motion. 6. After massage, gently brush the hair.