In recent years, red light therapy has gained significant attention for its potential health benefits. Also known as low-level laser therapy or photobiomodulation, this non-invasive treatment involves exposing the body to low-intensity red light wavelengths. But what exactly is red light therapy, and does it truly hold the potential to improve our well-being? Let’s dive into some of the science-backed evidence to find out.

Understanding Red Light Therapy:

Red light therapy utilizes light-emitting diodes (LEDs) to emit specific wavelengths of red light that penetrate the skin, reaching deeper layers of tissue. According to the NIH (National Institute of Health) these wavelengths typically range between 630 to 850 nanometers (nm). Red light therapy can be administered through specialized devices such as lamps, panels, or handheld devices, making it accessible for home use as well as professional settings.

Health Benefits of Red Light Therapy:

Numerous studies have investigated the potential health benefits of red light therapy. The National Institutes of Health (NIH) has contributed to this research by examining its effects on various conditions. Let’s explore some of the key findings:

Skin Health and Wound Healing:

Red light therapy has been shown to improving skin health and accelerating wound healing. According to a study published in the Journal of Clinical and Aesthetic Dermatology, red light therapy effectively promotes collagen synthesis and enhances cellular function, leading to improved skin elasticity, texture, and reduced signs of aging.

The NIH also conducted a randomized controlled trial on chronic wounds, where red light therapy significantly improved wound healing rates compared to a control group. This suggests that red light therapy may be a valuable tool in dermatology and wound care.

Pain Management and Inflammation:

Red light therapy/low laser therapy/PBM (photobiomodulation) has been explored as a non-pharmacological approach for pain management and reducing inflammation. According to the NIH this use of laser technology is able to up-regulate anti-oxidant defenses and reduce oxidative stress. One of the most reproducible effects of red light therapy is an overall reduction in inflammation.

Mental Health and Well-being:

Preliminary research indicates that red light therapy might have a positive impact on mental health conditions such as depression, esp related around seasonal affective disorder (SAD). A pilot study conducted by the NIH revealed that red light therapy led to a reduction in depressive symptoms among individuals experiencing SAD. While this study was specific to depression related to seasonal changes the outcome from it was promising for supporting the treatment of other depressive disorders as well. With red light therapy being a non-invasive treatment there is less harm involved for the potential benefits that may be gained.

Hair Growth and Alopecia:

Red light therapy has garnered attention in the field of hair restoration. The NIH-supported research published in Lasers in Surgery and Medicine suggests that red light therapy may promote hair growth in both men and women with androgenetic alopecia (pattern baldness).


While more research is needed to fully understand the mechanisms behind the health benefits of red light therapy, the existing studies offer promising insights. From enhancing skin health and wound healing to managing chronic pain, reducing inflammation and potentially improving mental well-being, red light therapy has shown considerable potential as a non-invasive treatment option.

It’s important to note that red light therapy should be used under proper guidance and with appropriate devices to ensure safety and effectiveness. While there are many red light therapy devices on the market for sale, it would still be best to consult with a healthcare professional or dermatologist to determine the best approach for your specific needs if you’re considering red light therapy.

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