It is still relatively safe. Laser hair removal will act on hair follicles at fixed points, but it will only destroy them. Although it sounds idealistic, everyone should have some confidence in the development of modern science and technology. But there are also precautions and side effects. For example, you should also pay attention to avoiding light after hair removal. Scar constitution and skin diseases may not be suitable for hair removal. If there are side effects, the literature reports redness, dullness, scars and so on. But they are rare, and many will fade away on their own. Generally speaking, hair removal is a relatively safe project. However, the most important thing is to find a regular medical institution to do it (all medical and aesthetic plastic surgery projects are like this) and consult the doctor in advance about the possible side effects.
Knowledge points about household laser hair removal
1) Who is it for?
People with light skin color and dark hair color have better hair removal effect. People with dark skin are more prone to skin damage. People with light hair have little influence.
2) The orange and red lights are safe.
The wavelength of domestic laser is 8 10nm, which belongs to the red light range, such as tria and silkpro. The household strong light belongs to orange light, and the red light is iluminage, Philips 2009, iLight.
3) The depilation effect is not as good as the professional equipment in the hospital.
Household depilators can temporarily delay and reduce hair growth and only damage hair follicles. The hair will grow back slowly after stopping using it. Hospital professional hair removal equipment can remove hair for a long time.
4) Side effects
Light is one of the objects to be defended by the skin. The light emitted by household depilators will have an unknown effect on the skin. Visible side effects are redness and tingling of the skin. Invisible side effects may cause harm to normal cells. So, if it's too good, stop.
Laser hair removal principle
What is the principle of laser hair removal? The technical term is: selective photothermal theory. It is said that hair follicles and hair are rich in melanin. The darker the substance (melanin) absorbs light energy, it will generate more heat, and the temperature will rise sharply, leading to the destruction of surrounding hair follicle tissue and hair loss. Just like basking in the sun in winter. At the same time, people in black are hotter than those in white. Have you thought of anything? If the hair is white, can the laser still be used? Obviously not. White hair does not contain melanin! Similarly, light-colored hair contains a small amount of melanin, and the effect of laser will be reduced.