D low-level light therapy (LLLT), was discovered as a treatment for hair loss during the 1960s.

After a series of sessions, the scientist was surprised to see fur growing around the shaved areas on the mice, and it was thicker than it had been before. That finding opened up exciting new scientific discoveries about the vast potential of the therapy.

Today, the science has moved forward significantly, and now RLT uses high-power light-emitting diode (LED) bulbs to saturate the body with wavelengths of therapeutic light.

In short, our bodies respond to the light in much the same way that plants respond to sunlight: by creating more energy at the cellular level. This sparks a snowball effect of other beneficial biological processes.

What Wavelengths Are Included in Red Light Therapy?

Red light therapy includes both red and near- infrared light NIR, which are among the longest of all wavelengths. Red light ranges from 630 nanometers (nm) to 700nm, whereas near infrared light ranges from 700nm to 1100nm. Research has shown that light in the 630nm to 660nm range has the most powerful effects on treating hair loss.

Research* and user reports indicate that red light can stimulate hair growth in both men and women with androgenetic alopecia (male or female pattern baldness) and non-patterned types of alopecia.

Red 660 nm light increases circulation at the base of the hair follicle and increases the metabolic activity within the skin cells of the scalp. These effects promote hair growth.