Key ingredients: One version contains formaldehyde, one does not. The one without contains glycerin, keratin and propylene glycol, which they claim is the ingredient that bonds the keratin and conditioners to the hair.
Average cost: $350
Results last: 6 to 8 weeks (formaldehyde-free version) 3 to 4 months (formaldehyde version)
Post-care requirements: You must wait 72 hours to shampoo or style hair and sulfate-free shampoos and conditioners are recommended.
Reader experience:
Lorraine, who has Keri Russell-like curls and performs these treatments, has experienced the formaldehyde-free version of this one (along with the Brazilian Blowout and Keratin Complex). "If I never had the Brazilian Blowout, I would have loved it," she says. The main reason it's not her fave, "I still saw some fluff," she says. She does recommend it for people who want to "dip their toe in the water since it's the most gentle."
Keratin treatments for straight, smooth hair has reached major popularity among our readers. According to Eric Rosado, Artistic Director at Ted Gibson Salon in New York City, keratin treatments are truly, "the best option for defrizzing and smoothing many textures of hair from curly to relaxed."
Mauricio Ribeiro, creator of the Brazilian Blowout, says that since their launch, keratin treatments have evolved so much — and customers no longer complain about a strong chemical smell. That said, the process won't work without chemicals.
"To get shiny, straight hair for months, formaldehyde or other aldehydes must be used," explains Chemist Doug Schoon, president of School Scientific in Dana Point, California. "I believe [clients] have no risk" of being harmed by the treatments, he added.
Bottom line, the choice is yours when it comes to deciding if a Brazilian keratin hair treatment is right for you. To make your decision easier, read on to get answers to commonly asked questions about keratin and feedback from readers on some of the big-name treatments.
There are so many keratin hair treatments available now, so if we missed one that you love or one that you had a bad experience with, please tell us about it by commenting on this story.
