★★★★★
4.9 based on 479+ reviews
Hair Density Filler
Hair Density Filler
THE ROOT FIX Hair Density Filler instantly adds volume and thickness to thinning hair. Its lightweight, natural-looking fibers cling to each strand, creating fuller, thicker hair in seconds — perfect for a confident, salon-ready look anytime.
Natural Finish – Blends seamlessly, no clumps
- Instant Volume – Fuller hair in seconds
- All-Day Hold – Stays until shampooed out
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Natural Formula
Nano-Fiber Density
Sweatproof Waterproof
Facial Hair Approved
Description
Description
THE ROOT FIX Hair Density Filler is specially designed to instantly transform thinning hair, bald spots, and wide parts into a fuller, thicker appearance. Using electrostatically charged keratin fibers, it clings seamlessly to your existing hair, creating natural-looking volume in seconds. Ideal for all hair types, this lightweight powder provides all-day hold, giving you confidence without the need for styling gels or sprays. Compact and easy to use, it’s perfect for daily styling or touch-ups on the go.
Features
- Instantly adds visible thickness and volume
- Lightweight keratin fibers that cling naturally
- Quick, mess-free application with a shaker design
Benefits
- Conceals thinning areas effortlessly
- Creates a natural, fuller look
- Safe for daily use on all hair types
How to Use
- Apply the powder-like filler to dry hair in thinning areas.
- Gently tap or brush to distribute evenly.
- Style as usual — lasts all day until shampooed out.
Specifications
- Form: Powder-like keratin fibers
- Net Weight: 20g
- Hair Type: All hair types
- Shelf Life: 3 years
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Supply: Approx. 1 week per unit
Our Guarantee
We’re confident you’ll love your THE ROOT FIX product. That’s why we offer a 30-Day Confidence Guarantee — if you’re not fully satisfied, simply return it within 30 days for a full refund.
Shipping
Shipping
Say goodbye to delivery charges! All THE ROOT FIX orders come with free shipping, ensuring your hair solutions arrive quickly and safely because great hair shouldn’t wait.
Our Guarantee
Our Guarantee
We’re confident you’ll love your THE ROOT FIX. That’s why we offer a 30-Day Confidence Guarantee — if you’re not fully satisfied, simply return it within 30 days for a full refund. Your confidence is our priority.
- FREE Shipping & Returns
- 30 Days Confidence Guarantee
- Safe & Secure, FDA Cleared
Discover THE ROOT FIX Advantage
At THE ROOT FIX, we believe hair care should be simple, effective, and empowering. That’s why we’ve created innovative solutions like the Hair Dye Comb for instant gray coverage and the Hair Density Filler for fuller-looking hair in seconds. Together, they bring you natural results, salon-like confidence, and a brand you can trust — all from the comfort of home.
Instant Transformation
Get salon-quality results in minutes. Whether you’re covering gray roots or adding volume to thinning areas, THE ROOT FIX products deliver immediate, natural-looking improvements.
Gentle & Effective
Our formulas are designed to care for your hair and scalp — no harsh chemicals, no damage, just smooth application and results you’ll love.
Brand You Can Trust
THE ROOT FIX isn’t just about products — it’s about confidence. With reliable, easy-to-use solutions, we help you look your best every day.
Before
After
From Sparse to Stunning in Seconds
Experience the power of the THE ROOT FIX Hair Density Filler. Our lightweight fibers bond seamlessly with your natural hair to create instant fullness and coverage. The result? A natural, voluminous look that turns thinning areas into confidence-boosting style — visible right before your eyes.
With every application, THE ROOT FIX Hair Density Filler delivers a flawless, natural blend — no clumps, no streaks, just fuller-looking hair that lasts until your next wash.
What People Love About THE ROOT FIX
Works Like Magic!
I was surprised at how quickly this product covered my gray roots. The built-in applicator is so easy to use, and it blends perfectly with my natural hair.
Sarah M
Instant Confidence Boost
The Hair Density Filler gave my thinning hair so much volume. I finally feel confident wearing my hair down again. Truly a game changer!
Daniel K
Effortless Grey Root Coverage
This compact comb-dye solution has become my go-to when I’m on the move. I apply it where regrowth shows, blend with the comb, and head out looking polished instead of rushed. It’s exactly what a busy lifestyle needs.
Scarlett
Natural Finish
I love that it doesn’t look like I’ve just dyed my roots—it just looks like I don’t have those visible greys anymore. The finish is natural, my scalp felt comfortable, and I walked out feeling good about my hair.
Amy
Quick Fix, Great Results
I travel a lot for work, and this is the perfect product for touch-ups on the go. No mess, no stress — just instant coverage.
Amanda L
Natural Look Every Time
I’ve tried other products, but nothing looks as natural as this. People can’t even tell I’ve used anything, it just looks like my own hair.
