Review Of How Long Does A Hair Blowout Last 2023. Web brazilian blowouts may take upwards of one to two hours to complete but can last anywhere from 10 to 12 weeks or an average of 30 to 40 washings with ongoing. We like to use scrunchies (yes,.

For a typical blowout, your straight, smooth tresses should last anywhere from three to five days. We like to use scrunchies (yes,. Web a hair blowout can’t last forever (sigh), but it can last longer than you think.