"There’s not a day I don’t cry and just keep praying the hair will eventually stop falling out."

Women say a popular hair care line created by a celebrity stylist in Los Angeles is making them go bald, with hundreds of people joining a class-action lawsuit against the manufacturer. Instagram: @wenbychazdean Murphy Rosen LLP

Wen by Chaz Dean promises to be "an industry-changing product line that excludes ordinary shampoo." Facebook: WENhaircare

Creator Dean believes regular shampoo is harmful to hair. "What sets Wen apart is its cleansing conditioner, a single-step process that cleanses and conditions the hair simultaneously," the product's website says. "The cleansers include a perfect blend of special ingredients, including natural botanicals and herbs, and do not contain sodium laurel sulfate or harsh chemicals."

Forbes reporting in 2010 that the company had raked in $100 million in just its second year of sales. The company also boasts celebrity fans, like spokesperson Brooke Shields. The hair care line has been very successful, withreporting in 2010 that the company had raked in $100 million in just its second year of sales. The company also boasts celebrity fans, like spokesperson Brooke Shields. View this photo on Instagram Instagram: @chazdean

The line is owned by informercial company Guthy-Renker, which also owns the skin line Proactiv. The product also isn't cheap, costing about $30 a bottle.

Dean himself is a celebrity in his own right, having styled the hair of stars like Alanis Morissette and made appearances on Bravo and other TV networks, according to his bio View this photo on Instagram Instagram: @chazdean

But amid all of the success, a growing number of women are speaking out about what they claim is a horrifying side effect of using Wen: Their hair is falling out. Facebook

In fact, Wen is currently embroiled in a class-action lawsuit brought by more than 200 people who claim they lost their hair after using Wen's product. Facebook: WENhaircare Facebook: WENhaircare

In response to the claims and the lawsuit, a spokesperson for Wen told BuzzFeed News that the complaints only represent a small fraction of its customers. "[We] intend to vigorously contest the allegations made against our products," Joe Hixson said. Facebook: WENhaircare

The group of mostly women, who hail from multiple states, filed the lawsuit in March after they said they suffered "severe injuries" to their head and scalp. Some of the women were representing their children, who are minors. Facebook: WENhaircare

The parties involved in the lawsuit agreed on a framework for mediation on Dec. 1, but the suit is still ongoing, according to court records.

The women claim that they used Wen's products after they were promised it was natural and would strengthen their hair. But, instead, their hair began to fall out. Murphy Rosen LLP

The women claim that they suffered hair and scalp damage, hair loss, rashes, scalp irritation, hair breakage, poor hair condition, and hair discoloration. One woman claimed that when she tried to ask customer service about it, she got shut down: Ms. [Katy] Walker relied on representations by Wen customer service representatives...that the Products would not cause such issues and that she must be using too little of the Products and, later, that she was not properly rinsing the Products from her hair. Contrary to their insinuations, she used the Products as instructed but suffered hair loss and damage and scalp irritation and rash.

The lawsuit also claims that Wen should have known about the issue because many women have complained online and on social media about the product. Indeed, a number of angry women have complained online they lost their hair from the product. Facebook

This woman wrote that after just one wash with Wen, her hair began coming out "all over my hands." Facebook

"My hair isn't going to magically grow back," she wrote. "You will be held accountable."

"I suddenly saw several noticeable bald spots on my scalp," one women wrote on Consumer Affairs about the product. "I became very concerned and immediately stopped using Wen." consumeraffairs.com

Many women wrote online that their sudden hair loss caused great distress, as they thought something was seriously wrong with their health. consumeraffairs.com

"The more I continued using this product, the worse it got," one woman wrote. "But it really didn't cross my mind that it could be my hair product. I was seriously concerned about my health, worried that I had an internal issue."

"There's not a day I don't cry and just keep praying the hair will eventually stop falling out," one woman wrote on Consumer Affairs. "I am down to washing my hair just once every two weeks because washing it makes the hair loss worse." consumeraffairs.com

The lawsuit blames the hair loss on the allegation that the "products contain one or more active ingredients that act as a depilatory or caustic agent, causing a chemical reaction that damages the hair strand and/or follicle." But the lawsuit doesn't specify which element of Wen could be the issue.