Miramar Labs, a dermatological medical device company, has raised $1 million in debt, options, warrants or other securities, according to a filing with the SEC.

Based in Sunnyvale, Calif., the startup uses electromagnetic energy for aesthetic procedures. The company’s first development, called miraDry, is a non-invasive, outpatient procedure to treat axillary hyperhidrosis, or excessive underarm sweat. The treatment is not yet available for commercial use in the United States or Canada.

Founded in 2006, Miramar Labs last raised $20 million in 2008 from investors including Morgenthaler Ventures, Split Rock Partners and Domain Associates.