Researchers at the University of Illinois have pulled off a laser first: they built a new kind of eye-safe laser that works ...

We gathered insights from experts and recommendations from our testers to determine the eight best at-home laser hair removal devices that are safe and effective.

Until the 2000s, hemorrhoidectomy was the primary surgical treatment for hemorrhoidal disease. Since then, less painful ...

The Epilaser (from the brand that launched the iconic infomercial epilator, Epilady, back in the ‘80s) is a totally unique at-home hair removal device that can be used on all skin tones. Even better?

Read Cosmo's review of the 10 best at-home laser hair removal devices of 2025, plus dermatologist-approved tips and tricks for safe and effective results.

Considering CO2 laser resurfacing? Get the details here, including how it works, what skin concerns it can address, and the average cost.

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.

Ultrafast lasers articles from across Nature Portfolio Ultrafast lasers are lasers that produce short pulses of light, typically less than one picosecond.

Gastrointestinal cancers remain among the most common forms of cancer. While endoscopy has become a cornerstone of cancer ...