It should come as no surprise that styling your hair with heat — straightening irons, sometimes you called this flat iron in particular — can potentially damage it.
Yet if you’re anything like me, the only time you give this any thought is when you apply your straightener Iron or Flat iron to a section of your hair, forgetting you just got out of the shower, and tssss! You hear that telltale sizzle.
Hands up if you've ever cranked up the temperature dial because it felt like your straightener wasn't having any effect? It seems logical that adding more heat will make your hair respond and style better, but it can actually really harm it.
So what's the magic temperature? Research points to 185 degrees. Platinum operates constantly at this heat with no option to go higher. It sounds unbelievable, but in their research ghd found this temperature actually improved the health of hair.
Any woman with thick or very curly hair will tell you it takes quite a lot of effort (and elbow grease) to style it. But again, adding more heat isn't going to help — the structure of hair doesn't change according to its thickness, so even the bushiest mane is susceptible to the perils of too much heat. However, thicker hair does have slightly different requirements to fine hair.
If you've ever experienced snagging while straightening, chances are this was a result of the plates cooling off by the time they reached the tip of your hair.
One thing we discovered thought testing is that if you apply too much pressure while styling hair, or you pull your hair too much, it causes more damage. Often this happens because we assume it'll make for more effective straightening; or because we're trying to compensate for unstable heating plates that can slip as they're pulled or twirled through a section of hair.
The last thing you want when you're running a straightener through your hair is friction — this can cause (painful!) snagging and potentially breakage. This friction typically results from the straightener plates being uneven, poorly aligned or a bit rough on the surface.
To overcome this, the hot plates on ghd platinum have a low-friction coating that contains natural oils, which smooth the hair as you're using it.