Experiencing hair loss? Hide thinning hair and bald spots and get full hair instantly with Toppik Hair Building Fibers. Learn more at Toppik.com.

Toppik Hair Building Fibers, made of colored keratin protein, blend undetectably with existing hair strands to instantly create the appearance of naturally thick, full hair.

Browse Toppik's complete collection of hair thickening products. Find solutions for fuller, thicker-looking hair for all types and needs.

Made with the same protein as your hair, Toppik Hair Building Fibers blend seamlessly to instantly give you a natural-looking, full head of hair!

New to hair fibers? Instantly and discretely cover thin, thinning or fine hair with the Toppik three-piece Hair Fibers Starter Set.

Toppik Colored Hair Thickener is an innovative color spray solution designed to disguise areas of thin or thinning hair, scalp show-through, bald spots and root re-growth between color appointments.

Toppik is the creator of fuller-looking, thicker hair, and its products are loved by millions of customers around the globe. The product line includes best-selling hair-thickening products, as well as other …

Explore Toppik's Fill Me In Hairline Filler for a natural-looking, fuller hairline. Easy application and long-lasting results for thinning areas.

Questions on how to apply hair fibers? Toppik has videos, photos, and tips to get you started.

Define your hairline or turn up the volume with Toppik Hair Filler. Fill in part lines, cover extension tracks and touch up roots between hair color appointments.