Laser or light therapy may prove beneficial in stimulating new hair growth; however, there are no guarantees of effectiveness or safety. Many advertisements, promoting it as a cure for hair loss, have made claims that are not backed by the FDA. Most reports of success have been anecdotal, but lack of formal evidence does not mean the lasers don’t work.
While lasers are widely known to work for hair removal, they may also stimulate hair growth.
The positives and negatives of laser use will be examined here, giving the reader a reasonable look at this new therapy—how it works, what it can and cannot do, and the contrast of high- power with low-power lasers.
Since lasers are seen as high-tech and difficult to understand, a simplified look at how they work can reduce the anxiety people have about them. Lasers are thin, highly focused beams of light. Many associate their use with science fiction light sabres, but today they occupy a respectable place in medicine.
Often lasers may help promote hair growth by targeting three specific chromospheres or components in the skin that absorb light .They are melanin (in hair follicles and sun spots); haemoglobin (in blood vessels); and water (in the epidermis and dermis skin layers).
High-powered lasers have been proven to be effective in a number of medical conditions. They are commonly used to 1) destroy hair follicles to remove unwanted hair; 2) zero in on abnormal blood vessels such as varicose veins; and 3) to erase fine lines and wrinkles. These dynamic tools can cut through tissue, burn tissue and release heat.
Another type of laser treatment, known as low-level laser therapy (LLLT), is much gentler and less invasive. It does not produce heat and is most often used to heal rather than damage and destroy. It does not stimulate hair growth in completely bald areas of the scalp, but it may restore normal hair growth in thinning areas according to claims. Here’s how—theoretically chromospheres absorb the gentle light that increases blood and oxygen flow to the area in need. This may affect the hair follicle at the cellular level, which boosts the strength and thickness of the weak or thin hair . miniaturized (thin in diameter) hairs may take up to 12 months to grow into healthy hairs.
Both men and women who face genetic pattern balding may experience the most benefit from LLLT. However, those who get best results also use an over-the counter topical cream called minoxidil (Rogaine). Another supplemental prescription product, finasteride (Propecia) may contribute in the treatment of men. Its use with women has not yet been established and may be harmful to them.
Women with more diffuse hair loss may realize more favourable outcomes, because LLLT is not particularly helpful on bald areas. Also, women’s hair is more miniaturized than men and so it may respond better to treatments.
Results of LLt or not permanent; both men and women must continue therapy to keep hair growing.