Hair Fibers Explained: What They Are and Who They're For
Hair fibers are tiny, colored strands, usually keratin protein, cotton or synthetic microfiber, that you shake or spray onto thinning hair. They carry a light static charge, so they cling to your existing hair and make each strand look thicker. The result is less visible scalp, instantly.
What they're made of
The three main types are keratin fibers (Toppik, Toppik PRO, Nanogen), plant fibers such as Levant cotton (Caboki, Boldify) and synthetic microfibers (Febron). Keratin is the same protein family as human hair. Plant fibers suit people who want to avoid animal-derived ingredients.
Who they work for
Fibers work best when there's still some hair: a thinning crown, a widening part, diffuse thinning. They don't work on fully bald skin, because there's nothing to cling to.
What they don't do
Fibers are cosmetic. They don't grow hair or stop hair loss, so pair them with treatment. Read how hair fibers work or compare the best hair fibers.
FAQ
Are hair fibers safe?
For most people, yes. They sit on the hair and wash out. Patch test if you have a sensitive scalp.
Do hair fibers cause hair loss?
There's no good evidence that they do.