Hot Tools 24K Gold Extended Barrel Curling Iron has the best record for thick hair, with 14 of 15 shoppers saying the curls took and held, though the group behind it is smaller than the runner-up's. We could not confirm the exact Amazon listing for the leader, so the best pick sold on Amazon is Drybar 3-Day Bender Curling Iron, which ranks second at 19 of 22 with more shoppers behind it than any other iron here. Each record counts just shoppers who said they have thick hair.
Updated . How we count
Share of reviewers who stated an outcome for curling thick hair. Ranked by the lower bound of a 90% confidence interval, so a product needs both a good share and enough reports to rank high.
Best pick on Amazon Drybar 3-Day Bender Curling Iron 19 of 22 say the curls took and held in their thick hair See price & reviews on Amazon Four of the five irons sit between 75% and 93%, with BaBylissPRO Nano Titanium Spring Curling Iron the exception at 59%.
Praise and complaints are the points reviewers repeat most, shown as a share of each product's counted store reviews.
Hot Tools
Best for fast heat-up
Shoppers say it heats fast in 41% of its 17 reviews and call it easy to use in 41%, while 12% say it tangles or snags hair.
Drybar
Opinions split on handling: 37% of its 27 reviews call it easy to use, while 26% call it hard to use. Shoppers also say it heats fast (22%).
T3
Just 9 shoppers stated a result for it, so the record rests on a small group. Of its 11 reviews, 45% call it easy to use and 27% say it heats fast.
No repeated complaints yet.
Bio Ionic
Reviews first posted on Bio Ionic's own site come out about the same as its record, at 5 of 7, and we show them but don't count them. Its 2 misses said the curls didn't hold, though 20% of its 10 reviews call it easy to use.
No repeated complaints yet.
BaBylissPRO
Its 7 misses mostly said the curls wouldn't take or fell out, and some said the barrel couldn't hold enough of their thick hair. Reviews first posted on BaBylissPRO's own site were more positive, at 7 of 8, and we show them but don't count them.
No repeated praise yet.
The 5 products ranked here carry 5,407 reviews at Ulta and Sephora. We searched them for curling thick hair and read the newest matching reviews, up to 40 per product and store, posted between Apr 2013 and Aug 2026.
A review counts only when the reviewer used the product themselves. We drop reviews written in exchange for a free product or a sweepstakes entry (0 on this page), and products that are no longer sold.
Ulta also shows reviews first posted on brands' own websites. They run much more positive than store reviews of the same products (across 19 products with both, 76% of brand-site reviewers said the product solved the problem, against 55% of Ulta shoppers), so we show them on product cards but never count them.
Because we searched for the problem, people who had it are overrepresented. Compare products with each other rather than reading a share as your own odds.
Skin type, skin tone and age splits use what reviewers chose on Sephora's review form (and age on Ulta's when given). We only show a split when enough reviewers fall on each side.
Amazon buttons appear only on products that most reviewers here say fix the problem (at least 60%, with enough reviews to trust it). Everything else gets no buy link.
An AI model labels each review against a fixed list of points, and we spot-check the labels before publishing. We publish counts, never the reviews themselves.
Hot Tools 24K Gold Extended Barrel Curling Iron has the best record (14 of 15), followed by Drybar 3-Day Bender Curling Iron (19 of 22), T3 SinglePass Curl X Curling Iron (7 of 9) and Bio Ionic Long Barrel Curling Iron (6 of 8). BaBylissPRO Nano Titanium Spring Curling Iron comes last at 10 of 17. T3 SinglePass Curl X Curling Iron and Bio Ionic Long Barrel Curling Iron rest on small groups and sit close enough to treat as a tie.
The second number in each card's record is the group size. Groups run from 8 shoppers for Bio Ionic Long Barrel Curling Iron to 22 for Drybar 3-Day Bender Curling Iron, and the leader, Hot Tools 24K Gold Extended Barrel Curling Iron, has 15. Group size is already built into the order, so a card's rank reflects both its share and how many shoppers stand behind it.
Follow the heat settings and instructions that come with the iron. Use a heat protectant if you already use one. We count what shoppers said about results, not safety, so the maker's directions are the place to check how to use it.
Drybar 3-Day Bender Curling Iron, T3 SinglePass Curl X Curling Iron and Bio Ionic Long Barrel Curling Iron are sold on Amazon by the brand or Amazon itself, and Drybar 3-Day Bender Curling Iron is the best pick sold on Amazon. For the leader, Hot Tools 24K Gold Extended Barrel Curling Iron, we could not confirm the exact Amazon listing, so its button searches Amazon for it. BaBylissPRO Nano Titanium Spring Curling Iron has no buy link here, because too few shoppers reported a good result for us to recommend it.
HiveTried earns a commission when you buy through the "See price & reviews on Amazon" buttons. It never changes the ranking: the order comes from buyer reports only, and a product gets an Amazon button only when buyers here say it works.