After years of having short hair, my mane is finally long again, so I’ve been having a blast trying different styling options. My favourite is a blowout, but it tends to fall flat after I sleep on it, requiring a re-style the following day. Since I don’t want to do a full, comprehensive blow-dry routine daily, I went looking for other options and discovered the K&K Thermal Heated Round Brush.
Here are my thoughts.
My experience using the K&K Thermal Heated Round Brush
The K&K Thermal Heated Round Brush comes in three different barrel sizes, ranging from 1.25 to 1.77 inches. Since I have longer hair and was looking for a smooth, blowout-style wave, I opted for the largest model.
I’ve developed a pretty solid routine with it over the past few weeks, and it’s become second-nature to me. I always spritz my hair with my Marc Anthony Grow Long Anti-Frizz Shield and give it a quick blow dry before putting the thermal brush to work. Since it’s not a blow dryer, applying heat directly to damp hair would be more damaging, so I’m pretty thorough.
Using it is easy as ever; you plug it in, adjust the temperature to your liking (I like to stay around 350°F, and it heats up in under two minutes), then go about using it like your average round brush.

I like to split my hair into 2-inch sections, starting from the bottom and maneuvering through each layer until I reach the top. I also add tension at my roots to give them a little boost of volume. This whole routine takes me less than 10 minutes.
Word to the wise: sectioning matters with this brush. If I take a section that’s slightly too big, I find that a strand of hair or two can get stuck in the area between the barrel and the handle. This is a bit uncomfortable and not ideal, so just be mindful when styling.
After letting my hair cool down, I usually brush it with a wide-tooth comb, which gives it a fluffy vintage blowout look. I also like to mist it with a bit of Kenra Professional Volume Spray 25 to add hold. Each style I’ve tried looks good for hours, and the results last in my hair as long as a regular blowout, so I get about the same payoff, even on slightly dirty hair.

Is the K&K Thermal Heated Round Brush worth it?
The K&K Thermal Heated Round Brush has become my go-to styling tool for reviving second-day hair, and I use it multiple times a week. I think this is a great tool to have on hand for people with straight and curly hair, and since it’s dual voltage, it would even be great to bring on vacation instead of a blow dryer and an iron. I’ve tried thermal brushes that cost double the price, and they don’t perform as well, so it’s a winner in my eyes.
K&K Thermal Heated Round Brush Pros
- Affordable price point
- Heats up fast
- Boosts volume at the root
- Smooths frizz
- Gives hair bounce and a slight wave
K&K Thermal Heated Round Brush Cons
- Hair can snag in the handle
What reviewers are saying about the K&K Thermal Heated Round Brush
The K&K Thermal Heated Round Brush has an average reviewer rating of 4 stars across more than 1,700 reviews. Buyers love how fast it heats up and how quickly and efficiently it makes doing their own hair. Reviewers with curly hair praise how well it smooths their strands and completely prevents frizz throughout the day. There are even a few reviews from people with shorter haircuts that say it works just as well on their hair as it does on longer locks, so it’s truly a hair tool that works on just about anyone.






