Getting long hair trimmed every eight weeks to keep it healthy.
People with long hair require more regular trims because of the damage done to their strands through restyling, according to Fitzgerald. That's why she suggests seeing a stylist every eight weeks to keep long hair healthy.
It's easier to maintain a shorter hairstyle with visits to the salon every four to six weeks
Fitzgerald recommends that those sporting a shorter look still have their hair trimmed regularly, making an appointment every four to six weeks.
"It's basically about image," she said. "It's not necessarily about the wear and tear. It's just about keeping that hairstyle looking like it's in tip-top shape."
Those with coarse and curly hair have it trimmed every 12 weeks.
According to Fitzgerald, those who fall into this category don't need to get their hair cut very often.
"We suggest those who have a tight curl and coarse texture to their hair push it closer to 12 weeks just because the natural oils of their scalp travel down the hair strand and the oils help them naturally maintain a healthier stronger hair follicle," she said.
If you have fine hair, you might want to get your hair cut every four to six weeks.
Whether it's wavy or straight, you should get your strands trimmed every four to six weeks if you have fine hair, according to Fitzgerald. It's really all about appearance, since thinner hair can look limp or unhealthy without regular trims.
"The hair becomes damaged over time," she said. "The only way to really repair the hair is by cutting off the damaged part."
If you get your hair colored, and take care of it, you can push your appointments to every eight weeks
If you get your hair colored but treat it with care (meaning you don't style it with heat often, you don't blow dry it, and you don't play with it all the time), Fitzgerald says you don't have to get it cut quite as often.
"If someone is coloring their hair and taking good care of their hair, it's going to closer to the eight-week mark," she said.
If you want your hair to grow, leave 10 to 12 weeks between salon visits.
You may have heard that if you want your hair to grow, you should get it trimmed often — but Fitzgerald says that's not necessarily the case. The best thing you can do is wait and let it grow for 10 to 12 weeks between appointments, she says.
She recommended putting your hair in a ponytail if you really want your hair to grow. "That way, you won't thermal style it and you won't play with it," she said. "That allows the hair to get stronger and grow."