These rods are for anyone giving or getting a cold wave (chemical) perm — a licensed stylist working in a salon or an experienced at-home user who already has cold wave lotion and neutralizer on hand, since the rods themselves don't include or apply any chemical.

Because the White size wraps a longer section of hair per rod, it suits people going for a looser, more relaxed curl or wave rather than tight ringlets; anyone wanting a tighter curl pattern should look at BaByliss Pro's shorter or jumbo cold wave rods instead. The rods work on hair of any color — 'White' refers to the rod's length code, not the hair it's meant for.

The main reason to reach for these over a heat tool is that a cold wave perm reshapes the hair's internal bonds with a chemical lotion rather than heat, so the curl pattern typically outlasts a wash in a way that curling-iron curls don't. The rod's job in that process is purely mechanical: hold the hair in a curved shape with even tension while the lotion works, and let the lotion move through the wrap instead of sitting on top of it. The vented, ridged design here is built for that saturation step specifically, which is what keeps a perm from processing unevenly from one section to the next.

These rods don't generate heat or set a timer on their own — the cold wave lotion and neutralizer you use with them control the actual process, so always follow that product's instructions for saturation amount and timing.

• Shampoo the hair and towel-dry; skip conditioner beforehand, since it can coat the hair and block even lotion penetration.
• Section the hair into subsections sized to match the rod's length.
• Apply cold wave lotion to the first section, then wind the strand around the rod from the ends toward the roots, keeping even tension.
• Secure the wrap with the rod's rubber band and button.
• Repeat until all sections are wrapped, then saturate the rods with any remaining lotion as directed on the lotion's packaging.
• Process for the time specified on the cold wave lotion, rinse, and apply neutralizer while the rods are still in place.
• Remove the rods and rinse thoroughly before styling.

Pros

• Wide, vented slots along the barrel let cold wave lotion and neutralizer soak through the wrapped hair instead of just coating the surface, reducing under-processed spots.
• The rubber band and button closure holds each wrap under tension for the whole processing time without needing extra clips.
• Latex-free rubber bands lower the chance of a reaction for people with a latex sensitivity.
• Hard plastic construction rinses clean and can be reused for multiple perm services.

Cons

• The long rod length gives a looser wave, not a tight curl — it's the wrong size if the goal is small, defined ringlets.
• The rods hold no chemical themselves, so cold wave lotion and neutralizer have to be bought separately.
• There's no timer or heat cue built in; how the curl turns out depends entirely on wrapping tension and how closely the processing time on the lotion package is followed.
• Wrapping too tightly near the scalp can pull on hair and skin, so it takes some practice to get comfortable tension.