The length of time for a keratin treatment depends on the formula being used, as well as your hair texture and how much hair you have—Taylor notes that it typically takes two to four hours.

People should avoid washing their hair too often, as this can strip away the keratin treatment. Instead, aim to wash hair every 3–4 days using lukewarm, rather than hot, water.

"The keratin treatment can last up to 3 to 5 months," says Jarvis. The reason it lasts this long is to give the chemicals enough time to penetrate the hair shaft and work, says Dr. Chacon.

Before receiving the keratin treatment, her client’s hair is visibly dry and somewhat frizzy. After the keratin treatment, Davila’s client has much shinier, healthier, frizz-free hair.

Professional keratin treatments will likely last longer than an at-home keratin treatment, but both can last up to a few months. "Keratin treatments last three to five months, depending on how ...

Mensah says a keratin treatment generally starts with your stylist washing your hair to clean it from any impurities. Once dried, your stylist will then put the solution all over your hair and let ...

Improve the health of your hair, skin and nails with the right vitamins and essential nutrients that your body needs to ...

“A keratin treatment is a smoothing and straightening treatment that helps reduce frizz and allows your blow-dry to last longer, as well as make the hair more manageable," says Pash, explaining ...

TikTok/__chels.__ “The first shampoo after the treatment, my hair is a tangled mess,” she said. “I put in some cureplex, an intense repair treatment, gave my scalp a good old massage.

We tested a whopping 43 shampoos for thinning hair from Vegamour, Mielle, Ouai, Brigeo, and more popular brands. Our testers ...