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It’s an irrefutable fact that nearly everyone’s hair thins with age, but that doesn’t mean it has to be noticeable. You can invest in expensive hair growth procedures or treatments, or you can take the easy route and snag a bottle of the best hair fibers for men.
For those who don’t know, hair fibers are tiny, lightweight fibers made of cotton or keratin protein that are applied to areas of the scalp where hair is thinning in order to mask the appearance of hair loss. These fibers cling to the strands you’ve already got, helping them appear thicker. Hair fibers are beloved because they’re low stakes: they’re quick and easy to apply, they look natural, and they wash out with shampoo.
There are some differences between products based on fiber type, color options, and price, but overall, each one on this list provides a cost-effective and efficient way to fill in hair loss, restoring some of that confidence from youth.
Keep scrolling for the 8 best hair fibers for men below.
Key Takeaways
For this assignment, I started by poring over hundreds of photos, customer reviews, and the top hair growth blogs until I whittled it down to the 8 finalists you see on this list. Overall the best hair fiber for men is Toppik Hair Building Fibers because it uses premium natural keratin to make hair appear fuller, lasts all day, and is weather-resistant.
Caboki Hair Loss Concealer is another great pick because they offer 14 different shades to choose from.
Why it’s great: The OG of hair fibers, this is the brand that all others are compared to. It’s affordable and easy to apply, and its effectiveness can be chalked up to the innate static charge of the premium natural keratin that helps it cling to the tiniest of hairs, making hair appear fuller and thicker. All 9 shades are resistant to sweat, wind, and rain, helping it last all day until you’re ready to wash it out.
Who is this for? The most reliable and popular brand, this is for the guy who wants an easy, safe choice without having to test out multiple brands.
Flaws but not deal-breakers: Though deemed safe, this hair fiber for men does contain ammonia.
Hair colors available: Auburn, black, dark brown, gray, light blonde, light brown, medium blonde, medium brown, white | Hair Type: Fine, thin | Size: 0.42 oz | Cruelty-Free: Yes
Why it’s great: Perhaps this hair fiber is so great because it’s owned by Toppik and is considered their Professional line. Some even say it seems to last longer. Even so, this one really seems to fill out hair where it’s lacking. The keratin protein effectively binds to the hair, making it appear fuller and thicker, and doesn’t come out until you wash it, surviving even through strong winds and rain.
Who is this for? A reliable choice for the guy who wants something that lasts longer than the classic Toppik.
Flaws but not deal-breakers: Because it’s not quite as fine as Toppik, this hair fiber for men has the potential to clump.
Hair colors available: black, dark brown, medium brown, light brown, medium blonde, light blonde, auburn, gray, white | Hair Type: Fine, thin | Size: 0.98, 0.53, 0.11 oz | Cruelty-Free: Yes
Why it’s great: This wildly affordable option is worth the purchase if you find an option that matches your hair color. For the price, it works exceptionally well, especially against rain, sweat, and gusts of wind. This hair fiber for men holds fast by adhering to the root and seems to add lift and body to the hair thanks to Procapil, a patented complex of natural botanicals that work to promote growth and prevent hair loss.
Who is this for? Perfect for the guy who might be new to the hair fiber game and doesn’t want to invest a lot before deciding if hair fiber is for him.
Flaws but not deal-breakers: If you’re a blonde, then look elsewhere. Color options are pretty limited here.
Hair colors available: Medium brown, dark brown, black | Hair Type: Fine, thin | Size: 0.42 oz | Cruelty-Free: Yes
Why it’s great: Brought to you by the successful hair transplant company, these thickening fibers use premium natural keratin that bonds securely to the hair to cover thinning, low-density areas you’d rather conceal. And the stuff really sticks. Color stays for days until you wash it, regardless of sweat or weather. The high-quality, clean formula is good for sensitive skin, too, thanks to a sulfate- and paraben-free formulation.
Who is this for? Because it’s color-safe, this is a good option for guys who highlight or dye their hair.
Flaws but not deal-breakers: I wish it came in more color options.
Hair colors available: Black, dark brown, light brown, medium brown | Hair Type: Fine, thin | Size: 0.42 oz | Cruelty-Free: Yes
Why it’s great: Utilizing 100% natural keratin fibers, this product makes hair look thicker, even while you sleep. Consumers love the way it blends in beautifully with their hair for a natural, undetectable finish. In addition to offering great coverage, it is weatherproof and water-resistant, perfect for summer heat and even working out.
Who is this for? A great choice for the guy who works out a lot or lives in a sweaty, humid climate and wants the hair fibers to stay in place.
Flaws but not deal-breakers: Some users say that this hair fiber for men can be messy upon application.
Hair colors available: Auburn, black, gray, light blonde, light brown, medium brown, sandy blonde | Hair Type: Fine, thin | Size: 0.53, 1.06 oz | Cruelty-Free: Yes
Why it’s great: With a wide variety of shades in an easy-to-use and apply formula, this hair fiber for men is perfect for everyday use. The formula is natural, thanks to cotton follicle-mimicking fibers that look exactly like the real deal and feel lightweight, blending with the look of your natural hair. If you discover that you’ve purchased the wrong shade, then customer service will refund you so you can purchase the right one.
Who is this for? For the guy who prefers cotton fibers because they’re lightweight on the head.
Flaws but not deal-breakers: These fibers are somewhat noticeable up close.
Hair colors available: Ash brown, auburn, black, dark auburn, dark blonde, dark brown, dark gray, gray, natural brown, light brown, medium blonde, medium brown, white, light blonde | Hair Type: Fine, thin | Size: 4boz | Cruelty-Free: Yes
Why it’s great: Designed for the entertainment industry, these fibers are undetectable under bright stage lights, meaning that they’re great for daily wear. Both waterproof and natural, the formulation includes keratin fibers and mineral colorants—that’s it. You’ll find that it’s easy to apply and doesn’t leave any residue behind.
Who is this for? This hair fiber for men is a good natural choice if you have sensitive skin or want to steer clear of any unnecessary chemicals.
Flaws but not deal-breakers: Because the keratin fibers are finer, they need to be applied daily.
Hair colors available: Medium brown, light cool brown, light brown, light gray, dark gray, dark brown, black, white | Hair Type: Fine, thin | Size: 0.04, 1.06, 3.53 oz | Cruelty-Free: Yes
Why it’s great: The best hair fibers for men are really no good if they don’t match your natural hair colors. This one offers a wide variety of colors, even two different variations of salt and pepper, so you can always find a solid match.
Like Febron fibers, it’s totally natural, too, using only cotton fiber and mineral colorants: no synthetic dyes, fillers, or preservatives here. Because it’s cotton, it’s very lightweight and doesn’t clump. And apparently, it makes thinning hair look 10x fuller. Yes, please.
Who is this for? A great choice for a wide variety of hair colors, especially if you’ve had trouble with color matching in the past.
Flaws but not deal-breakers: It’s best not to use a silky conditioner prior to use or the fibers don’t adhere as well.
Hair colors available: Auburn, black, blonde, dark brown, dark gray, golden blonde, gray, light auburn, light brown, medium brown, natural blonde, salt and pepper light, salt and pepper dark, silver, white | Hair Type: Fine, thin | Size: 1.06 oz | Cruelty-Free: Yes
Buying Considerations for The Best Hair Fibers For Men
Cotton vs. Keratin
You will find either cotton or keratin fibers, which are the best hair fibers for men. Each one has its merits. Cotton is lightweight and breathable, therefore making it more comfortable on the head. Because keratin has a rigid structure, it can feel heavy and is not as easily adaptable as cotton for different hair textures. Cotton can appear more natural.
Keratin, on the other hand, binds best to existing hair for a denser, more voluminous appearance. It is also extremely durable. At the end of the day, it might simply come down to which product you like best.
Color
A lot of times, what determines the hair fiber product you go with is the best color match. There’s no point in purchasing if they have only gray or black and your hair is blonde. Even if a brand seems to have the right color, experts recommend you choose a hair fiber color that’s a shade darker than your existing color.
And don’t be afraid to mix and match. If it works with your budget, purchasing more than one color can actually mimic hair’s highlights and will give you the best results.
Weather Resistance
You’ve applied your hair fiber, and now all you need is the weather to abide and your pores to stop sweating to keep the fibers in place…Fortunately, most of the hair fibers for men on this list are water-resistant, meaning that they won’t wash away during light rain or sweating. This is crucial if it’s hot out or you’re a sweaty guy.
Weather resistance refers to protection against the wind. Because the fibers bind to the hair, they won’t get swept away in a gust.
How We Chose
A lot of hair fiber products claim to fill in thinning hair in a natural, effective manner. But sometimes, these claims don’t hold up. So, wherever possible, I chose hair fibers from reputable brands that use effective, well-known fibers that last. I also sifted through hundreds of customer reviews, landing on my top 8 by choosing hair fibers that people rate highly and would likely buy again.
Company reputation: Will a company let you return the fibers for a refund if the shade you choose doesn’t match your own? I always take a company’s standing into consideration before recommending a product they offer to you.
Customer reviews: Do people feel like the fibers look real, and do they really hold up against rain? What people say online matters more to me than what a company claims.
Transparency: Is it obvious at first glance if a hair fiber for men is all-natural or if they’re made from cotton or keratin? The willingness to lay ingredients out there is important to me when recommending a hair fiber product.
Why Trust Us?
Rachel Cascella is a hair fanatic who loves researching hair health both for work and for pleasure. For years she wrote for TheRightHairstyles, doling out cut and color tips and tricks to the masses, and for nearly two decades, she’s been a part of the fashion and beauty industry as a model, working with some of the best hair stylists in the world.
Now, she writes in-house for FashionBeans, where she enjoys researching on various hair topics, such as finding the best shampoo for men with curly hair or investigating which hair color shampoos are worth it and which ones you can leave behind.
Rachel’s commitment to quality and her in-depth analysis ensure that you can trust her guidance to find the best hair fiber solutions for your needs.
Final Verdict
The best hair fibers for men should be easy to apply and easy to use, and they should discreetly fill in thinning hair without any threats from weather or water. My top pick is Toppik Hair Building Fibers because it has a great reputation for being effective, it uses premium keratin protein, and it holds up against water and inclement weather.
FAQ
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Because of the nature of hair fibers, the best hair fiber for men does actually work to cling to existing hair, making it appear thicker and fuller.
Rachel Cascella is an in-house writer at Fashion Beans with 14 years of experience in the fashion industry, balancing her knowledge of cutting-edge trends with a penchant for truly timeless style.
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