Apply to clean brows, once per day, preferably at night before going to sleep. Apply using small strokes in the direction of hair growth to eyebrow hair or area where fuller appearance is desired. When it comes to brow growth, patience is your friend. Just like hair on your head - brow hair grows in a cycle and can take a while for all the hairs to grow in evenly. During this regrowth period it is vital to use a brow growth serum. Use WHAT THE BROW everyday to provide your eyebrows the essential omega-6 fatty acids, vitamin E, and many beneficial minerals that nourish and support healthy hair growth.