Does Red Light Therapy Help with Alopecia?

Does Red Light Therapy Help with Alopecia?

Exploring Alopecia

Alopecia, commonly known as hair loss, can be a distressing condition affecting both men and women. Causes range from genetics to environmental factors, and treatments vary in effectiveness.

Introduction to Red Light Therapy

Red Light Therapy (RLT), involving low-level red wavelengths, is gaining attention in dermatology for its potential skin and hair benefits. It's thought to promote healing and reduce inflammation.

The Potential of RLT for Alopecia

RLT is being explored as a treatment for alopecia due to its possible benefits in stimulating hair follicles and promoting hair growth. It may work by:

  1. Enhancing Cellular Energy: RLT could boost energy production in hair follicle cells, potentially revitalizing them.
  2. Improving Blood Circulation: Increased blood flow from RLT might deliver more nutrients and oxygen to hair follicles, encouraging growth.
  3. Reducing Inflammation: RLT may alleviate scalp inflammation, a factor in certain types of alopecia.

Scientific Insights

Studies on RLT for alopecia show promising, yet preliminary, results. Some research indicates improved hair density and growth. However, results vary, and more comprehensive studies are necessary to establish its effectiveness.

Safety and Practicality

RLT is generally considered safe, with few side effects. However, for alopecia treatment, the approach should be cautious and individualized. Devices vary, and incorrect use can potentially lead to scalp damage.

Seeking Professional Advice

It’s essential for individuals with alopecia to consult with healthcare providers before starting RLT. This ensures a tailored approach, especially since hair loss can have various underlying causes.

Red Light Therapy presents an intriguing option for alopecia treatment, offering a non-invasive approach. While initial studies are encouraging, understanding its full potential in hair regrowth requires more research. For those considering RLT, professional guidance is key to ensure safety and effectiveness.


Several scientific studies have explored the efficacy of RLT in treating alopecia. One study on males with androgenetic alopecia used a device containing lasers and LEDs at 655 nm, demonstrating a significant improvement in hair counts compared to a placebo group. This study reported a 39% increase in hair growth in the active treatment group​. Pubmed

Similarly, another study on females with androgenetic alopecia using the same wavelength reported a 37% increase in hair growth in the active treatment group compared to the placebo group​. Pubmed

Another clinical trial investigated the effectiveness of adding low-level light therapy to minoxidil 5% solution in treating androgenetic alopecia. The study found that the group receiving both treatments had a significantly higher percentage of recovery from androgenetic alopecia and greater patient satisfaction compared to the control group that received minoxidil alone. The study noted improvements in hair density and diameter in the group treated with both minoxidil and low-level light therapy​. Pubmed

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