Conair XL Onyx Ceramic Flat Iron has the best record for wavy hair, with 20 of 22 shoppers saying it straightened their waves smoothly in few passes. We could not confirm the exact Amazon listing for the leader or the next two irons, whose buttons search Amazon instead, so the best pick sold on Amazon is BaBylissPRO Porcelain Ceramic Straightening Iron at 12 of 16. Each record counts just shoppers who said they have wavy hair.
Updated . How we count
Share of reviewers who stated an outcome for straightening wavy 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 BaBylissPRO Porcelain Ceramic Straightening Iron 12 of 16 say it straightened their waves smoothly in few passes See price & reviews on Amazon The three BaBylissPRO irons here sit at different shares: BaBylissPRO Nano Titanium Ultra Thin Flat Iron is at 80%, BaBylissPRO Porcelain Ceramic Straightening Iron at 75% and BaBylissPRO Nano Titanium Prima Styling Iron at 58%. Check the exact model, not just the brand.
Praise and complaints are the points reviewers repeat most, shown as a share of each product's counted store reviews.
Conair
Best for fast heat-up
Fast heat-up comes up in 23% of its 26 reviews and good value in 19%.
No repeated complaints yet.
CHI
Heat draws mixed reports, with 13% of its 30 reviews saying it heats fast and 10% saying it doesn't get hot enough.
BaBylissPRO
Of its 25 reviews, 12% say it heats fast and 8% call it good value, though 8% say it stopped working.
BaBylissPRO
Shoppers call it good value in 17% of its 18 reviews, though its 4 misses said it snagged their hair or struggled to straighten their waves.
No repeated complaints yet.
BaBylissPRO
Its 10 misses mostly said it took many passes or still left their waves in, though 16% of its 25 reviews say it heats fast.
No repeated complaints yet.
The 5 products ranked here carry 4,228 reviews at Ulta. We searched them for straightening wavy hair and read the newest matching reviews, up to 40 per product and store, posted between Oct 2012 and Sep 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.
Conair XL Onyx Ceramic Flat Iron has the best record (20 of 22), followed by CHI Original Ceramic Hairstyling Iron (20 of 25), BaBylissPRO Nano Titanium Ultra Thin Flat Iron (16 of 20) and BaBylissPRO Porcelain Ceramic Straightening Iron (12 of 16). BaBylissPRO Nano Titanium Prima Styling Iron comes last at 14 of 24. CHI Original Ceramic Hairstyling Iron and BaBylissPRO Nano Titanium Ultra Thin Flat Iron share the same 80%, so treat them as a tie.
The second number in each record is the group size. Groups run from 16 shoppers for BaBylissPRO Porcelain Ceramic Straightening Iron to 25 for CHI Original Ceramic Hairstyling Iron, and the leader, Conair XL Onyx Ceramic Flat Iron, has 22. Group size is already built into the order, so a card's rank reflects both its share and how many shoppers stated a result.
BaBylissPRO Porcelain Ceramic Straightening Iron is sold on Amazon by the brand or Amazon itself. We could not confirm the exact Amazon listings for Conair XL Onyx Ceramic Flat Iron, CHI Original Ceramic Hairstyling Iron and BaBylissPRO Nano Titanium Ultra Thin Flat Iron, so their buttons search Amazon for them, which makes BaBylissPRO Porcelain Ceramic Straightening Iron the best pick sold on Amazon. BaBylissPRO Nano Titanium Prima Styling Iron has no buy link here, because too few shoppers reported a good result for us to recommend it.
No. The counts are what shoppers with wavy hair said after using each iron, not a lab test, so follow the label directions.
HiveTried earns a commission when you buy through the Amazon buttons on this page. 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.