I had been on the fence about a Brazilian Blowout for awhile, and I took the plunge in July!
Yeah, from what I researched the formula only has like 8% formaldehyde. My hairdresser said it's such a low amount that there's no reason for concern.
I love the results! Plus, I noticed as my hairdresser applied the formula that it actually had a pleasant smell. I had very kinky, curly, frizzy, coarse hair, and afterwards I would say the Brazilian Blowout knocked out like 80% of my curl and frizz!! Love!
My hairdresser said many of her clients get it done only twice a year, (because it's so expensive), but to really keep it up, it's recommended to get it done every 12 to 16 weeks.
I am going back two weeks for my second B Blowout. I would love to just get it done once every 6 months, and my hairdresser said we might be able to work up to that. But in the beginning, I need a few treatments, (12 weeks apart) to maximize the results.
So crossing my fingers that this next B Blowout will knock out even more curl.
Oh, my hair dress also said that B Blowouts help keep hair color longer. So if you color your hair, that's another bonus. Just be sure to get your hair color the same day you do the B Blowout, or you'll have to wait 2 weeks after the B Blowout to color your hair.
ETA: Same boat as everyone else. I pay $200 for a Blowout. Totally worth it though!