On a sunny day in July, while other Bay Area kids were playing at camps or water parks, 8-year-old Charlotte O’Neill was leaning back in a reclining chair in a small, carpeted San Jose office room.

Tired of sitting in traffic and making trips to the clinic? The popular at-home red light therapy skincare treatment uses low ...

LED light therapy has gained so much buzz in recent years—and now, many skincare brands are releasing their own version for ...