Does LED help with hair growth?
“LED (light-emitting diode) therapy, particularly in the form of low-level laser therapy (LLLT), has been studied for its potential benefits in promoting hair growth,” begins Dr. Raj. “This therapy is thought to stimulate hair follicles, increase blood circulation in the scalp, and enhance cellular metabolism, which can lead to improved hair density and thickness.”
He explains that “studies have shown positive results for individuals with androgenetic alopecia (male or female pattern baldness) and other types of hair loss.”
From a trichologist POV, Kingsley explains that, “there is limited evidence into the guaranteed results of using LED, although there is no harm in trialing this option” as a part of your hair loss/growth journey if you so choose. She echoes the idea that devices using low-level laser therapy (LLLT) have more backing in terms of studies, but that any device is best used in tandem with other hair loss solutions, such as minoxidil “to gain the maximum benefit.”
What kind of LED devices are best for scalp?
“There are many available on the market, from caps, helmets to combs,” says Dr Raj, who believes the best are “ergonomic, easy to use devices that can be used in smaller areas more consistently.”
As you’ll see, many brands offer solutions, ranging from caps you wear on your head, to small handheld devices you massage your scalp with. The latter can help to stimulate circulation at the scalp where hair grows, and can sometimes be used alongside scalp scrubs or oils, making them potentially doubly as effective.
But it’s really down to preference and budget.
Are red light therapy for hair loss devices safe and how often should you use them?
Experts I quizzed agreed that genuine, high quality devices (such as the ones in this piece) are safe, but you must always follow the specific product’s instructions.
In terms of how often you should use your device, Newman explains that “regular usage is key to seeing results, and frequency typically depends on the device type and treatment goals. For example, many LED devices are designed for daily or every-other-day use for 10–20 minutes per session, though specific guidance will depend on the model.” He adds: Consistent use is critical to achieving and maintaining the desired effects, whether for skin improvement or scalp treatments.”
Ferguson and Measures recommend that for their The Light Salon device, you should use it “three to five times a week.” They conclude: Used this often, the number of treatments amounts to 240 a year, making an LED an amazing investment.” I approve of this girl math.
