Our Men's Hair serum contains water, glycerin and rosemary oil. It is great for male hair growth, giving you thick hair, promoting hair growth, removing dead skin cells, reducing hair graying, and activating hair follicles. The way to use it is simple: Step 1: clean and dry hair. Step 2: Apply proper amount of serum to scalp evenly. Step 3: Gently massage with fingertips in circular motions until absorbed. Step 4: Stick to daily use to get better results. Nourishes hair and scalp after use, eliminates the need to spend hours a day cleaning and adjusting hair, prevents damage and retains moisture, thus helping to keep hair healthy!