By Dr. Mallika Marshall

BOSTON (CBS) – Millions of Americans experience hair loss and some turn to pills, injections, and transplant surgeries with varying results, but now scientists are testing a new light-based, wearable device to regrow hair.

Researchers say earlier studies have shown that lasers, specifically red light, can stimulate hair follicles.  So scientists have developed a chip the size of a postage stamp containing 900 micro LEDs.

When they applied the chip to the shaved backs of mice 15 minutes a day for 20 days, the mice regrew hair faster and longer than mice who weren’t treated or those given injections of a medication commonly used to treat baldness.

Scientists will now have to test the chip on humans.

Dr. Mallika Marshall


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