If you use a straightener, curler or blow-dryer, a heat protectant isn't optional — it's the cheapest insurance your hair will ever get. Heat is one of the biggest causes of frizz and damage, and a good protectant noticeably reduces it. Here's how to choose.
What a good heat protectant does
- Shields to the right temperature — it should protect up to at least the heat of your tools (most run 180–230°C).
- Goes on light — no greasy, crunchy or sticky finish.
- Adds slip — so the tool glides and you do fewer passes (less heat overall).
- Conditions a little — bonus smoothing and shine.
How to choose for your hair
| Your hair | Best format |
|---|---|
| Fine / oily | Lightweight spray |
| Thick / coarse | Cream or richer spray |
| Curly | Cream for more moisture + definition |
| Coloured / treated | Spray with UV + colour protection |
Check the label for the protection temperature and match it to your hottest tool. And remember: a protectant only works where it's applied, so coat the hair evenly before any heat.
Our specialist picks
- Salon-grade — Wella EIMI Thermal Image: a fine, even spray that protects up to high styling temperatures.
- Premium — ghd Bodyguard Heat Protect Spray: lightweight, trusted protection for hot tools.
- Budget staple — TRESemmé Heat Defence: excellent everyday protection at a great price.
Use it the right way
- Apply to damp hair before blow-drying, and again on dry hair before a straightener or curler.
- Lower the heat — most hair doesn't need the maximum setting.
- Do fewer passes with the iron.
Pair it with a sulfate-free shampoo and a silk pillowcase for a full low-damage routine. Already damaged from heat? See how to repair damaged hair — or book a repair treatment in Belfast or Carrickfergus.
