Heat styling isn't the enemy — uncontrolled heat is. The difference between hair that styles beautifully for years and hair that turns brittle isn't whether you use hot tools; it's what temperature you use, on what hair, how often, and what you do before the heat touches a single strand. Here's the guide we wish came in every box.
The master temperature table
| Hair type | Straightener | Curler | Dryer |
|---|---|---|---|
| Fine or chemically treated | 130–150°C | 140–160°C | Low–medium heat, high airflow |
| Normal, healthy | 150–180°C | 160–180°C | Medium |
| Thick or coarse | 180–200°C | 180–200°C | Medium–high |
| Curly, returning to natural | Avoid >170°C | — | Diffuser, low heat |
The principle: use the lowest temperature that achieves the style in one pass. One pass at 170°C does less damage than three passes at 140°C — repeated passes are the silent killer.
Why high-speed dryers changed the damage equation
Traditional dryers rely on heat; high-speed ionic dryers like the COSHARE SuperFlow SE rely on airflow. More air at lower temperature means water leaves your hair before heat can degrade it — and the negative ions close the cuticle for shine. If your hair is already fragile, switching the dryer is the single biggest damage reduction available — bigger than any serum.
The five habits that matter more than the tool
- Bone-dry before hot tools. Straightening damp hair literally boils water inside the strand — that crackle is damage you can hear. Dry fully first (a SuperMini does it in minutes).
- Heat protectant, every time. It buffers the cuticle and buys you 10–20°C of safety margin.
- Ceramic surfaces only. The Kemei ceramic straightener (R250) and Kemey curler set use ceramic coatings that distribute heat evenly — no hot spots scorching random sections.
- Rest days. Two heat-free days a week lets the cuticle recover. Embrace the bun.
- Trim regularly. Heat damage climbs upward from compromised ends; trimming stops the spread.
Signs you're running too hot
- Hair sizzles or steams audibly
- A faint burnt smell during styling
- Style won't hold despite more heat (protein structure already compromised)
- Ends look translucent or feel like straw
If two or more sound familiar: drop 20°C, add protectant, and give your hair a fortnight of gentle treatment. It recovers more than you'd expect.
Frequently asked questions
Is 230°C ever necessary?
For salon keratin treatments, applied by professionals — yes. For home styling — essentially never. If your style needs 230°C to hold, the problem is technique or damp hair, not insufficient heat.
Do adjustable-temperature tools really matter?
They're the whole game. Fixed-temperature budget tools usually run at 200°C+ for everyone — which is why they have a reputation for frying hair. Every styling tool we stock has adjustable temperature control.
What about humidity — Durban vs Joburg?
Humidity reverses styles by re-opening the cuticle. Ionic drying helps seal it; a light finishing product helps more. In coastal humidity, lower-heat styles that work with your texture outlast fighting it.
Style smarter
Every dryer, straightener and curler in our Beauty range has adjustable temperature control — browse the full collection, delivered tracked anywhere in South Africa in 2–5 days.