Keira Knightley

After dyeing her hair for years, Keira Knightley saw that her hair was falling out. The hair loss became so bad that she wore wigs for five years until her hair grew back after she became pregnant with her daughter, Edie, in 2015.

“I have dyed my hair virtually every color imaginable for different films. It got so bad that my hair literally began to fall out of my head!” Knightley told InStyle U.K. “So for the past five years I’ve used wigs, which is the greatest thing that’s ever happened to my hair.”

Tyra Banks

Like a lot of people, Tyra Banks began experience alopecia areata, the medical term for spot baldness, from stress. Her stress reached an all-time high when she was writing her 2011 book, Modelland, which resulted in her losing her hair.

“Honestly, chilling for me was eating a meal,” she told The Wall Street Journal. “I couldn’t just look at the ocean. And in hindsight that wasn’t healthy. How can I say this without tearing up? I got a little alopecia from the stress.”

Kristin Davis

After she wrapped the final season of “Sex and the City,” where she played Charlotte York, Kristin Davis began experiencing hair loss. “My hair just was not what it used to be,” Davis told Women’s Wear Daily. “It was very fine, like it had gone away, there just was hardly any hair there. [It] was always very difficult hair, which no one believes when I tell them—it’s always been not quite that easy, but because I had a lot of hair the professionals could help me make it look nice. It’s not like I woke up and I had Charlotte hair.”

At first, Davis ignored it and concentrated on other parts of her life. But when she tried to do her hair one day, she realized she didn’t have much left. That’s when she turned to Volaire hair-volumizing products at the recommendation of her hairstylist, Luke O’Connor. Davis was such a fan of the products that she later became the brand’s ambassador.

Viola Davis

Viola Davis began experiencing hair loss from alopecia areata at 28 years old. After she learned that her balding was from stress, she internalized the struggle until she learned to embrace her hair for what it was. “I woke up one day, and it looked like I had a Mohawk. Big splash of bald on the top of my head,” Davis told Vulture. “I was like, What is this? Until I found out it was stress related. That’s how I internalized it. I don’t do that anymore. My favorite saying in the world is, ‘The privilege of a lifetime is being who you are.’ I am telling you, I have spent so much of my life not feeling comfortable in my skin. I am just so not there anymore.”

Because she was embarrassed by her hair, Davis got into the habit of wearing wigs wherever she went. It wasn’t until she was older that wigs, which she still wears, became an option, not something to hide behind.

“I wore a wig in the Jacuzzi. I had a wig I wore around the house. I had a wig that I wore to events. I had a wig that I wore when I worked out. I never showed my natural hair,” Davis said. “It was a crutch, not an enhancement. I was so desperate for people to think that I was beautiful. I had to be liberated from that [feeling] to a certain extent.”

Selma Blair

Selma Blair began to experience postpartum hair loss after she gave birth to her son, Arthur, in 2011. In an effort to keep it real, Blair—who, like many moms, experienced the hair loss from changing hormones—opened up about the chunks of her hair that would fall out in the shower and how she would flaunt her bald patches instead of wearing extensions.

“This is so not glamorous, but it’s true: I need to take longer showers so that I can collect the hair that falls out and throw it away so I don’t clog the drain. Why do actresses never talk about that?” Blair told People. “It just started falling out at the three-month mark. And I’m not a girl who likes extensions, so Selma’s going to be bald!”

Neve Campbell

Neve Campbell started losing her hair when she was as young as 23. The alopecia areata was caused by stress from the “Scream” actress’s career, a divorce she was going through at the time, and stalkers.

“At 23, I developed alopecia,” Campbell told The Daily Mail.” I was horribly overworked and going through a divorce. Also, I had stalkers and started receiving threatening mail. I was so distressed by it all that my hair started falling out. Life hasn’t always been a bowl of cherries.”

Naomi Campbell

After rough-handling her hair for years with extensions and weaves, Naomi Campbell experienced significant hair loss. She revealed to Evening Standard that she “lost all of it.” Since then, Campbell has become more careful with her hair, leading to most of her bald spots growing back. “I do take more care of my hair now, because I lost all of it with extensions,” Campbell said. “I am more careful, and I do different things.”

Jesy Nelson

Little Mix member Jesy Nelson began experiencing hair loss when she was as young as 13. In an interview with Fabulous magazine, the singer revealed that she was bullied because of her alopecia areata, which caused noticeable bald spots from stress.

“I was probably about 13 when my hair just started coming out,” she said. “Stress can cause alopecia, and it wasn’t nice. I got picked on because I’ve always liked to dress differently. I’ve never really wanted to fit in with everyone else.”

Rosie O’Donnell

Rosie O’Donnell revealed her battle with hair loss on Twitter with a makeup-free photo showing off her bald spots. The comedian revealed that her hair loss was caused by aging, which is frequent in women over 40. “male pattern baldness … aging is fun,” she tweeted.