Toppik Spray Applicator is great if you’re trying to use Hair Fibers on a hard to reach place, like the crown or near the hairline, the Spray Applicator allows you to spray the Hair Fibers exactly and only where you need them. It’s usually ideal for smaller areas of thin or thinning hair, since you can target the Hair Fibers into a specific area. It also works well to disguise partings, cover up root regrowth, or blend hair extensions. The Spray Applicator is easy to attach, but just keep in mind that it only works with the Regular size (12g) and Large size (27.5g) Hair Fibers bottles If you’re trying to use Hair Fibers on a hard to reach place, like the crown or near the hairline, the Spray Applicator allows you to spray the Hair Fibers exactly and only where you need them.