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10.0

About product

We love Boldify’s Hair Building Fibers because it offers an undetectable and natural solution to hair thinning or graying hair in both men and women. The fibers are 100% clump-proof and blend seamlessly with your existing hair. On top of that, applying the fibers is simple. Start by washing and drying your hair before use. Then, shake the fibers over the desired areas and pat gently to set it in place for an instant and opaque coverage.

Pros

  • Size: 0.98 ounces
  • Color: Dark brown
  • Free of: Phthalate and sulfates
  • Key Feature: Designed with follicle-mimicking molecules

Customer Reviews

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Customer Reviews

Came across this product and thought - I put makeup on my face, why not my scalp? As seen from the pictures, my hairline is very obvious and getting worse as I age. The before and after show improvements in the look. My hair is black but dyed dark brown. Got this in dark brown and it blends well. Overall satisfied and happy to recommend the product. Notes - the powder is very fine and can get to the forehead, best to cover it before applying; or carefully clean it afterward or it will look awkward.

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Boldify actually works. I have always had fine, thin hair, and now that I'm an old lady, it's all white. My scalp shows though in places, especially in the middle of the back where I have a cowlick that parts my hair down the middle. My scalp is actually tanned there because I walk outside a lot and it is always exposed. You can see the spot in the BEFORE photo, and it's totally gone in the AFTER photo, after sprinkling on the white Boldify. I'm thrilled!

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10.0

About product

If you are looking for seamless coverage for greying hair, Boldify Undetectable Hair Fibers is the perfect option. This 28g bottle of hair thickening product is made from follicle-mimicking molecules which attach to your existing hair, creating a natural finish to match your hair color. Boldify Undetectable Hair Fibers come with a Color Match Guarantee, so even if you are unsure of which shade to choose, you can still enjoy peace of mind knowing that if the color isn't quite right, you can receive assistance at no additional cost. These Hair Building Fibers are also cruelty-free and sustainably made in an ISO 9001 facility, so you can feel confident buying a safe and affordable product. Plus, application is speedy and simple; wash, dry and style your hair as usual then shake the fibers over the desired areas, pat gently to set in place, and enjoy an instantly thicker look with flawless color. Overall, Boldify Hair Fibers is an incredibly convenient product that provides natural and undetectable coverage for thinning hair while being affordable without compromising on quality.

Pros

  • Creates natural camouflage for grey hair
  • Weather resistant and long-lasting
  • Great for short or long hair
  • Easy to wash out when you want

Customer Reviews

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Customer Reviews

The BOLDIFY Hair Fibers (12g) are designed to help individuals with fine or thinning hair achieve an instantly thicker and fuller appearance. Here’s a detailed review:Product Composition and ApplicationBOLDIFY Hair Fibers are made from natural, colored keratin protein, which clings to existing hair to create the appearance of fuller hair. The fibers are electrostatically charged, allowing them to bond securely to your hair without falling off easily. Application is straightforward: you shake the fibers onto the thinning areas, and they blend seamlessly with your natural hair.Ease of UseThe product is incredibly easy to use, making it a convenient option for daily use or special occasions. The shaker bottle design allows for precise application, and the fibers disperse evenly across the scalp. For best results, it’s recommended to apply the fibers to dry hair and gently pat them into place to help them settle.Appearance and EffectivenessBOLDIFY Hair Fibers are highly effective in creating the illusion of thicker hair. They come in various shades to match different hair colors, ensuring a natural look. Once applied, the fibers blend well with existing hair, covering bald spots or thinning areas and providing a fuller, more voluminous appearance. The result is immediate and can significantly boost confidence, especially in social or professional settings.Longevity and DurabilityThe fibers are designed to stay in place throughout the day, resisting wind, sweat, and light rain. While not completely waterproof, they hold up well under most conditions. The product is easy to wash out with shampoo, making it a temporary but effective solution for thinning hair.Compatibility and SuitabilityBOLDIFY Hair Fibers are suitable for both men and women and can be used on all hair types and textures. They are particularly beneficial for those experiencing thinning at the crown, hairline, or part. The product is also safe to use alongside other hair treatments or styling products.Pros:Easy and quick to applyInstantly creates a thicker, fuller hair appearanceNatural look with multiple color optionsDurable throughout the day, even in challenging conditionsSuitable for all hair types and both men and womenCons:May require a bit of practice to achieve the perfect applicationNot fully waterproof, so it may not withstand heavy rain or swimmingTemporary solution that needs reapplication after washingOverall PerformanceBOLDIFY Hair Fibers offer an effective and easy way to combat the appearance of thinning hair. The instant results and natural look make it a popular choice for those seeking to enhance their hair’s volume and thickness without resorting to more permanent or invasive treatments. It’s a reliable, confidence-boosting product that delivers on its promises.

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Recently in my life (I am 36) my ovaries gave up the ghost and just stopped producing estrogen. I didn’t know this happened and unfortunately all my hair fell out. It won’t grow back no matter what I try and my self esteem was TERRIBLE! I cried every time I took a shower and more hair fell out. I am now being treated for my hormonal issues but it’s likely my hair never comes back. I was so torn up about this until I found this product. Now? I don’t really care if it comes back. That would be cool but my life doesn’t revolve around not having enough hair anymore. I just put the boldify on and it lasts forever. I don’t wash my hair daily because of it being so fragile. The powder stays put no matter what I’ve done that day, including moving furniture. I cannot say thank you enough to the people who make this product. This is not a paid review. No one gave me this product or asked me to try it. This product genuinely changed my life for the better. I tell EVERYONE about it.

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Good product, little bit on the expensive side due to the quality but I wish they had a pump spray rather than just to tap because alot of people want to use it on the hairline and its very tough because the powder just falls on your face.

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Came across this product and thought - I put make up on my face, why not my scalp?!As seen from the pictures, my hair line is very obvious and getting worse as I aged. The before and after show improvements of the look. My hair is black but dyed dark brown. Got this in dark brown and it blends well. Overall satisfied and happy to recommend the product.Notes - the powder is very fine and can get to forehead, best to cover it before applying; or carefully clean it afterwards or it would look awkward.

Read More

Boldify actually works. I have always had fine, thin hair, and now that I'm an old lady, it's all white. My scalp shows though in places, especially in the middle of the back where I have a cowlick that parts my hair down the middle. My scalp is actually tanned there because I walk outside a lot and it is always exposed. You can see the spot in the BEFORE photo, and it's totally gone in the AFTER photo, after sprinkling on the white Boldify. I'm thrilled!

Read More

I have some top thinning due to over processed hair. I used the medium brown for my hair. This is what I have found. While it does cover, it fills in the scalp area with very tiny fibers to make it look like there is hair. If you lightly scrape the scalp with your nails they will come up with the fibers under them as this is just a loose powder. I have oily skin, it will stick to your skin if it gets blown around. I had some dark splotch on my forehead from the dust settling during the day. It does not stick to hair or scalp, its just a dust powder.Secondly, the dust gets everywhere in the bathroom or wherever you are using it. One use and the bathroom counters and light switch and everything n the counter was covered in a light dusting of brown powder. Next time I will do it in the shower stall. Also I will try sure brush out any fibers sitting on my hair out before I get dressed, as this can get onto clothing since it does not stick to anything.

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Cache bien les cheveux perdus

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Te deja como polvo de la timba de tutankamon. No se ve natural y deja el cabello tieso

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This is the Best hair fibres product I have ever used, you'll notice the fibres give excellent coverage and stay in place when your applying them, they attach to your hair when your putting them on your hair. Afterwards I apply a hair spray to keep them in place. For the price , this is definitely top quality product and I personally think they give a natural look as you can see in my photos

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Bluffant j’avais une autre marque depuis des années j’ai commandé celui-ci car mon produit était en rupture de stock… je l’ai utilisé que je l’ai eu le lendemain j’en ai recommandé d’autres ❤️❤️

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I have used many other brands of this product, but after using this brand, it gives me a better quality of fiber that fixes my hair combination.

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9.6

About product

Boldify Hairline Powder provides an instant solution to covering thinning or grey hair. Its unique 48-hour guarantee locks in place until you shampoo, offering long-lasting coverage. It is an exceptional alternative to root cover up spray, leaving your hair feeling smooth with no sticky or greasy residue. Unlike other hair toppers and fibers, it is mess proof, making it easy to apply and providing precise coverage. It is perfect for even the busiest of us as the compact mirrored travel kit design makes for quick styling on the go. As an added bonus, Boldify comes with a Lifetime Promise where you can keep the bottle and receive a prompt refund if you are not happy with the product.

Pros

  • Easy to use on the go or at home
  • Stays in place throughout the day, no slippage
  • Mineral-infused binding powder.
  • No water necessary for application.

Customer Reviews

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Customer Reviews

I’ve tried three other brands of hairline concealer and none of them come close to the color and coverage of Boldify.My hairline is receding at the temples and I use the powder when I wear my hair up. My hair is level 3-4 with an ashy base. Most of the brown filler powders I’ve tried have a high degree of warmth and don’t blend in well with my hair. The boldify Ash Brown blends perfectly.Although I love the powder, I’m not real crazy about the applicator that comes with it. The sponge itself is nice, but it’s hard for me to use the big round base that it’s attached to. The base is so big that I can’t see exactly where I’m applying the powder, so I usually just use one of my own small sponges.

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I ordered the wrong color and followed the directions included with the product regarding this. Not only did they replace the used product I had tried out they shipped thru Prime so I would have no shipping charges. AND they did it all promptly. When was the last time you felt moved to rave about outstanding customer service? These folks are AWESOME! So, on to the product. WOW! I use it for touch-up between my six week hair color appointments. It covers my steel gray and shiny silver grow-out beautifully. I wash my hair every other day and one application does it until my next shampoo. I was using a sort of waxy touch up stick that you dampen to apply. Boldify has it beat 100%

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This works to cover up the thin spots in your hair and make it appear thicker. That part is great. It is more time consuming than expected to get it in your hair. It is also a bit messy. You can't touch your hair once it's in because you will have this color on your fingers. It is something you have to set and forget, if you will. Also, be careful of where you place it because it darkens everything it touches. It makes your hair feel dirty and I felt like I had to wash my hair when I got home. However, it did make my hair look thicker where I needed it and for some hair styles, I will continue to use this but with caution for the lessons learned when applying the first time or two.

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I have very dark, but not black, hair and was trying to cover a temporary bald spot. I purchased the dark brown but it was too light so I reached out to customer support. They responded very quickly and provided a refund and suggested I purchase the black, which I did. Layering the black and dark brown worked perfectly! It’s very easy to apply. I use a makeup brush so it’s only going exactly where I need it, and it lasts all day. I think this is a hard product to sell online due to the difficulty in matching the endless array of hair color, so having such great customer support makes it worth a try.

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This product is one of the coolest things in the hair market. I have struggles with fine thin hair my whole life. Currently I am in the process trying to regrow my hair longer/thicker. I currently have brown hair that is colored and with taking hair supplements this mean my dirty blond roots show a lot faster between touch up which is great but I don't want to dye my hair that often. This PRODUCT WAS WHAT I NEEDED. it not only covers the regrowth but I also feel that it give me texture at the same time at my roots. They also have a color match guarantee and if the color is right they will make sure that you get the right shade for free. amazing amazing company.

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I’m a woman who has been dealing with significant hair loss for about 4 years now due to medical and hormonal reasons. It’s thinnest at the crown/part and, of course, feels devastating. I started using Toppik hair fibers about a year ago which did provide a lot of coverage and a massive confidence boost but was also messy and not ideal for rain or even wind. Even in heat sometimes the toppik would get splotchy on my scalp which was really embarrassing. Still much better than nothing, though. Recently I decided to branch out and try other options and this is so much better than what I’ve been using. The applicator makes for so much less mess (no more dust all over the bathroom or my face). The coverage is great and also more natural. I’m able to get the appearance of an actual part much easier and more natural looking than the toppik. I woke up today after sleeping with it in and it’s actually help up pretty well. Definitely could use a little touch up if you look closely but way less obvious than before.I’m medium brown and matched correctly with my first purchase. This is going to be my go to from now on!

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Due to treatments and the trauma to my body, my hair fell out very badly and became very thin. It was hard to style it without seeing my scalp. I hated it. I decided to try this product and I’m so glad I did!I do not use the little sponge, I use a makeup brush. It can be layered for more coverage but I find that a light layer on the scalp does the trick for me. It doesn’t run or clump when I sweat in the southern heat. I do have to touch it up because I don’t wash my hair every day. I think I need one shade darker though. I have been very happy with this product and will definitely order it again.

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No tapa tanto como dice la publicidad pero queda muy natural y da brillo usando poco producto. Lo compré blanco y estoy feliz

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Incredible product, complete coverage, amazing quality and perfect Grey color. Purchased this product after reviewing several on-line, Boldify stood out amongst the rest. I have thinning hair and bald patches, this product is easy to apply and has amazing coverage. I used a small stiff brush rather than the sponge, this worked better for me and was more precise. Separate hair, "dab small amount" with the brush on the scalp, blend with fingertips. I no longer feel self conscious and no longer fret when the wind blows and separates my hair. This is a life changer for me and will be for you. I have tried many products over the years and there is no comparison. The price reflects the quality.

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This is a great product. It covers the roots perfectly 🙂

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I was skeptical, but I had to change my mind. It works like magic "creating" hairs that were never there. A perfect illusion. You have to guess to correct color though

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Besser wie Sprays, färbt nur etwas ab, wenn man durchgeht, deckt sehr gut.

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Best hair coloring powder of 2025

Updated May, 2025
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Written by Connor Manion
Connor Manion
Connor Manion
Connor Manion is a University of Florida graduate living in the mountains of Northern Georgia. You can find his work among the pages of the Miami Herald, The Olympian, the Sun Herald, and the Fresno Bee. His writing covers a broad range of interests including health and fitness, home improvement, cooking, and pet care. In addition to writing, Connor tutors middle and high school students in math, English, and Economics.
Updated May, 2025
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Buying Guide

When it comes to finding the best hair thickener, it can be a challenge to find the perfect product for you. In this guide, we will discuss the most important factors to consider before purchasing a hair thickener. First, understand the four types of hair thickening products: polyester, keratin, cotton, and synthetic. Polyester fibers are usually made of a fine synthetic material that closely resembles real hair. Keratin fibers are made up of natural proteins that are similar to the ones found in human hair, giving a more natural, shinier look than polyester fibers. Cotton fibers are made from natural cotton fibers and are best for those with sensitive scalps. Synthetic fibers are made from a combination of polyester and nylon fibers. These fibers are more affordable than natural fibers, but offer a less natural look. Once you have chosen the type of hair thickener, select a product that best matches your hair color and texture for a seamlessly natural look. Hair thickening products feature different levels of coverage. Choose one that provides the level of coverage you desire. Since this is a personal investment, consider whether the benefits of the product match up to the price. Last but not least, check the ingredients of the product to avoid scalp irritation. If you have a sensitive scalp, it may be best to use a hair thickener that is 100% plant based. Taking these points into consideration will lead you to the best hair thickening product for your needs.
BOLDIFY Hair Fibers (28g) - Fill In Thinning and Fine Hair for an Instantly Fuller, Thicker Look - 14 Shades for Women & Men - Dark Brown
BOLDIFY Hair Fibers (28g) - Fill In Thinning and Fine Hair for an Instantly Fuller, Thicker Look - 14 Shades for Women & Men - Dark Brown

Featured Products

BOLDIFY Hair Fibers (28g) - Fill In Thinning and Fine Hair for an Instantly Fuller, Thicker Look - 14 Shades for Women & Men - Dark Brown

BOLDIFY Hair Fibers (28g) - Fill In Thinning and Fine Hair for an Instantly Fuller, Thicker Look - 14 Shades for Women & Men - Dark Brown

@BOLDIFY

We love Boldify’s Hair Building Fibers because it offers an undetectable and natural solution to hair thinning or graying hair in both men and women. The fibers are 100% clump-proof and blend seamlessly with your existing hair. On top of that, applying the fibers is simple. Start by washing and drying your hair before use. Then, shake the fibers over the desired areas and pat gently to set it in place for an instant and opaque coverage.

Check Price

Product features

  • Size: 0.98 ounces
  • Color: Dark brown
  • Free of: Phthalate and sulfates
  • Key Feature: Designed with follicle-mimicking molecules

FAQ

How do you remove the hair fibers?

The hair-building fibers are easily removed by shampooing your hair.

How can you enhance the durability of the building fibers?

Set the hair-building fibers with a setting spray to improve weather and sweat resistance.

BOLDIFY Hair Fibers (56g) - Fill In Thinning and Fine Hair for an Instantly Fuller, Thicker Look - 14 Shades for Women & Men - Medium Blonde

BOLDIFY Hair Fibers (56g) - Fill In Thinning and Fine Hair for an Instantly Fuller, Thicker Look - 14 Shades for Women & Men - Medium Blonde

@BOLDIFY

If you are looking for seamless coverage for greying hair, Boldify Undetectable Hair Fibers is the perfect option. This 28g bottle of hair thickening product is made from follicle-mimicking molecules which attach to your existing hair, creating a natural finish to match your hair color. Boldify Undetectable Hair Fibers come with a Color Match Guarantee, so even if you are unsure of which shade to choose, you can still enjoy peace of mind knowing that if the color isn't quite right, you can receive assistance at no additional cost. These Hair Building Fibers are also cruelty-free and sustainably made in an ISO 9001 facility, so you can feel confident buying a safe and affordable product. Plus, application is speedy and simple; wash, dry and style your hair as usual then shake the fibers over the desired areas, pat gently to set in place, and enjoy an instantly thicker look with flawless color. Overall, Boldify Hair Fibers is an incredibly convenient product that provides natural and undetectable coverage for thinning hair while being affordable without compromising on quality.

Check Price

Product features

  • Creates natural camouflage for grey hair
  • Weather resistant and long-lasting
  • Great for short or long hair
  • Easy to wash out when you want

FAQ

Are these 100% natural fibers?

Yes, this product contains 100% plant based fibers that effectively attach to your hair.

Can I use this product in conjunction with my paste sculpting product?

This product works best on dry hair, so make sure any styling products are finished drying before applying the hair fibers.

BOLDIFY Hairline Powder - Root Touch Up Hair Color for Gray Coverage - Bald Spot Concealing Hair Powder for Women & Men - 48-Hour Stain-Proof - Dark Brown

BOLDIFY Hairline Powder - Root Touch Up Hair Color for Gray Coverage - Bald Spot Concealing Hair Powder for Women & Men - 48-Hour Stain-Proof - Dark Brown

@BOLDIFY

Boldify Hairline Powder provides an instant solution to covering thinning or grey hair. Its unique 48-hour guarantee locks in place until you shampoo, offering long-lasting coverage. It is an exceptional alternative to root cover up spray, leaving your hair feeling smooth with no sticky or greasy residue. Unlike other hair toppers and fibers, it is mess proof, making it easy to apply and providing precise coverage. It is perfect for even the busiest of us as the compact mirrored travel kit design makes for quick styling on the go. As an added bonus, Boldify comes with a Lifetime Promise where you can keep the bottle and receive a prompt refund if you are not happy with the product.

Check Price

Product features

  • Easy to use on the go or at home
  • Stays in place throughout the day, no slippage
  • Mineral-infused binding powder.
  • No water necessary for application.

FAQ

Does this root touch up feel sticky?

The light powder coating completely conceals roots with a light and refreshing look that isn’t sticky.

How long does the color last?

Weather resistant, this touch up powder stays secure on your roots until your next shower and shampoo.

Amazon Reviews

Read the review on Amazon
"Came across this product and thought - I put makeup on my face, why not my scalp? As seen from the pictures, my hairline is very obvious and getting worse as I age. The before and after show improvements in the look. My hair is black but dyed dark brown. Got this in dark brown and it blends well. Overall satisfied and happy to recommend the product. Notes - the powder is very fine and can get to the forehead, best to cover it before applying; or carefully clean it afterward or it will look awkward."
Read the review on Amazon
"Boldify actually works. I have always had fine, thin hair, and now that I'm an old lady, it's all white. My scalp shows though in places, especially in the middle of the back where I have a cowlick that parts my hair down the middle. My scalp is actually tanned there because I walk outside a lot and it is always exposed. You can see the spot in the BEFORE photo, and it's totally gone in the AFTER photo, after sprinkling on the white Boldify. I'm thrilled!"
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