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Nevada investigates whether cryotherapy is safe for public

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  • An exterior view of the Rejuvenice spa in Las Vegas on Tuesday. Chelsea Patricia Ake-Salvacion

LAS VEGAS » Nevada is looking into whether cryotherapy is safe for the general public after the death of a Las Vegas spa worker found inside a phone booth-sized chamber chilled with liquid nitrogen, regulators said Monday.

The state said it was shifting its investigation beyond workplace safety and the equipment used in the treatments to the health concerns surrounding the technology itself. The new approach to the investigation could lead to regulations for the industry, said Steve George, state Division of Industrial Relations administrator.

The use of whole body cryotherapy has been growing across the country, notably by professional athletes to recover from competition or training, but the unproven treatments that involve subjecting the body to extreme subzero temperatures have been largely unregulated worldwide.

It’s been touted as a treatment for pain and inflammation, increased blood flow, weight loss, better skin or even to ward off aging and depression. But the science and medical community have so far not embraced it, and the chambers are not approved for medical use by the Food and Drug Administration.

Few states have reported pushing for regulations, writing it off as “alternative treatment.”

A former Hawaii woman, 24-year-old Chelsea Patricia Ake-Salvacion, was found dead Oct. 20 in a phone booth-sized cryotherapy chamber at the Rejuvenice spa in Las Vegas where she worked.

Ake-Salvacion had apparently used a cryotherapy chamber after hours on Oct. 19.

Two Rejuvenice locations in Las Vegas and unincorporated Clark County were ordered closed last week after authorities said the operation lacked local business and state cosmetology licenses as well as state-mandated proof of worker compensation insurance.

Rejuvenice has offered 30-minute cryotherapy sessions for about $100, according to online promotions. At least one other cryotherapy center operates in Las Vegas, unrelated to Rejuvenice.

It took the state more than a week to open an investigation because the industry is so new that no agency assumed responsibility for it.

The Division of Industrial Relations is expected to look at all three businesses selling the service in the state as part of its comprehensive review. Revealing how little cryotherapy is understood, the state said it would start its research from scratch, reading brochures and examining the equipment, among other things.

“At this point, the equipment doesn’t seem to be the problem, but we are doing our due diligence,” said George, who is head of the state’s workplace safety division that also includes the Nevada Occupational Safety and Health Administration.

George said the wider investigation would aim for regulations, because the state has determined that no federal agency offers guidelines on cryotherapy use. State health officials could not immediately provide more information on what kind of rules could be considered.

Joseph Costello, a researcher with the University of Portsmouth in southern England who studies cryotherapy, published a study weeks ago indicating that there was no solid science to back up the treatment’s primary claim that brief exposures to temperatures as low as minus-300 degrees Fahrenheit could aid muscle soreness.

He also has pressed for more research and consistent guidelines for use, saying he believes hundreds of thousands of people have used cryotherapy across the world but that he didn’t know of any regulations.

“Different companies, different countries are using different temperatures and different durations of exposure,” Costello said.

Popular in eastern Europe for years, cryotherapy only hit the U.S. market about two years ago, experts have said

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