Rogan makes a product that comes with an eye dropper. Im a diabetic and losing the last half of eyebrows. what i do and it has worked is get an eyeshadow brush, dip in liquid and go over the brow area where you want brows to grow.once they start to grow dye them the color you want (try not to go too dark looks cheap and fake, unless your hair is really black).To dye them mix only a small amounts of dye with equal parts of developer. Its best to use cream or gel color and developer(to prevent running into your eyes) It's best to apply with mascara brush. leave on as directions say or until desired color. Remember if you have gray brows they take longer to absorb Color. After you remove color and wash face trim and shape brows as you wish them to grow. Depending on one's hair growth will determine how often to dye, trim and be maintained. if you keep them trimmed they will appear thicker. if you dont know how, go to salon get them done and ask and learn.