What are the principles of laser hair removal? Tips for aftercare after laser hair removal

Laser hair removal is a very common beauty method. In the hot summer, everyone will wear hot pants and short sleeves. Many girls have well-developed hair follicles and abundant hair. Too much hair is not so beautiful, so laser hair removal is very popular. So what are the principles of laser hair removal? Tips for post-laser hair removal care.

What are the principles of laser hair removal

The laser used in laser hair removal does not actually hit the hair follicles, but instead hits the hair on the surface of the skin, causing the temperature of the hair to rise. The heat energy will be conducted to the entire hair. If the hair itself is in the "growth phase", the heat can be smoothly conducted to the hair follicles, causing the hair follicles to die and successfully remove the hair.

Laser hair removal is not perfect either, because it is most suitable for people with light skin and dark hair. The treatment range is locked in "dark pigments". If you have dark skin, the laser will destroy the skin pigment and cause white spots or dark spots, which often take several months to gradually recover. Before laser hair removal, you should choose a doctor with rich experience in laser operation; after the operation, you should take good care of yourself and strictly protect yourself from the sun.

Laser Hair Removal Aftercare Tips

You should avoid sun exposure within 1-2 weeks after laser hair removal surgery, especially avoid swimming in the afternoon, because water absorbs ultraviolet light and reflects it more strongly, which can easily damage the skin. After hair removal, you should not take a bath in hot water above 37°C. Using a moisturizer after a bath will have better skin effects.

Clinical trial results of laser hair removal: After 3-5 treatments, more than 95% of the cases had 80% of the hair fall off, and the hair became less, thinner, lighter in color, and grew slower. If only 1-2 treatments were performed, all cases proved that 30% to 50% of the hair was reduced. In most clinical cases, the average energy density used was only 10-20J/cm2, which was effective in removing hair, thus avoiding possible medical risks such as burns.

Will hair grow back after laser hair removal?

Hair will continue to grow after laser hair removal. Generally, the number of laser surgeries for hair removal will be determined according to the amount and area of ​​your hair. The more times you perform the surgery, the fewer and thinner the hair that grows in the end. In the end, it will hardly affect your appearance, but some fine hair will still grow.

Laser hair removal is the least painful of all hair removal methods. Before laser hair removal, there will be an "irradiation test" stage to determine the patient's pain. The results of many clinical trials show that most patients only feel "being bounced by a rubber band." Laser hair removal will also cool the skin. There are many ways and principles for cooling, but they are all at a temperature of about 4 degrees Celsius. Many plastic surgery hospitals promote freezing-point hair removal, which will make you feel no pain, but it is actually far from 0°, because under the heat of the laser, a few degrees of contact makes people feel like ice compresses.

Is laser hair removal permanent?

The so-called permanent hair removal is actually to destroy the hair follicles so that the hair will not grow anymore or to extend the hair growth cycle as much as possible, so that the hair growth becomes very slow, almost impossible to grow. So although permanent hair removal is possible, as Dr. Song said, there is a certain probability that the hair follicles will be completely destroyed or the growth cycle can be extended. This explains why beauty salons want to deceive consumers into undergoing multiple treatments. In other words, if there are no experienced doctors to provide treatment guidance and experienced operators, it is obviously nonsense to guarantee permanent hair removal with high-tech equipment alone. It is especially worth mentioning that for female consumers with lighter hair color, laser hair removal will not be very effective without sufficient melanocytes to support the treatment.