Laser Hair Removal Information

The device was sold to physicians and treatments were offered in a chain of proprietary clinics called Spa Thira, primarily in affluent communities. Consumers basically paid to be guinea pigs. By the time a medical paper appeared in 1997 which observed full regrowth of all hair [3], consumers had already spent hundreds of thousands of dollars on treatments. They quickly shifted their marketing strategy away from permanent hair removal to a "hair-management strategy," but word was beginning to get out.
In 1998 a class action suit was brought against the company by a consumer alleging ThermoLase "advertised SoftLight laser hair removal as long lasting with the knowledge that such treatments did not achieve that result." [4] ThermoLase quietly settled out of court later that year. In 1999, following other lawsuits and an annual loss of over $41 million, they began closing or selling their spas. [5] In 2000, with the stock down 92% from its high, ThermoLase was folded back into its parent company, which no longer manufactures or markets SoftLight in the U.S.
Wave 5 lasers: 1997 to present
In 1997 FDA cleared several types of devices that target melanin in the hair (see also flashlamps). As with the earlier devices, these devices were rushed to market without adequate testing of effectiveness.
Incremental improvements in equipment since 1997, such as more ergonomically-designed handpieces and methods of epidermal cooling, have made treatment generally more tolerable and reduced the likelihood of some side effects. The publication of clinical observations have also led to more optimized treatment parameters, but understanding of lasers and their long-term effects on hair and other skin structures is still in the early stages

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