There are triple wavelengths laser for hair removal:
755 nm alexandrite laser
805 nm or 810 nm diode laser
1064 nm Nd: Yag laser
When classifying different lasers, it must be recognized that these triple wavelengths laser are the only types of lasers used for hair removal. Since there are many different types of lasers, the specific technology used for professional laser hair removal machines is a long pulse laser. This means that the laser “stays” on the skin longer, but it is still very fast compared to 1 second. The laser stays on the skin for only a fraction of a second, but it is still longer than a Q-switched laser. Q-switched lasers are used for tattoo removal, and have a shorter resting time than long-pulse lasers for hair removal.
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Diode strip technology and optical fiber transmission with interchangeable spot sizes:
All professional laser hair removal machines uses a hand-piece that emits laser light onto the skin. It is important to understand the difference between head technology. The diode laser uses a hand-held pen tip to contact the skin, while using a transparent ultrasonic gel as the medium. The transparent ultrasonic gel helps the handle-piece slide on the entire skin and keeps the skin cool through the cool technology emitted by the cool diode tip. The disadvantage of diode lasers is that they require multiple passes to successfully treat. In addition, some people may think that using clear ultrasonic gel will be troublesome. Diode lasers are affordable professional laser hair removal machine that can be used uninterrupted throughout the day.
Sometimes, professional laser hair removal equipment using diode technology will have triple wavelengths in the same equipment, such as 755 nm alexandrite and 1064 nm Nd:Yag. This is not common, but it does exist. The disadvantage is the use of laser rod technology, which usually equals lower beam quality compared to equipment using fiber optic transmission. Professional laser hair removal machine designed with optical fiber transmission function is considered high-end equipment because of its high manufacturing cost and means that it can transmit laser beams better. When producing better beam transmission, you will receive better results. An optical fiber is essentially a flexible wire similar to glass, which is connected to an optical device that generates a laser beam from a laser rod. Professional laser hair removal machine designed with fiber optic transmission function will also have different spot sizes, which can provide a more precise laser hair removal experience. The advantage of a professional laser hair removal machine designed with fiber delivery function is that one pass treatment is equivalent to shortening the treatment time and does not require transparent ultrasound gel.
What chromophore does the laser absorb and why is it so important?
The laser absorbs the 3 main components of the skin, namely oxygenated hemoglobin, water and melanin. For professional laser hair removal machine, the most important thing is the amount of melanin absorbed by each laser wavelength. This is very important when treating dark skin, as the amount of melanin in skin types 4, 5, and 6 is much higher. Hair contains melanin, and the process of laser hair removal is that the laser is attracted by the melanin in the hair and absorbs this ingredient. . When treating darker skin tones, the laser wavelength must absorb enough melanin to be effective, but not too much, so as not to burn the skin or pigmentation. This is because the laser absorbs melanin. When deciding which professional hair removal machine is best for your business, it is important to understand these three components.
755 nm Amerinite
Melanin has a high absorption rate, which means it is not suitable for skin types 4, 5 and 6. However, it is most suitable for skin types 1, 2 and 3, and is a very effective laser wavelength for hair removal.
805 nm or 810 nm diode
Melanin absorption is moderate, and it has good safety for all skin types. Compared with 755 nm alexandrite, the absorption of melanin at this laser wavelength is slightly lower, which makes it safer on dark skin. Usually, diodes are used to effectively aim hair at dark skin.
1064 nm Nd: Yag
Compared with other wavelengths, Nd: Yag laser or 1064 nm Ng: Yag laser is the safest laser wavelength for dark skin and is considered the gold standard wavelength for skin types 4, 5 and 6. The laser is effective for all skin types but is not suitable for skin types 1, 2 and 3.
