5 Best Hair Building Fibers - June 2023

Updated December 2021

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Bottom line

Pros

Cons

Intertwines with your own hair for a natural look. Gives instant appearance of thicker, fuller, and healthier hair in one application.

Pros

Resists wind, rain, and sometimes even sweat after a gym workout. Can be easily removed with a regular shampooing. Covers up and disguises thinning hair, bald spots, and extension tracks in between visits. Nine color shades for men and women.

Cons

May clog follicles and pores. Could smudge on pillow during sleep as well as on clothing in daytime. Can be itchy on scalp and coloring may get under nails when applied without applicator.

Best Bang for the Buck

XFusion

Keratin Hair Fibers Economy Size

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Customer Favorite

Bottom Line

This is like "hair magic." Makes you look like you're having a good hair day after one application.

Pros

Great for root touch-ups, thinning hairlines, and bald spots. Creates the look of fuller, thicker hair. No need for hairspray. Washes out easily. Great value.

Cons

Color options may not provide a perfect match. Application can come with a bit of a learning curve. Product can leave a gritty texture and may thin out after sweating.

Hair Illusion

100% Natural Real Human Hair Fibers

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Simple Yet Solid

Bottom Line

Product uses 100% human hair vs. synthetic fibers for a more natural, discreet look.

Pros

Electrostatically adheres to your own hair and gives "illusion" of a fuller head of hair. Takes just minutes to apply with great outcome to enhance overall appearance. Looks like real hair follicles under light and blends well with your natural hair.

Cons

May need company’s holding spray product to help this product adhere to scalp. Fibers may shift when sleeping or styling. Fallen fibers can feel prickly on neck.

Strand Maximizer

Hair Building Fibers w/Color Powder

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Instant Application

Bottom Line

Offers instant gratification after applying. Sprinkle on and voila! The appearance of a thicker, fuller mane.

Pros

Instantly conceals thinning hair and bald spots. Non-greasy and blends well with own hair as long as there is some hair on scalp. Looks and feels like real hair after working into strands.

Cons

Sometimes leaves scalp looking blotchy. Better for smaller thinning patches vs. larger areas. Fibers can clump.

Cuvva

Hair Loss Concealer Products for Thinning Hair

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Easiest to Use

Bottom Line

This easy-to-use product is made of quality organic protein and creates fuller, thicker hair in a matter of seconds.

Pros

Works best on hair at least an inch and a half long. Interlaces with natural hair perfectly. Made of organic protein. Not messy, with no residual fibers floating on clothing and/or while sleeping. Stays on well, without running in rain or sweat.

Cons

Not good for those with extensive hair loss or major baldness. Can be clumpy if brushed excessively. Colors don't always blend well with own natural color.

HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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Models
Considered

204

Consumers
Consulted

Hours
Researched

When you start to lose your hair, either from a receding hairline or a growing bald patch, you probably start to look for some ways to slow or roll back the process. One of those is hair-building fibers. While they don’t actually help hair growth, these tiny fibers cling to the existing hair to fill out bald patches in a safe, chemical-free way. You’ll want to find fibers that match your current hair color, most importantly. Some you roll on and others you spray, it’s up to you whichever you prefer. You can also use hair-building fibers between getting your hair colored to touch up roots.

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