Laser combs, also known as laser therapy devices for hair growth, use low-level laser light therapy (LLLT) to stimulate hair follicles and promote hair growth. They are not about cloning or other complex procedures, but a relatively straightforward application of light energy.
The Science Behind Laser Combs
When a chromophore absorbs light, it activates cellular processes by sending signals to scalp cells. Laser combs typically operate at wavelengths around 650 nanometers (red light, 630-670nm range) which is considered ideal for stimulating cell growth. These devices contain diodes that emit this red light, or sometimes infrared radiation. This light energy is believed to:
- Increase blood circulation: Improved blood flow delivers more nutrients and oxygen to the hair follicles, nourishing them and encouraging growth.
- Stimulate hair follicles: The light energy activates cellular processes within the follicles, prompting them to transition from a resting phase to an active growth phase. This helps counteract miniaturization, a process where hair follicles shrink, resulting in thinner, weaker hair.
- Reverse miniaturization: Studies suggest that LLLT can reverse miniaturization of hair follicles, leading to thicker and stronger hair growth.
Multiple studies, like the one referenced in PubMed, suggest that low-level laser treatment is an effective option for treating pattern hair loss in both men and women. The HairMax LaserComb, for example, has shown promising results in clinical trials, with users experiencing an average increase of 129 new hairs per square inch after six months of consistent use (as noted on Amazon). The FDA has also cleared several laser combs for hair growth, demonstrating their safety and efficacy.
How to Use a Laser Comb
Laser combs are generally easy to use. Users typically need to apply the comb to their scalp for a specified amount of time, several times a week. It's a non-invasive and painless procedure. However, consistency is key, and results may vary depending on individual factors.
Important Note
While studies show positive results, the effectiveness of laser combs can vary between individuals. Consistent use and proper application are critical for optimal results. It's always advisable to consult a dermatologist or healthcare professional before starting any new hair loss treatment.
