Low Level Laser THERAPY

Low-level laser therapy (LLLT) is a non-invasive treatment option that uses cold laser light in the visible red spectrum (around 650-700 nm) to stimulate hair growth. Although the exact mechanism is not fully understood, it is believed that the laser light penetrates the scalp, stimulates hair follicles, increases blood flow, and promotes cellular metabolism, leading to enhanced hair growth, thickness, and strength.

LLLT is typically delivered through a home device, such as a helmet, cap, or comb. The recommended usage is three times per week for 20-30 minutes, with a day between treatments to avoid overstimulating follicles. Results may become noticeable as early as 12 weeks after starting treatment.

Several randomized, double-blind studies have demonstrated the efficacy of LLLT using various commercially available devices. Some key findings include:

A 26-week double-blind, sham device-controlled trial involving 110 male patients found a significantly greater increase in mean terminal hair density, hair regrowth, and patient satisfaction in the LLLT group compared to the sham device group. The LLLT device was well-tolerated, with no serious adverse events reported.

Another randomized, sham device-controlled, double-blind clinical trial including 128 male and 188 female patients found greater improvements in terminal hair density among those treated with LLLT compared to those given sham treatment.

While both helmet/cap and comb devices have shown benefits, we recommend a helmet or cap device for more uniform scalp coverage and increased compliance. We specifically recommend the Theradome EVO LH40, which delivers a 680 nm wavelength—determined to be optimal for reaching and stimulating hair follicle cells. In a study involving 30 women with female pattern hair loss, all participants experienced an average 37.75% increase in new hair growth after using the device twice a week for 20 minutes over 24 weeks, with no adverse effects reported.