Hairs Building Fibers stay firmly in place through wind, rain and perspiration. For longer-lasting results, use Hairs FiberHold Spray.

Hairs Building Fibers do not encourage or discourage hair growth.

Hairs Building Fibers stay in place until you wash your hair.

Yes, you can mix different shades of Hair Building Fibers. It is even recommended to combine different tones to find the shade that best matches your hair, especially for blonde or gray hair. The product can be mixed directly in the hair (start with the darker color and apply the lighter one on top) or mixed in a Hair Fibers bottle.

How long a bottle lasts depends on how often the user applies the Hair Fibers, how much product is used each time, and the size of the product purchased. Here are some general guidelines:

Hairs Building Fibers – Regular Size (12g): Approximately 30 days

Hairs Building Fibers – Large Pack (27.5g): Approximately 60 days or more

Yes, Hairs Building Fibers can effectively and easily cover both gray roots and regrowth.

It is recommended that Hairs Building Fibers be applied after the use of any styling tools such as hairdryers, flat irons or curling irons. Styling products (other than hairspray) should be applied to the hair prior to applying Hairs Hair Building Fibers. Applying gels, mousses, pastes, serums, and the like after applying Hair Fibers may cause shifting and could expose the areas that were meant to be covered. Let styling products dry before applying Hair Fibers.

Yes, Hairs Building Fibers work on all hair types and textures, including European, Asian, and African-American hair.