- ADVERTISEMENT - Flight Centre Category Header
Thursday, August 13, 2026

Capsule Considers: A Straightener That Promises NO Heat Damage? Our Honest Review of the ghd Sculpt, an AI-Forward Tool That Seems Too Good to Be True

- ADVERTISEMENT - Flight Centre Post Page Ad Top

Kelly Meharg reviews the ghd Sculpt: Is the price tag actually worth it, and does it really do no damage? Welcome to Capsule Considers, where we try out and review the latest products on the market and offer our honest, unbiased opinions, free from any obligation or expectation because if you’re parting with your hard-earned money based on any of our recommendations, we’re gonna make sure it’s damn well worth it!

Like most Kiwi millennials, I consider myself a connoisseur of hair straighteners – and from the mid-2000s side-part slicked-back emo-adjacent disasters through to today’s attempts to make grey hairs blend in a little better with some well-placed waves, my ghds have been by my side for most of it.

We all remember the OGs that were like the Nokia 3310s of hair tools – indestructible, reliable and genre-defining.

From there, we’ve tutū-ed with the Platinums, the Chronos and other models, and even though I’ve expanded my hair tool chest with the likes of my beloved Shark FlexStyle and even mermaid crimpers when I’m feeling jazzy, just like that pair of jeans I always take on holiday even though I know the temperature won’t drop below 26°C, the old faithful ghd has been in the drawer, ready to be called into action.

Which leads me to their newest release, and one that, says ghd, will change the game completely. Pulling it out of the box, it definitely doesn’t look like the ghds of old.

The ghd Sculpt – what is it, what’s new and why should I care?

Let’s talk about the claim doing all the heavy lifting on the box: zero damage. It’s a big swing, because we’ve all accepted heat damage as the tax we pay for sleek hair, and while others have promised to minimise heat damage, ghd are the first to come out of the gate with a bold ZERO.

Here’s what it actually means – rather than blasting your hair with a fixed plate temperature, the Sculpt reads the temperature of your hair itself, taking 2,900 measurements a second and adjusting the heat as you go. It’ll max out at 185°C, but if your fine, freshly washed lengths don’t need that much, it dials down. The “zero damage” bit refers to the natural structure of your hair, which ghd says the Sculpt is scientifically proven not to harm. How? AI, ofc.

Just like the rest of your life, AI is here to infiltrate your haircare and we are here (hair?!) for it. The Sculpt is ghd’s first AI tool and its tech allows the temperature to be monitored thousands of times a second (so… my hair straightener is now smarter than me?!). ghd also claim that the Sculpt will style your hair up to five times faster, and that your finished style will last between 24 and 48 hours.

The fine print worth knowing though – that claim doesn’t cover split ends. One UK journalist who visited ghd’s Cambridge lab pressed them on exactly this, and the team’s answer was that repeat testing showed no increase in split ends, but the tool can’t undo the ones you’ve already got. Fair enough – no straightener is a time machine (unfortunately!). Also worth knowing: this is a dry-hair-only tool, so no attacking your damp lengths straight out of the shower.

The Sculpt is also, visually, way different to models gone by. Gone is the familiar cylindrical body we’ve all owned for ages – this one is slimmer, curvier and so light I initially wondered if they’d… forgotten to put the insides in.

Turns out, they sort of had. Deliberately, ghd has shifted as much of the internal componentry as possible out of the styler and into the plug, which is why the tool weighs next to nothing and the plug looks like it’s been to the gym. It’s a trade-off I can live with – but if you were using your hair styling time as an arm workout, sorry gal, those days are gone.

The other reason for the shape is the technology itself. Because the Sculpt’s AI is adjusting heat thousands of times a second rather than relying on chunky plates held at a constant temperature, ghd could make the whole thing smaller and more precise. And they’ve spent that precision wisely, on the two places straighteners have always failed us: roots and curls.

The slim plates run almost to the edge of the tool, so you can get right into the regrowth and those baby hairs at the front that usually live their own life. And the curved “waterfall” edge is designed to stop hair slipping out mid-pass, which is why curling with it feels weirdly easy, even if you’ve spent two decades being personally victimised by the twist-and-flick technique.

One thing to note: the Sculpt only comes in one plate size, a slim 26mm, so there’s no max-style wide option for now. If you’ve got a thick mane and have sworn by wider plates, don’t panic just yet, because that five-times-faster claim is doing a lot of work here (and it held up in my testing, more on that below).

Our review – what did we think of the ghd Sculpt?

First impressions? Opening the box my first thought was ‘what the hell is this!?’. The shape is so different to anything I’ve seen or used before, and the lightness almost takes you aback. I was intrigued. It’s also ready to go in 20 seconds, which is roughly the time it takes me to find where the dog has hidden my hairbrush.

I tested this on my freshly-washed, in-desperate-need-of-a-cut-and-colour hair. I have fine hair but lots of it, and it’s usually Monica-in-Friends-level prone to humidity. I also have a huge amount of baby hairs at the moment for some weird reason, and a tonne of split ends. In short, my hair isn’t in great nick because I missed my last salon appointment, and I’ve been too busy with our new puppy to give a shit. So, if you’re a busy gal who has neglected her hair a little over the past wee while, this review is for you!

My freshly-washed and dried frizz fest

I decided to do an OG straighten first, figuring it was a true and faithful way to begin. As I pulled the plates down my hair strands, the feeling was like silk. No tugs, no resistance, just… gliding. (One UK tester reported the occasional mid-pass snag, but I didn’t experience a single one.)

It took me six minutes to straighten my whole head, which is definitely quicker than my usual attempts, and when I tell you it was stick straight, I felt like I needed to find my black eyeliner pencil and head to Rockquest. Simply, it does what it says on the tin. My baby hairs were a little more reined-in, but they still featured quite heavily on the top of my head, but I don’t think I can blame the tool for that one, there’s just so many of them! I’ve been using a no-fly-away balm that works wonders, but in the interest of this review I’ve left them as-is for the pics.

After straightening

While I appreciate the result of the sleek locks, I don’t wear my hair straight almost ever, so I wanted to give my usual style – loose waves – a crack too.

The biggest learning with this is that you don’t have to hold the hair in the tool for nearly as long to get a tight curl – just a couple of seconds does the trick, which left me open-mouthed. I managed to do my whole head in a ridiculous five minutes. Gagged.

Loose waves

ghd say that the waterfall edges help keep the hair in as you pass it through, and it definitely helps, as does turning the tool a full 360 and pulling down vertically – I lost a bit when I forgot that second turn, but I think that’s user error (I know it is actually, I’m so much better at doing the right side of my head than the left!?).

And as I’m writing this hours after curling and after getting caught in a shower trying to make the dog come back inside, the waves are just as defined and frizz-free as they were when I did them. ghd claims styles last 24 to 48 hours, and based on my hair surviving actual Auckland rain, I’m inclined to believe them.

But I already own a ghd… should I upgrade?

The question every Kiwi woman with a perfectly functional pair of 2015 ghds in the drawer is asking. Here’s my honest take: if your current straightener is still going strong and you style your hair straight once a fortnight, you don’t need this. The old girls will keep doing their job, as they always have.

But if you’re a regular heat styler, if your hair is coloured, fine or already showing damage, or if you’ve always wanted to master curling with a straightener but gave up somewhere around 2012, the Sculpt is a genuine leap rather than a shuffle forward. The speed, the weight and the heat protection are the kind of upgrades you feel every single time you use it, not just on launch day.

Our final verdict: Is the ghd Sculpt worth it?

Ah, the elephant in the room – the price. I’m not going to lie, this tool sits very firmly in the luxury end of the market, at $629. There’s no getting around that it’s a bloody expensive hair straightener, and with technology evolving at a ridiculously rapid rate, maybe this will come down soon. But if you’re someone who uses styling tools on the regular but also wants to protect their hair from heat damage and actually spends a huge amount on doing so, then yeah, I’d say this is worth it.

Less money on fixing damage in the long run could help girl-math this into ‘it’s worth it’, and I do think the results speak for themselves. I also love the white colourway – it looks chic on my bathroom counter – and I think the ease of being able to curl and wave adds into the value prop too.

The ghd Sculpt is available now in black and white, RRP $629, through leading salons, premium retailers and ghdhair.com.

- ADVERTISEMENT - Flight Centre Post Page Bottom

So You’re a Fan of ‘Cape Fear’? Here’s 5 Terrifying TV Shows to Watch Next…

Okay, so you’ve just binge-watched the latest Apple TV hit, Cape Fear, and now have no idea what to watch next? Here are a few...

Feeling Chilly? Here’s the 10 Best Winter Buys – Many Are on Sale! The Toastiest Leggings, Slippers, Puffers and Tricks for Getting Toasty Fast…...

If the cold snap has sent you shivering - and feeling like you need a few more items in your arsenal to defeat the...

Pretty Interesting With Kim Crossman: ‘Meet the Woman Who Leaves a Trail of Glitter Wherever She Goes…’

Welcome to my new column, Pretty Interesting! Capsule has given me the opportunity to write about some truly epic humans I have met who...

Miso, Maple Syrup And One Mystery Container: What’s Actually In The Average Kiwi Fridge

It's the night your My Food Bag has run out, there's no plan, and you're standing in front of an open fridge door hoping...