However, it is really annoying to scrape body hair every day, hair waxing is very painful, and hair removal cream is also a risk of allergies. Many girls turn their attention to laser hair removal.
The principle of laser or photon hair removal: aiming at the melanin in the hair to achieve long-lasting hair removal, it is necessary to destroy the stem cells of the hair bulb, namely the hair bulb and the dermal papilla. In the past, the scraping method, the extraction method, and the chemical hair removal (hair removal cream) could not damage the hair stem cells, and the hair growth was aggravated by temporarily removing the hair.
Instruments: Our center uses Felton’s freezing point for painless hair removal and the medical doctor’s king’s style photon hair removal. The unique cooling device can reduce the discomfort caused by the absorbance of the epidermis.
The hair removal site should not be plucked two weeks before treatment, beeswax hair removal, and electrolytic hair removal, otherwise, the hair bulb is not exposed enough, and the absorbance decreases to affect the effect.
Indications: hair removal, facial hair removal, lip hair removal, hair loss before and after hair removal, hair removal in the front and back of the chest, hair removal in bikinis, hair removal in the limbs, and other parts of the body, as well as hair removal after skin grafting, Becker hair removal and so on.
Contraindications: Pregnant women, a history of light sensitivity or taking photosensitizers, the skin is brown after exposure.
So is laser hair removal really safe as advertised? Does it harm the skin? Does it affect perspiration? Are there any side effects? In fact, as long as the principles of body hair and laser hair removal are clarified, these problems are solved. Let’s take a look at this knowledge, “keep it clear” to remove hair!
First let’s first get to know the hair of the body.
Hair cognition
The hair of the human body can be divided into bristles and cuì hairs, namely bristles and vellus hair.
1, bristles: rough, darker, medullary. Including long hair, such as hair, beard, mane, chest hair, pubic hair, etc., the length is generally greater than 1cm; short hair, such as eyelashes, eyebrows, nose hair, ear hair, etc., the length is generally less than 1cm.
2, mane: soft, light color, no medulla, but also hair or hair, mainly distributed in the face, neck, limbs and trunk.
The hair cycle is generally divided into the growth period (2 to 7 years, that is, the period when the hair follicles are active and barbaric), the regression period (2 to 4 weeks, the retiring time of the hair follicle), and the rest period (about 3 months, the dying stage of the hair follicle). After the rest period, the dead hair follicles fall off and another hair follicle is born, starting a new growth cycle.
Hair removal: Hair removal is mainly for hair that is in the growing season. The hair in the growing period is continuously taken off, so that most of the hair is in the period of retreat and rest, and the purpose of hair removal is achieved.
Five factors affecting laser hair removal
1, wavelength
We know that light has wavelengths, and different materials have different light absorption efficiencies for different wavelengths. Therefore, scientists have found a suitable wavelength range (600 to 1100 nm) so that the laser can penetrate into the depth of the hair follicle. And let the melanin absorb the most laser energy, and then achieve the effect of destroying the hair follicle. The laser wavelength commonly used in the market is 694nm~1200nm, which can be absorbed by melanin and has good penetrating power.
Therefore, as long as the correct wavelength is selected and operated properly, laser hair removal will not cause much damage to the skin!
2, energy density
The higher the energy, the better the effect, but the stronger the pain. Therefore, the most suitable density is preferably a pain that is acceptable to those who do not have side effects and hair removal. On the contrary, in general, if there is no pain during hair removal or local skin does not respond, the energy density may be too low.
3, the number of hair removal
The number of hair removal is related to the hair removal effect, and the better the hair removal effect, the less the number of hair removal. Of course, the hair removal effect is related to a number of factors.
4, hair removal interval
In theory, the hair growth cycle is different in different parts, and the interval between laser hair removal is different. The shorter the stationary period, the shorter the hair removal interval can be.
5, skin type, hair condition, parts
The lighter the skin color, the darker and thicker the hair, the more obvious the hair removal effect. Dark skin is suitable for Nd:YAG lasers; lighter or white hair requires photo-electric bonding.
The hair removal effect of the underarm, hairline, neck and limbs is better, and the upper lip and chest and abdomen are less effective.
Does laser hair removal affect perspiration?
Does not affect! Human body perspiration mainly depends on small sweat glands, while laser hair removal is to remove hair follicles, hair follicles and sweat glands are two separate tissues. Hair grows from the hair follicles, while sweat glands are next to the hair follicles. The two are not the same thing. So, it won’t hurt the sweat glands without affecting perspiration!
veet hair removal device 