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While examining a 62-year-old whose knee had been treated with low-level laser therapy to rebuild cartilage, Paul Clayton, Lyma director of science, noticed that the knee’s skin looked 20 years younger. This ­revelation sparked Lyma’s handheld laser, which users can apply to the face or body while relaxing on the couch. Used just 15 minutes daily, it works to clear scars, rosacea, and wrinkles. Its 500-­milliwatt laser “tricks your skin into producing more collagen,” says founder Lucy Goff. Encased in medical-­grade plastic, it’s the first clinical-grade laser FDA-approved for at-home consumer use. 

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