Use: After opening the sachet, unscrew the lid of an empty Hair Building Fibers bottle and remove the strainer, using a sharp tool if needed. Pour the sachet’s content into the bottle. Be careful not to fill more than ¾ of the bottle because when the container is full, the strainer can get clogged creating a problem with sprinkling the fibers on hair. After refilling, twist on the strainer and use as usual. Just sprinkle the contents on your head and apply the fibers into hair, using a comb or your fingertips. We recommend using hairspray afterwards, for greater durability.