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Bosley Thickening Fibers

Bosley Thickening Fibers

  • Auburn BS
  • Black BS
  • Blonde BS
  • Dark Brown BS
  • Light Brown BS
  • Medium Brown BS
  • Gray 12G
Bosley Thickening Fibers

Item # 010

Regular Price: $30.00

Special Price $17.99

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Regular Price: $30.00

Special Price $17.99

*Free U.S. Shipping On This Item

Bosley Hair Thickening Fibers is a hair loss concealer for thinning and sparse areas of the scalp. These keratin hair fibers adhere to existing natural hair giving it a thickened and full appearance. It is waterproof, sweat proof, and will not rub off for long-lasting wearibility. Can also be used as a root re-growth cover-up for extended in-between visit to colorist. Washes off easy with shampoo.


  • Creates instant thicker fuller-looking hair 
  • Covers-up fine and thinning areas of hair 
  • Perfect for temporary cover-up post procedure 
  • Enhances existing procedure density


  • Hair must be completely dry. 
  • Brush or comb hair, shake Hair Thickening Fibers applying liberally into thinning and low-density areas. 
  • Gently style hair into place with fingers or plastic comb. 
  • If desired, use Brush Applicator filled with Hair Thickening Fibers to apply around hairline and hard to reach areas. 
  • Spray Bosley Professional Strength Non-Aerosol Hairspray & FiberHold Spray, which may increase the bond between natural hair and Hair Thickening Fibers for extra durable, longer-lasting style. 
  • Shampoo to remove.





(19.8 based on 20 reviews)

Fabulous product

  • Sue

  • location:
  • May 11, 2020

Great product. It has done an amazing job concealing the gray during this corona virus during the hair salon closings. I highly recommend it.

What I ordered.

  • Mark

  • location: FL
  • Feb 18, 2020

Fast delivery.

  • View all Reviews

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