Three hair care essentials from Perfect Locks: black Hair Building Fibers, Lace In Place Mist spray, and a sleek black applicator.
A circular swatch of dark brown hair fiber from Perfect Locks above two black bottles and a small applicator, text Dark Brown nearby.
A close-up of medium brown Hair Building Fibers by Perfect Locks is shown in a circular frame above three items: a bottle labeled Black/Negro, a spray bottle labeled Lace in Place Mist, and a black applicator bulb.
Light Brown hair fibers color sample with LIGHT BROWN text, black bottles of Hair Building Fibers, lace mist, pump, Remy hair extensions.
Perfect Locks’ Hair Building Fibers in Dark Blonde with lace in place mist spray, applicator pump, color swatch, and “DARK BLONDE” text.
Set of Perfect Locks Hair Building Fibers in black bottle, Lace In Place Mist Spray, applicator, and Medium Blonde Remy sample. Text: MEDIUM BLONDE.
Two black Perfect Locks bottles, a black applicator, and a light blonde swatch labeled LIGHT BLONDE. Hair Building Fibers for hair enhancement and human hair extensions.
Two auburn Hair Building Fibers bottles by Perfect Locks, a black applicator, and auburn fibers labeled “AUBURN” above the products—perfect for blending with human hair extensions.
Close-up of gray Hair Building Fibers by Perfect Locks above three products: bottle of fibers, Lace In Place mist, and black applicator.
A textured medium brown Remy hair extension above three Perfect Locks products: Hair Building Fibers, Lace in Place Mist, and applicator bulb.
A close-up of white Hair Building Fibers by Perfect Locks appears above two black bottles labeled “Perfect Locks” with an applicator bulb, ideal for blending with Remy extensions; “WHITE” is displayed beside the fibers.
Black rectangular box featuring a professional hair processing tool kit with visible bottles and tools, shown through a top window.
The back of a black rectangular Perfect Looks box shows instructions, text, and visuals on using a hair styling tool for women.
Hair fiber application kit with spray bottle, fiber container, applicator, and visual guides showing hair coverage improvements.
A black cylindrical hair fiber container with its cap off lies next to color swatches labeled for easy shade selection.
Rated 4.5 out of 5 stars.

Hair Building Fibers by Perfect Locks

Sale price: $22 Regular price: $44
50% OFF COLOR SPOTLIGHT
4 easy payments of $5.50 or
Color:
Medium Brown
Keratin fibers that cling to existing hair and fill in thin spots instantly. Washes out, looks natural.
Quantity
Only 2 left in stock
  • Free shipping $225+
  • 30-day returns
  • 20+ years trusted
Pickup available at Perfect Locks HQ Usually ready in 2 hours

Hair Building Fibers by Perfect Locks

Medium Brown

Perfect Locks HQ

Pickup available, usually ready in 2 hours

635 Ygnacio Valley Rd
Walnut Creek CA 94596
United States

+18882904771

Color options for this product

Black

Black

Dark Brown

Dark Brown

Medium Brown

Medium Brown

Light Brown

Light Brown

Dark Blonde

Dark Blonde

Medium Blonde

Medium Blonde

Light Blonde

Light Blonde

Auburn

Auburn

Gray

Gray

White

White

Need help? Chat with our team

Colors options for this product

Black

Black

Dark Brown

Dark Brown

Medium Brown

Medium Brown

Light Brown

Light Brown

Dark Blonde

Dark Blonde

Medium Blonde

Medium Blonde

Light Blonde

Light Blonde

Auburn

Auburn

Gray

Gray

White

White

Need help? Chat with our team

Payment Options

Get it now, pay later

Select installments at checkout to split your purchase into 4 interest-free payments $5.50 with Afterpay, Shop Pay, Klarna, or Sezzle. We also offer Interest-free loans through Affirm and Paypal Credit.

  • No fees when you pay on time.
  • No impact on your credit score.

* CA resident loans made or arranged pursuant to a California Financing Law license. NMLS #1353190.

Payment Partners
Accepted payment partners: Afterpay, Shop Pay, Klarna, Sezzle, Affirm, and PayPal Credit logos

Payment Options

Get it now, pay later

Select installments at checkout to split your purchase into 4 interest-free payments $5.50 with Afterpay, Shop Pay, Klarna, or Sezzle. We also offer Interest-free loans through Affirm and Paypal Credit.

  • No fees when you pay on time.
  • No impact on your credit score.

* CA resident loans made or arranged pursuant to a California Financing Law license. NMLS #1353190.

Payment Plan Partners
Accepted payment partners: Afterpay, Shop Pay, Klarna, Sezzle, Affirm, and PayPal Credit logos

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Pro Stylist Benefits

Pro Stylists Save Big!

Take your business to new lengths with exclusive Pro Stylist savings on each and every order. Add items to cart and see the savings grow!

  • 20% off any order amount
  • 25% off your order $500+
  • 30% off your order $1000+

* Cannot be combined with other promotions or discounts.

Pro Stylist Benefits

Pro Stylists Save Big!

Take your business to new lengths with exclusive Pro Stylist savings on each and every order. Add items to cart and see the savings grow!

  • 20% off any order amount
  • 25% off your order $500+
  • 30% off your order $1000+

* Cannot be combined with other promotions or discounts.

Product Information

Discreet, instant hair loss concealment. Perfect Locks Hair Fibers cling to your existing hair to build back fullness and density in under 30 seconds, undetectable from inches away.

Key features

  • Keratin fiber system with naturally occurring iron oxide minerals
  • 100% talc-free, made with just 3 ingredients, so no dandruff byproduct
  • Feather-light so it won't strain fine, thinning hair
  • Fibers electrostatically cling until you wash them out
  • Can help disguise gray and white hair
  • Cruelty-free, never animal tested

How to use

Dry and style hair as usual, then shake the fibers onto thinning areas. Pat gently and brush through - the more you brush, the fuller and more natural the result. Set with a shot of hairspray. Washes out with shampoo, leaving no buildup.

Best for

Thinning hair and areas of reduced density in men and women.

Customer Reviews

See what our customers are saying.
Read all reviews

  • 5 stars: 3 (75%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (25%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Julia (Oakland, California, United States)
AMAZING Product

When I was younger my hair was really thick and full. But after having my daughter and having multiple surgeries, my hair got thinner overtime. Which took a toll on my confidence. I hated how thin and sparse my hair looked! I tried teasing my hair or using dry shampoo to create fullness, but it only did so much. After finding Perfect Locks hair fiber, this fixed it right away! My main problem area is the back of my scalp, but after using this product it looks like my old hair! Thank you Perfect Locks for creating this product! This is a really a confidence boosting product!

B
Brittni P. (Palo Alto, California, United States)
Amazing

I purchased this product for my grandmother that has been thinning all around. I was able to show her how to use the kit and after one try she is a professional. She is glowing and loving this product from Perfect Locks. They have some many color options which made the processes nice and easy.

A
Anonymous (Front Royal, Virginia, United States)
Fabulous! Better than expected!

Newbie to this product and, I have to admit, skeptical. I really did not expect to love this, but the truth is, it is everything they say!I gave it a day off (from work) to play with. Started with the pump attachment because it seemed like a great idea. After 45 minutes of tiny little puffs I just wasn't impressed. So I changed out the puffer for the sifter. I was thinking it would be too much, and too uncontrolled. But it wasn't - it was just right. So next I wanted to REALLY give a good review so after a few hours I shook some more in to see how much was too much. I really never found that amount, but I DID discover that in getting careless with the application it ended up on my face. So my only advice is, put it on BEFORE your makeup. (And be sure your hair is dry.)Also, somewhere in the middle of the day I went for a bike ride - with a hair cover, visor and helmet. I was a sweaty mess and did not expect the product to hold up to this - but it DID! My scalp did sweat ALOT and most of my hair was soaked, but as it dried it just got fluffy!I tried the spray that comes with it. But I did not master this - it seems counter intuitive - make hair fluffy/increase volume then compact it down. I did not have the patience for this experiment. So I just don't use it.I left the product in over night and my hair still looked good in the morning. (Even after that sweat!) My pillow cases are not white, and I do wonder how much may end up there by morning. Not a big deal in theory, but you may want to experiment , if it could matter ;)It DEFINITELY made my hair look and feel thicker, fluffier and prettier. It washed out easily, did not irritate my scalp and was not noticeable (except in a good way!) I definitely recommend this product! It gave me back my confidence! Thank you!

Dear Doll, We are so extremely happy with your experience that you shared with us. This review is very helpful, as well as we love your feedback. Thank you so much for taking the time to write this review for us. As well as we are happy you were able to find a product that gives your confidence back. We do appreciate you shopping with us! Please feel free to contact us if you have any questions or concerns at 1-888-290-4771 or email us at support@perfectlocks.com. XO✨, Perfect Locks Team ❤️

C
Christine E. (Spring, Texas, United States)
Great product!

This hair fiber set works well. I purchased the dark brown for my natural dark brown hair and it blends great. Unfortunately, the pump on mine came broken. If you're new to using hair fibers, be careful whenever you open the product. The hair spray/setting spray is a nice touch, but isn't needed to achieve a fuller look. Overall a good product, but not extraordinary compared to other (and less expensive) hair fibers on the market.