SpectraGenics, a Pleasanton, Calif., developer of laser hair-removal devices for home use, raised at least $20 million in a fourth round of funding, VentureWire reports (subscription required). The round was led by De Novo Ventures and Technology Partners; other investors included Aphelion Capital, Incubic Venture Capital and SDL Ventures.

SpectraGenics, which still seems to be fairly stealthy, sells a version of its hair-removal device in Japan under the name i-epi. If you read Japanese, or just want a look at the device and its marketing, check out their Web site.