Medical beauty science and technology: photorejuvenation full explanation

Photorejuvenation has always been a popular item of skin photoelectricity beauty, the first device I came into contact with is the OPT of the Koi people - "King Style", the laser center of the dermatology department of the Army General Hospital is one of the earliest introduction of this device, which at that time was the best device, but it has long been antiquated. The second device is BB light, also in the dermatology department of the Army General Hospital; I started to use the third device "DPL" precision light and the fourth device "ICON" in Yuquan Hospital; and the fifth device is Koyjin's M22 series (M22, M22RFX, AOPT Ultra Photon), is the device I used in the second hospital of Yimei and Liguo.

After using so many photorejuvenation devices, I feel that the devices are getting more and more advanced, the clinical results are getting better and better, and the side effects are getting less and less. However, the parameters of the regulation is more and more fine, the equipment is more and more difficult to operate, and the requirements of the doctor are also more and more high.

Photorejuvenation devices refine all the parameters (wavelength, pulse width, energy, number of pulses, cooling), requiring doctors to adjust accordingly according to each customer's skin condition, to bring the treatment effect to the best, and at the same time to minimize the adverse reaction control. Just like the camera, the previous equipment is a foolproof machine, now the equipment are SLR.

This article is a small summary of my use of various photorejuvenation equipment for more than a decade. Mainly divided into the following eleven parts:

First, what is photorejuvenation?

Second, the principle of photorejuvenation?

Third, the role of photorejuvenation?

Fourth, photorejuvenation indications?

V. Contraindications to photorejuvenation

VI. How much does it cost? How to choose?

Eight, photorejuvenation safety?

IX. What are the side effects and adverse reactions? How should they be handled?

Ten, photorejuvenation before and after surgery should be how to care?

XI, photorejuvenation course for how long? How often do you do it?

I. What is photorejuvenation?

Photorejuvenation is an advanced high-tech skin medical cosmetic program, is the earliest, most widely used, and most popular photoelectricity cosmetic program. 1995 began to be used in clinical practice, the earliest called IPL, is the abbreviation of Intense Pulsed Light, that is, "Intense Pulsed Light" technology, the domestic known as IPL. "The first called IPL is an abbreviation of Intense Pulsed Light, which is called "Photorejuvenation" in China. It is a light wave with a spectrum of 400 1200 nm in the visible and near-infrared part of the spectrum, which covers a variety of target color groups such as melanin, hemoglobin, water, etc. Multiple absorption peaks, and the use of different filters, can solve different skin problems.

Skin photoelectric project a lot, not many reliable, can withstand the time precipitation of the less, many projects are short-lived, just launched when the fire, after 1-2 years on the disappearance.

But photorejuvenation is an exception, since its introduction in 1995, its powerful function, comprehensive efficacy, popular around the world, and so far has been a lot of beauty seekers preferred photoelectric project. 2019 in the medical cosmetic project inside the fourth, photoelectric project ranked first.

Second, the principle of photorejuvenation?

Photorejuvenation can produce a continuous intense pulsed light, acting on the skin tissue, generating selective photothermal effect, the energy is absorbed by the target tissues (melanin, hemoglobin, and water), and then, without destroying the normal skin, break down the pigmentation-expeling spots; close the abnormal capillaries- The skin can be removed from the skin without damaging the normal skin, breaking down pigmentation, closing abnormal capillaries, stimulating collagen production, and removing acne, hair removal, and repairing sensitive skin.

Three, the role of photorejuvenation?

Photorejuvenation emits a section of wavelength light, mainly 400 1200 nm is located in the visible light and near-infrared this part of the light wave, covering almost all the absorption of melanin, hemoglobin, water wavelength peaks, so that photon has a red, black, rejuvenation, acne, hair removal, as well as the repair of sensitive skin, and other comprehensive functions.

Spot removal: Melanin vesicles, melanin clusters selectively absorb photon energy after the blasting effect, the spot is photon destruction, scab, and then 5-7 days the scab off, the normal skin tissue around the spot is not affected. Photorejuvenation is the first choice for the treatment of epidermal spots (sun spots, freckles), which is inexpensive, effective, and has fewer side effects;

Removing redness : The hemoglobin in the erythrocytes selectively absorbs a certain wavelength spectrum of intense light, generating a thermo-coagulant effect, and transmitting the heat to the epithelial cells of the capillaries to make them undergo segmental coagulative necrosis, closing the blood vessels, thus achieving the effect of removing redness. Thus achieving the effect of redness removal. Photorejuvenation is the first choice for the treatment of dilated facial capillaries. Although pulsed dye laser has the strongest effect on vascular lesions, the side effects (blisters, discoloration, scars) are also the most obvious, so few people choose pulsed dye laser for redness treatment. pulsed dye laser is mainly used for the treatment of hemangioma, nevus of bright red and other serious vascular lesions.

Skin rejuvenation: Photon in the longer wavelength light (near-infrared) of the target tissue is water, after absorbing the energy of photons, produce photothermal effect and photochemical effect, stimulate the skin's collagen fibers and elastic fibers rearrangement and regeneration, to restore the skin's elasticity, brighten the skin tone, reduce pores, reduce fine lines, is the basic anti-aging maintenance of the important means of

Pulse dye laser is mainly used for the treatment of vascular nevus and other serious vascular nevus. p>

Hair removal: After the melanin in the hair absorbs the energy of the photon, the deep hair follicle heats up and destroys the hair follicle and the stem cells around the hair follicle, so as to achieve the effect of hair removal. However, 755nm, 810nm or 1064nm lasers are recommended for more thorough hair removal.

Pain: When removing spots and redness, the tingling will be more obvious. . In order to reduce the stinging discomfort of photorejuvenation, in the early course of treatment can rejuvenate the skin to repair the skin barrier, so that the skin barrier thickening, tolerance increases, the pain tolerance enhancement, and then in the later part of the course, to remove the spot, remove red. strong> Popping pimples : It is due to the stimulation of photons, induced by the potential acne. If it is visible to the naked eye, it can be pre-treated with acne removal modalities. If the pimples, topical fusidic acid, twice a day, 5-7 days can be relieved;

itching : uncommon, usually caused by mast cells after stimulation, after the operation of a good ice, usually does not occur, if it occurs, oral kairatan a day a piece of 2-3 days to relieve;

blisters : uncommon, generally due to the stimulation of mast cells.


Blisters: It is not common to have blisters when the parameters are not set appropriately, when the customer has a recent history of exposure to the sun, or when the postoperative ice pack is not properly applied. If the blisters occur, you can puncture the blisters, the blister liquid release, and then the local application of iodine volts, scabs, wipe erythromycin ointment, usually 3-5 days on the healing;

Color Sinking: uncommon, usually after the blisters, not deal with the left, timely treatment will not stay color sinking. If you can use products containing vitamin C, arbutin, salicylic acid, fruit acid, azelaic acid, or you can use picoseconds, super picoseconds laser treatment;

Color off: uncommon, photorejuvenation to get rid of the spot, the target tissue is melanin, rather than melanocytes. If the energy is too high, after the melanocytes are destroyed, it will cause color loss;

Rediscovery: Uncommon, usually seen in the recent history of exposure to the sun or chloasma customers. If it happens, make sure to moisturize and protect yourself from the sun, and you can also have a chemical peel (fruit acid, salicylic acid) for 3-6 months for slow relief.

Ten, photorejuvenation before and after surgery should be how to care?

Pre-operative : Photorejuvenation should be good before the operation of sunscreen, where there is a history of exposure to the sun in the last month, it is best not to do photorejuvenation. Because after exposure to the sun, melanocyte activity is relatively strong, the skin melanin content is relatively high, this time to do photorejuvenation, it is easy to blisters, anti-black;