Stretch the section thin against the brush”: the hairdresser’s trick for a perfect blowout
Twenty minutes with a round brush, a hairdryer on full blast, and the end result looks nothing like what you had in mind: one side puffed up, the other flat, and frizz everywhere. Yet a few hairdresser’s tricks are all it takes to completely change the game, without ever leaving home.
The right tools: the first hairdresser’s trick to remember
Before you even pick up a brush, your choice of tools determines everything else. Your hairdryer needs to be fitted with a concentrator nozzle: this attachment channels the airflow in one precise direction instead of scattering it everywhere. In practice, air directed from roots to ends smooths the cuticles rather than ruffling them.
The diameter of your round brush then plays a decisive role. A small diameter works well for lifting a fringe or creating tight curls. A large diameter, on the other hand, produces a soft, voluminous blow-dry on medium to long hair. A few clips to section the hair, a comb for parting, and a paddle brush for finishing touches round out all the kit you need.
On the product side, a smoothing shampoo and conditioner duo preps the hair from the shower. Follow up with an anti-frizz treatment or smoothing oil on the lengths, then a heat-protectant spray before you start drying.
Adapting the method to your hair type
This hairdresser’s trick doesn’t apply in exactly the same way to every hair type. Here are the practical adjustments to make:
- Fine hair: opt for medium heat and a large brush to build volume without weakening the hair.
- Thick hair: work with even smaller sections and allow more drying time, keeping the hairdryer from getting too close.
- Naturally wavy or curly hair: the result tends to last a little less time than on straight hair.
- Naturally straight hair: a well-executed blow-dry typically holds for two to three days.
These adjustments help you avoid the two most common mistakes. The first is scorching fine hair with too much heat. The second is leaving thick hair insufficiently dry, which causes the volume to collapse within hours.
The step-by-step technique for a blow-dry that lasts
Pre-drying is a step many people skip. The idea is to dry your hair with the hairdryer until it is about 80% dry before picking up the brush. That level of residual moisture keeps the section manageable, not too heavy, not too dry.
Start at the nape, with the rest of the hair clipped up. The central rule of this hairdresser’s method is to work with thin sections of around 2 to 3 cm: a section that is too thick won’t sit properly on the brush. Place the brush at the root, lift to create volume at the base, then glide down to the ends while keeping the section pulled taut. Hold the hairdryer 10 to 15 cm away from the section, nozzle pointing downward.
At the ends, a quarter-turn of the brush inward creates a classic curl-under finish. Roll the section further and you get a wavy effect. Finish each section with a blast of cool air to set the shape. Repeat zone by zone, working your way up to the top of the head.
Why this hairdresser’s trick is having such a moment in 2026
From red carpets to social media, ultra-glossy lengths and controlled volume are everywhere this year. This renewed enthusiasm for the sleek, voluminous blow-dry explains why so many people are trying to recreate the look at home.
A blow-dry remains one of the hardest styles to nail without clear guidance. Between frizz, poorly chosen tools, and sections that are too thick, the pitfalls are many. Mastering hairdresser’s tricks means achieving a professional result without stepping outside your front door. Follow each step in order, from pre-drying to the final cool shot, and the difference is concrete and visible from the very first attempt.
