What is a hair waver and how does it work?

How a waver works

A waver opens like a pair of straighteners. One side has rounded barrels and the other has matching curves, so when you close it on a section, the hair is pressed into an S-shape. Heat sets the shape, and when you release, the wave stays. You start near the root, clamp for a few seconds, then move the waver down so the top of the new clamp sits in the bottom of the last wave, creating a continuous pattern to the ends.

Because the tool sets the pattern, every section gets the same wave, which is why results look even and polished. Our step by step guide on how to use a hair waver covers technique.

Two barrel and three barrel wavers

Three barrel wavers are the most common and make two full curves per clamp, so they cover length quickly. Two barrel wavers make deeper, sometimes larger waves. Barrel diameter controls wave size: larger barrels make looser, softer waves; smaller barrels make tighter, more defined ones. Some listings give barrel sizes in mm, often in the 22 to 32 mm range. Our barrel size converter turns inches into mm.

Many wavers have adjustable heat. Lower settings suit fine or damaged hair; higher settings help coarse hair hold the wave.

What hair suits a waver?

Wavers work best on shoulder length hair and longer, where the pattern has room to repeat. On long hair, they are often faster than a wand because each clamp covers a wide section. Fine hair holds waves well with a lower setting and a little texture spray. Very thick hair needs smaller sections so heat reaches the middle.

On short hair, there is less length for the pattern, so mini wavers or small barrels work better. A waver is not the same as a crimper, which makes tight zigzags; see hair waver vs crimper.

• Medium to long hair, even waves: waver.
• Natural, undone waves: a large or tapered wand.
• Tight texture and volume: crimper.
• One tool for straight and wavy: straighteners with rounded edges.

Is a hair waver worth it?

A waver is worth it if you love defined waves, find wands hard to use or want a quick routine on long hair. It is less useful if you prefer loose, undone waves, which a wand or straighteners create more naturally, or if your hair is very short. If you already own good straighteners, try curling with straighteners or our beach waves guide before buying another tool.

If you want premium wands for waves instead, see the best curling wands and tongs. For straighteners that wave well, see the best straighteners for curling.

See the best curling wands and tongs →

Safety and care

Wavers are wide, so the heated barrels can touch your forehead, ears or neck if you are not careful. Keep the tool clear of skin, clamp a few centimetres from the root and rest it on a heat proof surface. Use a heat protectant on dry hair. Clean the barrels when cool with a barely damp cloth to remove product build-up, as described in how to clean curling tongs.

Note:Waver barrels get hot enough to burn skin. Keep the tool away from children, never use it on damp hair and unplug it after use.

Frequently asked questions

How does a hair waver work? It presses dry hair between heated rounded barrels and grooves, setting an S-shaped wave that you repeat down the section.

Is a hair waver the same as a crimper? No. Wavers make large S-waves; crimpers make small zigzags.

Can you use a hair waver on short hair? It works better on medium to long hair. A mini waver can work on shorter cuts.

How long should you hold a waver? Usually a few seconds per clamp, less on fine hair. Check your manual for the recommended time.