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Heat-damaged hair: protect and repair
Straighteners, curling irons, blow-dryers ā they all take a toll. Here's how to undo the damage and prevent more.
How heat damages hair
Heat tools work by temporarily reshaping the hydrogen bonds inside each strand. Above 150Ā°C, the protective cuticle layer starts to lift and crack. Over time, this leads to:
- Moisture loss ā hair feels dry and brittle
- Split ends and mid-shaft breakage
- Loss of natural shine and elasticity
- Colour fading faster (heat opens the cuticle, releasing pigment)
What heat-damaged hair needs
You can't fully reverse heat damage ā but you can repair the surface, restore moisture, and protect against further harm. The right routine makes a visible difference within weeks.
Heat protection
Always apply a thermal protectant before using any heat tool. Non-negotiable.
Deep repair
Weekly masks or treatments that reconstruct the cuticle and seal in moisture.
Lower temperatures
Most hair types don't need 230Ā°C. Drop to 160ā180Ā°C and let the product do the work.
Common mistakes
- Skipping heat protectant because "it's just a quick touch-up"
- Going over the same section multiple times with a flat iron
- Using maximum heat on fine or bleached hair
- Relying only on oils ā they add shine but don't repair structure
Product picks from Duris Beauty
J Beverly Hills Platinum 5 in 1 Styling Emulsion
Multi-tasking styler with heat protection, smoothing, and shine.
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NYCE Beautox Express Mask
Deep reconstruction for heat-stressed, over-processed hair.
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Oyster Cosmetics CUTINOL Argan & Marula Mask
Intensive nourishment to restore softness after heat damage.
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J Beverly Hills Glaze Me Light Styling Gel
Flexible hold with thermal protection for blow-dry styling.
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