Extra-Strength Hair Fiber Spray. If you’re using hair fibers, then this extra-strength men’s hair fiber spray by Absolute is a must! Hair-building fiber spray comes in a fine-mist, pump spray bottle. You’ll get an invisible, all-day hold for locking in the finest hair fibers. For best results, apply hair fibers (sold separately) and spritz fiber spray to seal. For maximum hold, you can use spray both before and after applying hair fibers. Hair fiber spray for men settles naturally, so you’ll get the appearance of soft, touchable hair. Suitable for all hair types. Must be used with hair fiber powder, sold separately.