If you’ve ever scrolled through TikTok wondering how creators manage to achieve those bouncy, glossy, salon-fresh blowouts at home, you’re definitely not alone. The real secret isn’t some hidden styling hack—it’s the brush. More specifically, it’s the round brush. This simple, no-frills tool is a staple in every professional stylist’s kit. It may not look flashy, but it’s responsible for the smooth volume, polished finish, and effortless movement you see in expert blowouts.
According to salon owner Jerome Lordet, barrel size makes all the difference. Larger barrels help create smooth volume and airy, straight ends, making them ideal for longer hair or classic blowout styles. Smaller barrels, on the other hand, deliver more curl, bend, and root lift, which works best for shorter cuts or adding movement through mid-lengths.
The Styling Tool That Elevates Your At-Home Routine
A great round brush is your shortcut to high-volume, model-level hair. When paired with a reliable hairdryer, it transforms your blow-dry routine into something quick, effective, and surprisingly easy. Once you choose the right brush to create the best shape, movement, and lift, says hairstylist Meri-Kate O’Connor, you’re set. Below are some standout options to help you upgrade your styling game.
Our Top Picks for the Best Round Brushes of 2025
Drybar Ceramic Round Hair Brush
This lightweight brush stands out for its smooth glide and comfortable grip. Even with its larger barrel size, it feels easy to maneuver and never tugs at the hair. The ceramic-coated barrel gently heats during blow-drying to enhance volume, while the bristles smooth strands and boost shine.
- Bristles: Nylon
- Best for: Straight, wavy, and curly hair
ghd Ceramic Radial Hair Brush (35mm)
This smaller-diameter brush is a go-to for short hair and bangs. It provides strong lift at the roots and helps shape layers that might otherwise fall flat. It’s also a great option for longer hair if you’re aiming for tighter curls instead of a sleek finish.
- Bristles: Nylon
- Best for: All hair types, especially short hair and fringe
T3 Volume Round Hair Brush
If fine or flat hair struggles to hold volume, this brush can help. Its stiffer bristles create noticeable lift and shape, especially near the roots. The two-inch size works well for short to medium hair that needs extra body.
- Bristles: Nylon
- Best for: Fine or flat hair types
Moroccanoil Ceramic Paddle Brush
This brush offers excellent control thanks to its ceramic and ionic technology, which helps distribute heat evenly, reduce drying time, and enhance shine. A hidden sectioning tip adds extra convenience during styling.
- Bristles: Nylon
- Best for: All hair types
Mermade Hair Thermal Brush
For anyone who prefers a low-effort routine, this heated thermal brush combines brushing and styling into one step. It heats quickly, smooths frizz, and delivers a blowout-style finish in minutes.
- Bristles: Nylon
- Best for: Straight and wavy hair
AIMIKE Round Hair Brush
This budget-friendly option proves you don’t need to splurge for results. With a large barrel and mixed bristles, it smooths thick hair easily while helping distribute natural oils for added shine.
- Bristles: Nylon and boar
- Best for: All hair types, especially thick or long hair
Hair Rituel by Sisley N2 Blow-Dry Brush
This luxurious brush is designed for soft, beachy waves. Made with a wooden handle and gentle boar bristles, it’s especially kind to fine or damaged hair.
- Bristles: Boar bristles with nylon tips
- Best for: Straight and wavy hair
Ibiza Hair Eco Cork Round Brush
This brush is favored for damaged or brittle hair thanks to its soft, flexible bristles. The blend of boar bristles and carbon fiber helps distribute natural oils evenly, leaving hair smoother and shinier.
- Bristles: Natural boar and carbon fiber
- Best for: Fine or damaged hair
How We Tested the Best Round Brushes
Cosmo editors regularly test hair tools to identify top-performing products. Each brush on this list was personally tested and evaluated based on performance, ease of use, comfort, and long-lasting results. Reviews from consumers were also analyzed to identify consistent strengths and weaknesses.
What Are Round Brushes Used For?
Round brushes are incredibly versatile tools used for blow-drying, smoothing, curling, and adding volume. Larger brushes help stretch and smooth hair, while smaller brushes shape ends, lift roots, and define bangs.
Are Round Brushes Suitable for Curly Hair?
Round brushes can help smooth and stretch curly hair during blow-drying, but they’re not ideal for detangling tight curls. It’s best to detangle first with a flexible brush, then use a round brush with soft, natural bristles for styling.
How to Use a Round Brush Properly
Start by detangling your hair and allowing it to air-dry to about 80 percent. Work in small sections to reduce heat exposure. Place the brush at the roots, keep tension as you pull downward, and follow closely with your blow dryer to smooth and shape each section.
How to Choose the Best Round Brush for You
Barrel size matters: Smaller barrels create tighter curls, while larger barrels smooth and straighten. Medium sizes offer a balance of volume and polish.
Match your hair texture: Natural bristles suit fine and curly hair, while mixed bristles work well for coarse textures.
Check for smart features: Vented ceramic barrels speed up drying, while metal barrels enhance volume. Avoid brushes with plastic tips that can snag and damage hair.
