Keratin Hair Building Fiber Thickening Hair Spray Powder Disposable Thick Hair Product information: Material: Keratin hair fibers Net weight: 25g Quality guarantee period: 3 years Effect:Building fiber fibers will assist you to build a  natural fuller head of hair in seconds. Usage method: Suitable for wonmen and Men. Make sure your hair is dry  Shake bottles over thining area. You may adjust the amount  of fibers on hair. Gently pat hair to disperse fibers. Apply toppik holder spray to secure the fibers will be better  Using Method  Full of Hair  In 30 Seconds! 1. Wash and Dry Your Hair  2. Applying Hair Fibers  3. Adjust Hair Fibers by Hands or Comb 4. Fiber Holding Spray after Hair fibers (can use or not)