But the chemicals found in some of these treatments—most notably formaldehyde, which is used to open hair's outer cuticle layer so the keratin can penetrate better—have come under fire due to ...

Keratin treatments – the most famous being the Brazillian blow dry – are most known for being temporary straightening treatments lasting around three months. At age 19, that's exactly what I was in ...

If you have the frizz, coarseness or flyaways that come with damaged or aging hair, you’ve probably spent a good bit of time researching tips and tricks for thickening your mane. Perhaps you’ve tried ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There are so many at-home products for frizz that promise to deliver smooth, silky hair. But nothing ...

Every product on this page was chosen by a Harper's BAZAAR editor. We may earn commission on some of the items you choose to buy. Keratin is a beauty buzzword synonymous with smooth, shiny strands and ...

We updated this article in February 2023 to add more information about each featured product, based on extensive research done by our team. If you’re looking to achieve smoother, sleeker, frizz-free ...

If you purchase an independently reviewed product or service through a link on our website, we may receive an affiliate commission. No one enjoys having dry, dull frizzy hair, which is why people ...

All products featured on Vogue are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. There’s no way ...

Every item on this page was chosen by a Town & Country editor. We may earn commission on some of the items you choose to buy. Keratin has been the buzziest hair treatment of the past few years. With ...

In-salon, professionally done hair-straightening treatments (such as Brazilian Blowouts) often contain formaldehyde, which is a chemical that many people prefer to avoid. The best keratin treatments ...

All products featured on Vogue are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. The real ...

Keratin treatments typically release formaldehyde, which may pose risks during pregnancy. Learn about safer hair treatment options.