Thicker Hair In Seconds.

  • Defined Looks Keratin Hair Fibers in Dark Brown
  • Defined Looks Keratin Hair Fibers in Black
  • Defined Looks Keratin Hair Fibers in Med Brown
  • Defined Looks Keratin Hair Fibers in Light Brown
  • Defined Looks Keratin Hair Fibers in Light Blonde
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Defined Looks Keratin Hair Fibers

Defined Looks Keratin Hair Fibers

 ★★★★★ Rated 5/5 by 295 customers 

$34.99 USD
$34.99 USD
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Free tracked shipping on every order Delivered in 5–11 days. No minimum spend.

Keratin fibers that cling to thinning hair so it looks fuller in seconds, then wash out with shampoo

Color

Get Hair Ascension for $32.39

Hair Ascension: Hair Fibers and the 4-in-1 Defining Pen. You save $21.59.

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  • Fills in thin spots so your hair looks thicker
  • Clings to your own hair with a light static charge
  • Washes out with shampoo, 5 colors
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  • Secure Checkout
  • Tracked Delivery

Keratin Hair Fibers are tiny fibers made from keratin, the same protein your hair is made of. Sprinkle them over thinning areas and a light static charge makes them cling to your hair, so it instantly looks thicker and fuller. They blend in naturally, stay put all day, and wash out with shampoo.

Shipping Information

Every order ships free, with no minimum spend. You'll get a tracking link by email as soon as your order ships. See delivery times in our Shipping Policy.

Return Policy

For hygiene reasons, opened cosmetics can't be returned, and we don't offer change-of-mind refunds. If your order arrives damaged, faulty or wrong, or doesn't arrive, email support@definedlooks.com and we'll send a replacement or a refund. Read our full Refund Policy.

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$34.99

See the Difference

Drag to compare his hair without and with Hair Fibers. Made from his real before and after photos.

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Face with all four Defined Looks products
After
Face without Hair Fibers
Before

Frequently Asked Questions

1
How do I use it?

Style your hair first. Then shake or tap the fibers over thinning areas and pat lightly so they cling. Brush off any that land on your forehead.

2
Which color should I pick?

Pick the shade closest to your hair at the roots. If you're between two, go slightly darker, because it blends in better than lighter.

3
Does it work on bald spots?

It works best where you still have some hair, because the fibers cling to existing hairs. It won't cover completely bald skin.

4
How do I remove it?

It washes out with shampoo.