In daily life, we need to take good care of our skin every day. The two most important steps in skin care are hydration and whitening. No matter whether the skin is dark or not, whitening is needed, because there is a saying that "whiteness can cover up a hundred ugliness". There are many ways to whiten your skin. Recently, the most popular method is laser whitening, but this technology is not very mature. Can laser really whiten your skin? The photothermal effect of laser is affected by three factors: wavelength, pulse duration and light energy density. The wavelength should be in black Select the light with the longest wavelength within the range where the pigment absorption is the strongest, because the wavelength of the laser determines the depth of penetration into the skin. The longer the laser wavelength, the deeper the depth. The pulse duration should be shorter than the thermal relief time required by the hair follicles to minimize indirect thermal damage. hurt. The light energy density must be greater than or equal to the threshold for tissue destruction. ? The melanin in the epidermis competes with the melanin in the hair follicles for energy absorption, so the epidermis should be cooled, especially for the skin. Darker patients. Contact skin cooling should be performed before, during, and after surgery. A refrigerant spray may also be used prior to treatment. Cooling measures can effectively reduce the occurrence of postoperative pigmentation, blisters and scars. In order to properly protect the epidermis and the superficial dermis Under this premise, a laser with higher energy can be used. By studying the absorption spectra of melanin and oxyhemoglobin to light of different wavelengths, it was found that the absorption rates of the two were similar in the longer wavelength lasers used for hair removal. Therefore, when removing hair, you should squeeze the skin to eliminate Laser technology in capillaries has now moved beyond the experimental stage, and physicians willing to perform this surgery should carefully review existing technology and receive appropriate training. As technology advances, permanent hair removal will become safer and laser machines will become smaller and faster. Fast and efficient. Blood disturbance. Through the description in the article, we can also get an answer, that is, laser can whiten your skin. So if you want to whiten your skin, you can choose laser whitening for skin care. Of course, there are many other ways to whiten your skin in daily life. Dietary conditioning is one of them. You can eat more foods containing vitamins, which can also whiten your skin. |
<<: How to treat dark spots on the face?
>>: What drink is the most effective for removing freckles?
Eyes are one of the most important components of ...
For many people, when it comes to blackheads, the...
Many of our friends will have acne on their faces...
When many people just enter high school or colleg...
Female friends are no strangers to olive oil. Oli...
If your earlobes are big and thick, you will have...
Many people think that the skin is too oily and t...
Nowadays, some people who love beauty often chang...
People with sensitive and fragile skin are usuall...
When it comes to rhinoplasty, a cosmetic surgery p...
When people reach a certain age, the body's p...
Keratin is a skin problem that has a great impact...
When looking in the mirror, you may sometimes fin...
Many girls with single eyelids like to wear doubl...
Everyone has the right to pursue beauty, and ever...