The principle of the laser hair removal device is that the light penetrates the skin to the hair follicles, releases energy to destroy the hair follicles, and the hair follicles cannot grow when the hair follicles are damaged. Therefore, the laser hair removal device is useful. However, the damage to the hair follicle is also painful, so it is not suitable for many people. How to choose a hair removal device that suits you? Although the publicity on the market are laser hair removal devices, in fact there are two types of laser hair removal devices: lasers and photons. The differences between the two are relatively large, and they are not the same for different people.
No matter which type of hair removal instrument is laser (also called Laser), photon (also called IPL, IPL, intense pulsed light), the user cares about three points: 1. Whether the hair removal effect is good or not. 2. How about hair removal safety? 3. Whether it is convenient to use. Next, I will share with you the purchase of these three points.
First, hair removal effect
The hair removal instrument uses the energy generated by light and heat to destroy the hair follicle to achieve the hair removal effect. Therefore, the key to the hair removal effect is the light and heat energy. The greater the energy, the greater the damage to the hair follicle, and the better the hair removal effect. The energy of the laser hair removal instrument is above 20J, and the energy of the photon hair removal instrument is about 3J to 10J. From the energy comparison point of view, the laser is winning. However, you can't just rely on energy theory when purchasing, because the greater the energy, the stronger the pain, so you still have to buy according to your own situation. If it is not pain-resistant, it will be photon, if it is pain-resistant, it will be laser.
Second, security. The hair removal instrument uses light and heat to remove hair. The importance of light is self-evident. The wavelength of light is divided into wavelengths (also called wavelengths). Too short light cannot reach the position of the hair follicles, and the light and heat energy will be absorbed by the melanin and hemoglobin on the surface of the skin, causing damage to the skin. Therefore, the safety of the epilator is the wavelength. Specific purchase: Laser hair removal instrument does not need to consider the wavelength, because it emits monochromatic and directional pure light. The wavelength is fixed at 810nm. Studies show that the wavelength above 550nm is safe. It is important to consider the wavelength of the photon epilator, because it emits light in a broad spectrum band, not a specific length, a range, this range is between 400nm-1200nm. For this reason, the photon hair removal instrument is equipped with a filter. The filter can cut off unnecessary wavelengths and only emit a certain wavelength in the band. The color of the filter is different, and the actual wavelength emitted by the hair removal instrument will be different. Summarized the filter colors and corresponding wavelengths on the market, no color filter (440nm), green color filter (490nm), yellow color filter (540nm), orange color filter (570nm), red color filter (590nm), and crimson color. Filter (650nm) Because the wavelength above 550nm is safe, a photon hair removal instrument with a yellow color filter or higher is recommended.
Third, the convenience of use. The convenience of the hair removal instrument has a large relationship with the area of the lamp head and the flash frequency. The larger the area of the head lamp, the larger the area of skin that can be covered, and the large range of hair removal in a single time. The light emission frequency refers to how often the light is emitted. Wait for half a day to use the next light every time. When buying, please pay attention to: the area of the lamp head of the laser hair removal instrument is generally small, below 1cm, and the light output frequency is about 2s-2.5s. The area of the lamp head of the photon epilator is generally large, the area is about 2cm-5cm, and the light output frequency is about 1s-5s.
Finally I am sharing two. 1. The purchase should consider whether the hair removal instrument is plugged in or charged. I recommend buying a plugged in model, because there will be a power failure when charging. 2. The service life of the epilator does not need to be overly concerned. Because the hair removal instrument life refers to the number of flashes, and you can't use that number at all. The service life of the photon epilator is about 100,000 to 400,000 times. The laser hair removal instrument has a service life of 30 million to 50 million times. The main points of hair removal instrument purchase are not complicated. To sum up: laser hair removal instrument: high safety, good hair removal effect, but very painful; in addition, the lamp head has a small area, which is a point-to-point hair removal, which takes a long time. Photon Hair Removal Device: The safety is inferior to the laser. Choose a model with a wavelength of 550nm or higher. The energy density is low, it only damages the hair follicles, and the hair removal effect is not as good as that of the laser, but the pain is slight.