この記事の概要
Low-Level Laser Therapy (LLLT) is a non-invasive treatment used to treat AGA (male pattern baldness) and FAGA (female pattern baldness) It is also sometimes referred to as LED therapy or laser cap. It is primarily a treatment method that uses laser or LED light to irradiate the scalp and stimulate hair follicles and follicles to promote hair growth.
1. Mechanism of low power laser therapy (LLLT)
LLLT acts on hair root cells by irradiating light of a specific wavelength to the scalp, thereby promoting hair growth. It is expected to be effective against AGA through the following mechanism:
- Promotes blood flow: The laser light acts on the capillaries of the scalp, increasing blood flow. This ensures an adequate supply of nutrients and oxygen to the hair follicles and promotes hair growth.
- Cell activation: The hair matrix cells in the hair follicles are activated by the laser light, and the hair growth cycle returns to normal.
- Reduction of inflammation: The micro-inflammation of the scalp caused by AGA is reduced by the anti-inflammatory effect of laser light, making hair follicles less susceptible to damage.
2. Effectiveness of low-power laser therapy (LED therapy)
LLLT and LED therapy are expected to inhibit the progression of AGA and promote hair growth. Specific benefits include the following
(1) Promotion of hair growth
- The laser light acts directly on the hair follicles, which activates the hair root cells and promotes hair growth. It is said to be particularly effective for AGA in its early stages, when the hair follicles have not yet completely died.
(2) Improvement of hair thickness and density
- In some cases, laser irradiation increases the density of the hair, causing each strand to grow thicker and more tightly. This increases the overall volume of the hair and improves its appearance.
(3) Reduce the progression of hair loss
- LLLT is also effective in slowing the progression of AGA. It is especially recommended for use in the early stages of the disease to halt progression as early as possible.
(4) Combination effects with finasteride and minoxidil
- LLLT has been reported to be more effective when used in combination with oral and topical medications such as finasteride and minoxidil. Combining drug and laser therapy may provide a synergistic effect and accelerate hair recovery.
3. Safety of low-power laser therapy (LED therapy)
LLLT and LED treatments are non-invasive and safe with little pain and downtime. The following are some of the safety advantages
- No pain: Laser and LED light are low power and do not cause pain or damage to the scalp.
- Fewer side effects: The risk of side effects is very low compared to drugs such as finasteride and minoxidil. The treatment is less likely to cause allergies or skin problems.
- Can be used at home: You can easily continue treatment at home by purchasing an over-the-counter laser cap or hair band. Even if you continue treatment at a clinic, you often only need to visit a few times a week.
Frequency and duration of treatment
- Treatment at the clinic: Each treatment usually takes only 10 to 30 minutes. Results can often be seen by continuing 2-3 times a week for several months to a year.
- Home treatment: If an over-the-counter laser cap or laser band is used, it should be applied several times a week for 10 to 30 minutes per session, as in the clinic. Continuous use is important.
Disadvantages of low-power laser therapy
- Individual differences in effectiveness: As with other AGA treatments, the effectiveness of LLLT varies among individuals. Effectiveness may be limited, especially in cases of advanced progression or when the hair follicles have completely lost function.
- No immediate effect: Laser therapy is not an immediate treatment, and it may take several months before the effects are felt.
6. Summary
Low-power laser therapy (LED therapy) is an effective non-invasive treatment for AGA and FAGA that promotes hair growth by improving blood flow and activating hair root cells. It is particularly effective when used in combination with drug treatments such as minoxidil or finasteride. Because it has few side effects and can be used continuously at home, it is chosen by many people as part of their long-term AGA treatment.
