Hot Brushes · Desk research

Revlon One-Step Volumizer PLUS

A corded hot-air brush that combines drying and styling around a detachable oval head. Four settings and a slimmer handle distinguish the PLUS version from the original format.

Sources reviewed: November 2026

Hair brush and a soft towel in warm light

Editorial illustration, not a photograph of the named model. This guide is based on documentation, not hands-on testing.

At a glance

What the specification says

These are manufacturer-documented details, not measurements from our own bench. Regional packages and terms can differ.

Detail	Manufacturer-documented information
Head	Detachable 2.4-inch oval head
Settings	Low, medium, high and cool
Barrel	Ceramic titanium barrel
Air technology	Hot-air drying and styling with tourmaline ionic technology, according to Revlon
Power format	Corded
Manufacturer warranty	Four-year limited warranty

Who should shortlist it — and who should not

Worth a closer look if

You want to combine airflow drying and brush-guided styling in one tool.
You value low, medium, high and cool settings rather than a single heat level.
You prefer an oval head for root volume, smoothing and slight bends or flips.

Consider another option if

You need a cordless tool or something intended primarily for dry-hair straightening.
You already prefer the control of a separate dryer and styling brush.
You want a compact round brush rather than a larger oval hot-air format.

Beyond the bullet points

What the main features mean in practice

It dries and shapes at the same time

The defining feature is airflow through a brush head. You guide sections while drying them, which can simplify a blowout-style routine. It also means correct use starts with towel-dried, detangled hair rather than the fully dry hair used with many flat irons.

The oval head supports several shapes

The broad sides are useful for smoothing, while the curved edges can help create root lift, bends and flips. A 2.4-inch head covers a meaningful section, but it will not feel like a small precision round brush.

Four settings are a useful PLUS upgrade

Low, medium, high and cool provide more control than a basic on/off heat tool. Medium is the added setting highlighted by Revlon. Cool is useful for finishing without continuing to apply the same heated airflow.

Detachability helps storage, not portability rules

The head releases from the handle for a smaller storage footprint. The appliance remains corded and mains-powered, so detachable construction does not make it a battery or universal-voltage travel tool.

The trade-offs before buying

This is a hot-air brush for damp hair, not a cordless straightener or a conventional dry-hair brush.
Four settings provide more control than a single-setting tool; start with the lowest suitable setting for your hair.
The detachable head helps with storage, but the overall format is still larger than a regular brush.
Manufacturer comparisons about shine, time and heat exposure rely on the brand's own stated test conditions and should not be treated as universal results.

Compare the format

Alternatives worth considering

An alternative is not automatically better. It simply shifts one or more trade-offs that may matter more to you.

Alternative	Why it belongs in the comparison
Revlon Salon One-Step Hair Dryer and Volumizer	The original format has a non-detachable head. Compare it with the PLUS if you do not need detachable storage or the additional medium setting.
Drybar The Double Shot	Another 2.4-inch oval hot-air brush, with cool, medium and high settings. It is a useful comparison if you want a similar format but a different handle, bristle design and control layout.
A separate dryer and round brush	More coordination and storage, but each part can be chosen independently. This route may suit you if nozzle control, brush diameter or dryer handling matters more than one-tool convenience.

Use and care

A practical routine from the documentation

1Towel-dry and detangle hair before styling. Avoid using the hot-air brush on dripping-wet hair; removing excess water first makes sectioning more manageable.
2Divide hair into sections and select the lowest setting that can dry and shape them effectively. Use the cool setting to finish when appropriate.
3Guide the brush steadily through each section rather than holding hot airflow in one place. Use the oval edges when you want a bend or extra root lift.
4Unplug after use and allow the head to cool before detaching or storing it. Follow the manual for filter and barrel cleaning rather than immersing the appliance.

The product manual and local safety instructions always take precedence over this summary.

Questions worth asking

Is the One-Step Volumizer PLUS a straightener?

No. It is a hot-air dryer brush. It can smooth and shape while drying, but it does not clamp hair between heated plates like a flat iron.

Can it be used on completely dry hair?

Its core purpose is drying and styling damp hair. Using it only as a dry-hair styling brush would ignore the main function of the appliance; follow the product manual for appropriate use.

What is the advantage of the detachable head?

It separates from the handle for more convenient storage. It does not turn the dryer into a cordless appliance or eliminate the need to let the head cool before handling.

What does the cool setting do?

It provides unheated or cooler airflow for finishing the style without continuing the same heated drying pass. It is one of four settings: low, medium, high and cool.

Sources

Product specifications and usage notes are based primarily on manufacturer documentation. Brand performance claims are not presented as independent test results.