Red-light devices are all over social feeds and make enormous promises. From the many, we find the few that are actually worth your commitment, time, and money.

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.

Photonic devices are components for creating, manipulating or detecting light. This can include laser diodes, light-emitting diodes, solar and photovoltaic cells, displays and optical amplifiers.

MORE FACT SHEETS: TEENS AND SOCIAL MEDIA Explore the patterns and trends of U.S. teens’ internet usage and their access to different technology devices below. Teen internet use over time Today, nearly ...

This Collection welcomes submissions related to novel devices and innovations and improvements to existing devices aimed at the diagnosis and treatment of medical conditions in low-resource settings.

Smart devices make life more convenient, but many also make it easy to conserve energy and water use, too.