The effective penetration depth of 808nm wavelength can reach the target tissue (dermal papilla), and the appropriate pulse duration ensures that the target tissue generates enough thermal damage while the surrounding tissue is almost unaffected.

        The appropriate energy density ensures that the energy output is strong enough to damage the target tissue at the appropriate time while the normal tissue is almost unaffected; Appropriate epidermal protection ensures sufficient damage to the target tissue, while the epidermis is almost unaffected, thus ensuring the safety of treatment.

        In order to achieve the above design requirements, the multi-pulse laser of the semiconductor hair removal series heated the hair follicle to over 75℃ under the mode of low energy density, and maintained the hair follicle by sliding the treatment hand for a period of time (10HZ state), which was heated and solidified, so as to achieve the purpose of permanent hair removal.

        Light can damage hair follicles in three ways: thermogenesis (selective heating of hair follicles locally); Mechanical action (shock wave or intense cavitation formation); Photochemistry (which kills follicle cells by producing toxic free radicals or singlet oxygen) reduces hair all three ways.

Growth cycle

1.Hair growth period is periodic, and each cycle includes Anagen, Catagen and Telogen. Generally speaking, the growth period of hair is about 3 years, the regression period is about 3 weeks, and the quiescent period is about 3 months. The hair growth period of different place is not synchronous, each have respective growth period. The length of hair in different parts is related to the growth cycle, such as the growth cycle of eyebrows is about 2 months.

2.During the growth phase (Anagen), hair growth is active and melanocytes are the most abundant.

3.Catagen: Hair growth is static, the number of capillaries is reduced, the dermal papilla shrinks, and melanocytes stop producing melanin.

4.Telogen: hair follicle and dermal papilla separation, hair loss.

Characteristic

1.Laser can be fully absorbed by hair follicle tissue.

2.The laser effectively passes through the skin to where the hair follicle is located. The wavelength of semiconductor laser is 800nm, in the near infrared region of the spectrum, the absorption of melanin is good, but also can penetrate into the deep dermis and subcutaneous adipose tissue, acting on different parts and depth of hair follicles, effectively remove any part of the human body and depth of hair.

3.Ultra-long adjustment of laser pulse time,protect the epidermis while removing hair of different thickness,the best hair removal effect required by the laser pulse time and hair thickness.

4.No pigmentation, the penetration depth of semiconductor laser is deep, and the epidermis absorbs little laser energy, so it will not produce pigmentation.

5.Compared with electroacupuncture hair removal technology, hair removal is faster, more comfortable and less side effects. Compared with traditional laser hair removal, pulse width, energy and irradiation time are adjustable, specificity and selectivity are high.

6.Permanent hair removal. Semiconductor laser hair removal can achieve permanent hair removal after several times of treatment.

7.Painless. The earliest laser hair removal is very painful, so people are very worried about this, but semiconductor laser hair removal for you to solve this problem, there is no need to worry about pain.

Further reading：DPL Photon Skin Rejuvenation Apparatus to remove anti redness

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