Researchers think that a new device with 900 micro LED might offer hope to balding men – after remarkable results on rats with hair loss.
Rats wore the 20mm thick patch for 15 minutes a day for three weeks, and the Korean researchers saw longer hair growing faster than in rats who received a standard hair-growth injection.
Lasers have previously been used to stimulate hair follicles, but therapy is extremely expensive.
The new device generates 1,000 times less power, with the current experiment using a postage-stamp-sized device on the backs of hairless rats with alopecia, the researchers from the Korea Advanced Institute of Science and Technology found.
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The device used 1,000 red LEDs to deliver light through the animals’ skin, combined with injections of minoxidil (the active ingredient in Rogaine, a baldness treatment).
The researchers write, ‘Although laser-induced skin stimulation is utilized for depilation treatment, such treatment has significant drawbacks of high energy consumption, huge equipment size, and limited usage in daily life.’