A Brazilian blowout is a smoothing treatment in the keratin family, but it behaves a little differently on price and longevity - which changes your yearly total.
What it costs
Expect prices in the same band as standard keratin, commonly $150–$400 per session and more for long or dense hair. As with any keratin service, tip and travel push the real per-visit number higher, so a quoted $300 service is closer to $360 once you add a 20% tip.
How often you need one
A Brazilian blowout typically lasts about 10–16 weeks, so most people re-treat roughly every 3 months - around 4 times a year. That is a touch more often than a longer-lasting keratin smoothing service, which pushes the annual cost up: four $360 visits is about $1,440 a year before extras. If that cadence makes the salon expensive for you, an at-home kit routine in the calculator above shows how much a milder, do-it-yourself approach would save.