We cannot emphasize more on the fact that hairless smooth skin is considered analogous to beauty, especially for women, even today. Temporary hair removal with epilators, razors and depilatory creams are now household utilities. However, despite the easy access of these efficient devices, recurrent hair growth and frequent hair removal is tiring and time-consuming. Laser hair removal is an alluring practical solution to this problem. That's why this permanent method of hair removal has quickly gained popularity globally.
The history of laser hair removal dates back to the last 25 years. However, it has been commercially available since 1997. Since then, laser hair removal has been widely accepted. It is one of the most frequently performed cosmetic procedures worldwide.
It has recently been introduced to Nepali society and is slowly but steadily gaining heat. Many of us already know that we can get rid of hairs permanently with lasers. But what is yet to be understood is how long it takes, how much it works and how cost-effective it is. There are many questions, rumors and a bit of hesitation regarding lasers in the general public. People are concerned about long-term adverse effects. Many people are misinformed or they themselves misinterpret.
In order to understand the effects of lasers on hair, we should first understand hair biology. Our hairs undergo cyclical changes of growth and fall. Hair has three phases of growth: anagen, catagen, and telogen. Anagen is the growing phase of hair and lasts for up to 2-3 years. The roots of anagen hair are deeper and better developed. Roots contain color pigment known as "melanin". Laser rays act on the melanin pigment in order to destroy that particular hair follicle. Catagen and telogen are the resting and falling phases of hair that last for a few weeks to months. The roots of these hairs have few or no melanin pigment. Hence, laser rays work only on anagen hairs, and not catagen or telogen.
The duration of the anagen phase differs among individuals. Moreover, there are millions of hairs on our body, among which, different hairs are at different phases of growth and fall. Certain hairs may be at the anagen phase at a time, and laser rays would work on them. However, hairs may be at the resting phase and hence hair may grow again in those areas. Multiple treatment sessions are hence required for appropriate response. Treatment sessions at monthly or two to three months' interval for a total of five to eight sessions are usually adequate, that is, it takes at least five to eight months of regular treatment for satisfactory results.
The numbers of treatment sessions vary according to your skin type, hair density and regularity of treatment. Results also depend heavily on efficiency of the staffs performing this skilled procedure and machines used. It is preferable to obtain service from licensed personnel. Regarding laser machines, different devices of varying costs are available in the market. Multi-purpose cheaper devices are usually less proficient than the more expensive and highly specialized devices. It may be difficult for the general public to understand these devices. Hence, specialist advice should be sought.
It is essential to advise the patients not to pluck, wax or electrolyze hairs with epilators for at least one month prior to laser treatment. Since these temporary methods of hair removal temporarily remove the roots, lasers will not work on them. However, razors can be used to shave the hairs for special occasions in between treatment.
Laser treatment, like every other procedure, is not without flaws. It does have some side effects on the skin due to the heat produced by these rays. Mild redness, stinging sensations, itching or burning sensation can occur shortly after the procedure. Infection, pimples and skin discoloration can occur if procedure is not undertaken by skilled staff. Consumers must be adequately informed and taught regarding the care of the skin after procedure. Sun protection after each laser session is of paramount importance, especially while removing facial hair. Adequate sunscreens, wearing of hat and use of umbrella prevents any dark spots in laser treated areas. Doctor's advice should be carefully followed in days after the procedure. Long-term grave consequences are very rare.
In conclusion, laser hair removal is a realistic technique of permanent hair removal. Multiple treatment sessions are necessary in every patient, but the total number of sessions and costs depend on the patient's skin type, hair density, operator's skills and devices used. Patients who have hairs darker than their skin tone are ideal candidates for hair removal. It generally works well on Nepali skin.
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