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Bosley Professional Strength Hair Thickening Fibers, Light Brown, 0.42 Ounce

Bosley hair thickening fibers are a safe and effective way to eliminate the appearance of baldness and thinning hair. It is perfect for both men and women with hair loss as well as recent hair transplant patients. They are available in a variety of hair colors. Keratin hair fibers blend and cover thinning and low density areas of hair for instant thicker fullerlooking hair.

Key features

  • Creates instant thicker fullerlooking hair
  • Electrostatically attaches to existing hair follicles
  • Coversup fine and thinning areas of hair
  • Perfect for temporary coverup post procedure
  • Enhances existing procedure density

Honest reviews


Don’t love it.

Arrived in good condition. Doesn’t match my hair color; it says auburn but looks more like a strawberry blonde color. Don’t like it and won’t use it.

Kerry Auburn, ME

Bosley Thickening fibers

Works very well to cover up gray and areas of the scalp where you want to shade in. Need to brush over excess from your hair.

Michell New Vernon, NJ

Too red for natural medium brown hair

Too much red pigment for natural medium brown hair. I really wasn’t looking to add powder highlights, and this looks very unnatural in my hair. I still haven’t found a true medium brown hair powder, the closest is Joan Rivers Great Hair Day in blonde, which is actually a taupe brown.

Robyn Rockwell, NC

just OK

This stuff is just ok. You have to be very careful using it because it goes all over the place. And don’t use too much because it makes your hair look like straw. Not impressed and will most likely never buy again.

Eddie Gypsum, OH

Works well

I dye my blonde hair dark brown so the root regrowth makes everything look baaad and bald!I started using this and it hides the regrowth well. Sometimes I use a little hairspray to make the fibers stick better.

Mamie Agawam, MA