Chrissy Teigen has recently revealed why she went through an eyebrow transplant, sharing the results of the procedure, according to Health.

In November, the 35-year-old shared three videos to her Instagram Story, showing the results of her transplant. She also explained that she got the procedure done because she used to overpluck the eyebrows in her teens.

She wrote, “I never wear makeup if I can avoid it, so I was so excited for this eyebrow transplant surgery. They take hairs from the back of your head!!”

The model also said that her new eyebrows were “a little dark from the pencil” that was used for her surgery, adding that it is “so cool to have brows again.”

Teigen also added the message, “Teens: Do not pluck them all off like I did!!”

Dr. Jason Diamond, Teigen’s facial plastic surgeon, talked about his most recent work, as well.

He wrote in the Instagram caption, “I know too many people, entire generations, who either overplucked brows as part of the trend or are simply experiencing eyebrow thinning with time. #EyebrowTransplantation is a procedure where we mutually agree on shape, density, etc., and skill takes it from there.”

An eyebrow transplant is a cosmetic procedure where hair grafts (plugs) are transferred to your brow area, according to Healthline. This goal is that new hairs will grow from these grafts, producing a fuller look.

The actual procedure, which may take about a couple of hours, is similar to a traditional hair transplant. A surgeon takes eyebrow hair grafts from hairs above your ears. They also take the hair follicles.

Why do people undergo this procedure? Some people, like Teigen, have overplucked their eyebrows in their teens, making it difficult to grow them back.

NY-based plastic surgeon Dr. Stafford Broumand told Health, “When women over-pluck or -wax their eyebrows, it can damage the hair follicle and potentially cause scarring. The constant removal of the hair from the root can eventually cause the hair to stop growing back.”

After the procedure, you can expect to have fuller, thicker eyebrows, according to Dr. Broumand. “This will help improve the patient’s shape and appearance of the eyebrow,” he said.

In general, Dr. Broumand said that the procedure could cost you anywhere from $3,000 to $8,000.