Can hair removal device remove hair permanently?

Hair removal is a recurring cycle and a troubling process for many of our hairy friends. In recent years, the wind of hair removal device is also particularly big, has been into hair removal device or still in the wait and see friends will have a lot of doubts, hair removal device can permanent hair removal?

Principles of hair growth:

The hair consists of the hair root and the hair shaft. The root consists of the hair follicle, hair papillae, sebaceous glands, sweat glands, nerve endings, erector pili, hair mother cells and microscopic blood vessels. The hair shaft consists of the tips, the mid-post and the roots. The hair follicle and papilla are the hair manufacturing factories from which the hair grows. The lower part of the hair follicle (stem and bulb), which is the centre of hair growth, consists mainly of mature hair mother cells with a small number of melanocytes. The hair mother cell, the "engine" of hair growth, is directly affected by hair-inducing factors and divides to produce new hair cells.

Hair growth cycle:

The growth cycle is divided into three phases: the anagen phase (2-7 years), the resting phase (3-4 weeks) and the shedding phase (3-4 months). About 85% of the hair is in the anagen phase, which lasts for about 7 years. Only 1% of the hair is in the resting phase, after the anagen phase it enters the resting phase, which lasts (3-4) weeks. 14% of the hair is in the shedding phase, which lasts (3-4) months, with the atrophied hair, the roots of which move upwards to the sebaceous gland passages; during the shedding phase, new hair starts to grow in the follicle.

Principle of hair removal devices:

        The principle of the hair removal device is the "selective photothermal effect" of light, which acts on the hair follicle and breaks the hair follicle's hair cells through heat conduction, deactivating the hair cells and destroying the hair follicle so that the hair no longer grows.

        The home optical hair removal device and the hospital semiconductor laser hair removal device are based on the same principle of the "selective photothermal effect" of light.

The distinction is as follows:

Can hair removal devices remove hair permanently?

Long-lasting hair removal with home and laser hair removal devices is not the same as hair elimination.

As already mentioned, human hair has a growth cycle (anagen, declining and resting), and the hair removal device works by inactivating the hair cells.

The hair cells are not permanently inactivated and their activity is restored after a period of time. Therefore, hair removal devices cannot remove hair permanently. However, if the device is used for a period of time to inactivate the hair cells of the hair in the anagen phase, the hair removal effect will be better.

How to choose a hair removal device?

①Choose a lighter weight home use hair removal device.

The circuitry of hair removal devices is complex and it is difficult to make them light in weight and size; furthermore, if there are more hairs to be removed, it is harder for the user to lift the heavy device all the time; moreover, hair removal has to be used consistently to achieve better hair removal results. Therefore, choosing a lighter hair removal device is a little easier to use and easier to stick to in the long run.

②Choose a multi-speed home hair removal device

Because hair removal devices are available in different energy levels, different body parts are selected so that the user can choose different gears for hair removal.

③Selecting a qualified energy density and wavelength

Studies have found that hair removal devices with an energy density >5 J/cm are effective in destroying hair follicle tissue. Choose a hair removal device with an energy density ≥ 5 J/cm (energy density = total energy / area of the light outlet) and a long light wave with a starting wavelength of 620nm for light pain and guaranteed results.

Can a hair removal device remove lip hair and private hair?

Yes, you can, but choose a different energy level.

Because different body parts have different skin tones, the choice of energy for hair removal is different for different skin tones. The darker the skin, the longer the wavelength of the hair removal device you should choose. If you are not sure what gear to use, consult a medical professional and choose a professional semiconductor laser hair removal device.