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Fyll Hair Fibers uses a natural wool source that is similar to human hair that adds volume and thickness within seconds to fine or thinning hair.

Shake Fiber Bottle on top of desired area of coverage, watch this video for a quick tutorial: Fyll - Premium Hair Thickening Fibers

Fyll Hair Fibers should be used after you have already styled your hair. It is best used after styling your hair and letting it dry and then using Fyll Hair Fibers + Fyll Fiber Locking Spray as the last step.

Yes, it is safe to leave Fyll Hair Fibers in your hair overnight. If any stray fibers end up on your pillow, they can easily be brushed away.

Fyll Hair Fibers are designed to stay in place for the whole day with proper application. To ensure optimal results with wind, rain, and perspiration, apply the Fyll Fiber Locking Spray after applying the Fyll Hair Fibers.

The Fyll Fiber Locking Spray is a companion to the Fyll Hair Fibers. It is designed to be applied after Fyll Hair Fibers as the last step. The Fyll Fiber Locking Spray is formulated to provide optimal performance in wind, rain, and perspiration by locking the fibers to your hair follicles.

While not necessary, we recommend using both products as the Fyll Fiber Locking Spray strengthens the bond between the Keratin fibers and your hair.

This depends on the amount used with each application. On average, our 25g bottle lasts about 60 days.

Yes, Fyll Hair Fibers can be used daily and is designed to not clog your hair follicles. Simply wash your hair with shampoo to remove.

The color of the Fyll Hair Fibers should match your hair root color. This is the case as well with color-treated hair. If still unsure please email us at contact@getfyll.com for assistance.

Fyll Hair Fibers will stay in place until you wash your hair with shampoo.

Yes, Fyll Hair Fibers are perfectly safe to use with color-treated hair. It can also be used to cover both gray roots and color-treated root re-growth.

Yes, we are required to collect sales tax on all orders shipped to New Jersey. The customer is responsible to pay the sales/use tax on the purchases shipped to any other state.

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