Let's introduce the principle, treatment scope and characteristics of laser beauty for everyone.
The therapeutic principle of laser cosmetology (intense pulsed light)
The common item of laser beauty is intense pulsed light, which is a broadband intense spectrum filtered by a filter, and the wavelength range is 500nm- 1200nm, including the spectrum from Huang Hongguang of visible light to near infrared light. Because it effectively filters out ultraviolet rays harmful to human body, it is safe for human body. Through selective photothermal action, it directly acts on abnormal blood vessels, pigments and collagen color bases, which can effectively remove various skin defects and improve skin quality and elasticity. The short-wave part of the spectrum penetrates shallowly, but the effect is strong, which is very effective for removing blood vessels and pigmented lesions. The long wave part of the spectrum penetrates deeply, but the effect is mild, which is very effective in treating skin structural lesions.
In addition, intense pulsed light is very flexible in adjusting pulse time. The adjustable range of pulse duration (pulse width) and pulse delay time is large, and the system has the ability to connect micro-pulses. In this way, selective thermal decomposition can be effectively carried out: light waves are absorbed by chromophores (melanin, hemoglobin, etc.). ), and then the light energy is converted into heat energy, which destroys the target substances (melanocytes, red blood cells, hair follicles) containing chromophores through heat conduction. Because of its multi-chromatographic combination and adjustable pulse time, intense pulsed light has the ability to treat a variety of skin aging and light damage lesions, vascular lesions, eliminate inflammation and depilation, and does not damage the epidermis.
The therapeutic range of laser cosmetology (intense pulsed light)
570nm (photon rejuvenation): mainly superficial pigmentation, such as freckles, irregular pigment spots caused by sun exposure (day spots, senile spots); Large pores; The skin quality is improved.
650nm: hair removal, such as cheek hair removal, lip hair removal, beard hair removal, neck hair removal, back hair removal, chest hair removal, armpit hair removal, arm hair removal, bikini hair removal and leg hair removal.
420nm: Treatment of acne in inflammatory stage.
540nm: blush, rosacea, nevus flammeus, hemangioma, telangiectasia.
Contraindications of laser cosmetology (intense pulsed light)
◆ Suntanned skin in the past month.
◆ Patients with suspected skin lesions (ulcer, inflammation, etc.). ) or skin FK 1.
◆ Pregnant women, people with photosensitive constitution, scar constitution, and people who have taken photosensitive drugs recently (within one month).
◆ Upper eyelid and male beard.
◆ Unrealistic expectations.
How to nurse after laser cosmetology (intense pulsed light) treatment
★ The key points are: cold compress immediately (5- 10 minutes) and complete sun protection.
★ Do local cold compress immediately after treatment, which can be done by patients themselves. Cold compress can reduce flushing, reduce the possibility of skin lesions, and extend the cold compress time for the parts with obvious edema.
★ The patient's face will feel tight and smooth.
★ Do not use any cosmetics or take a hot bath for 48 hours.
★ When you go out, you must apply sunscreen (SPF is greater than 15), and you need to completely protect yourself from the sun during the whole course of treatment. Apply sunscreen 10- 15 minutes before going out; You can take vitamin B drugs, especially oral nicotinamide (NAA), which can effectively reduce the photosensitivity.
★ Use neutral and mild cosmetics and detergents.
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I hope it helps you, remember to give points ~