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Protection of post-operative surfaces (scars, skin) from UVO
Last reviewed: 08.07.2025

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After crusts or wound coverings fall off after dermabrasion or after burn treatment, the epithelialized surface has a pink-red color due to dilated vessels and the ongoing post-inflammatory recovery period in the tissues. The protective properties of the epidermis are reduced during this period, which requires appropriate therapeutic and preventive measures. One of the main harmful factors that can lead to a number of complications and side effects is solar radiation. Moreover, not only direct sunlight, but also reflected and scattered sunlight are dangerous at this time for post-traumatic surfaces. It is known that the spectrum of solar radiation consists of ultraviolet rays A, B, C (200-400 nm), visible light (400-760 nm) and infrared light (more than 800 nm). UVA rays, being the hardest, penetrate the deepest into the dermis, the wavelength is 320-400 nm. UV-B rays, the medium-wave part of the ultraviolet spectrum, with a wavelength of 290-320 nm. UV-C rays have a wavelength of 200-290 nm. have the highest energy and are the most dangerous part of the ultraviolet spectrum. It is known that the shorter the wavelength, the stronger the inflammatory effect of UV rays. However, due to low penetrating ability, almost all UV-C rays are retained by the ozone layer of the earth. UV-B act at the epidermis level, damaging Langerhans cells, thus weakening the skin's immunity, inducing an inflammatory reaction and a reaction of free radical formation. In addition, they stimulate the release of iron and copper ions from cellular depots, which are also catalysts for the reaction of hydroxyl radical formation from hydrogen peroxide.
UV-A rays have the lowest energy, but have the highest penetrating ability. They easily penetrate clouds, glass, clothing, pass through the epidermis, reach the dermis, where they have a destructive effect on the genetic apparatus of fibroblasts. They participate in the process of elastosis and play a leading role in the development of photosensitivity, photodermatoses, photoimmunosuppression and malignant skin diseases. Under the influence of UFO, photoreceptors and free nerve endings located in the epidermis are irritated, which send impulses to the brain and pituitary gland. The pituitary gland produces melanostimulating hormone, which activates the production of melanin by melanocytes. Peptides of similar action, stimulating the production of melanin, are also produced by keratinocytes. Melanin synthesis is also enhanced by nitric oxide (NO), produced by activated macrophages. DNA fragments can also stimulate melanin synthesis. In addition, the so-called substance P was found - a neuropeptide secreted by free nerve endings of the epidermis in response to UFO and other stress effects, which also stimulates the production of melanin. Melanocyte through its numerous processes transfers grains with an increased content of melanin in granules (melanosomes) by pinocytosis to keratinocytes. Thus, a change in skin color occurs, that is, tanning or hyperpigmentation. To prevent the appearance of post-traumatic hyperpigmentation, protect the genetic apparatus of cells from the damaging effects of UFO after dermabrasion, peeling, removal of benign skin formations, after plastic surgery, it is necessary to use sunscreen creams, even in winter. Therefore, dermatocosmetologists, dermatologists and surgeons must recommend their patients to protect the skin or scars with photoprotective creams for at least 2 months after surgery or injury. In this case, it is necessary to use products purchased only in pharmacies, with a wide range of UV (UVB+UVA) protection and, of course, only from serious pharmaceutical companies such as Bioderma, Estederm, La Roche-Posay. Vishi.
An example of modern and effective cosmeceutical sunscreen products is the products of the dermatological pharmaceutical laboratory La Roche-Posay (France), which has launched a series of sunscreen products under the ANTHELIOS brand on the world market. The products contain a patented formula of new effective filters Mexoryl® SX + Mexoryl® XL, which provides absorption of UVB and UVA rays and provides 100% protection. The products have 3 degrees of protection (SPF) - 50+, 40, 20. They do not contain fragrances, dyes, are made on the basis of La Roche-Posay thermal water, are easy to apply to the skin, do not create a feeling of "clogged" skin.
The range of drugs consists of:
- ANTHELIOS XL (SPF 50+) - melting face cream, 100 ml;
This product contains the patented Mexoryl® SX + Mexoryl® XL sunscreen system (chemical filters) and titanium dioxide and aluminum hydroxide - mineral filters that provide a wide spectrum of absorption of both UVA and UVB rays. The melting effect is achieved due to the content of a patented polymer, which allows the product to be instantly absorbed, and microspheres containing nylon powder complete the effect. Contains antioxidants in soybean oil extract and tocopherol.
Anthelios XL 50+ is recommended for people with skin phototype 1, prone to sunburn, people with any skin phototype in extreme insolation conditions. The cream combines maximum protection from UV rays and a delicate texture. Ideal for skin prone to dryness.
ANTHELIOS XL FLUIDE EXTREME (SPF 50+) - facial fluid; 50 ml.
ANHELIOS XL FLUIDE EXTREME SPF 50+ (PPD 28), 50 ml.
Shown to people with sun-intolerant skin and in the first month after deep peeling and surgical dermabrasion. The airy texture of ANTHELIOS XL FLUIDE EXTREME SPF 50+ allows it to be used by people with any cosmetic skin type. Does not cause a comedogenic effect.
ANTHELIOS XL SPF 50+, PPD 28, 125 ml. - sunscreen milk or spray.
The products are easy to apply and spread over the skin, so they are especially indicated in conditions of extreme insolation, to protect large areas of the body skin from insolation,
ANTHELIOS XL Dermo-pediatrics (SPF 50+, PPD 28), - cream for children. 100 ml.
A specially developed sunscreen that provides maximum protection for children's skin from the sun's rays and is more resistant to the effects of sand, water and sweat.
In case of hyperpigmentation at the site of scars after dermabrasion or after aesthetic surgeries, it is recommended to prescribe products containing tyrosinase inhibitors, melanin neutralizers (kojic, ascorbic, retinoic acids, arbutin, hydroquinone, etc.). These can be creams, special compositions, masks. One example of a depigmenting course of treatment is Amelan no Kruligu (Venezuela). The main components of this course of treatment are a mask (Amelan R) and cream Amelan M. The composition of the preparations includes the above components, which are the active agents. The mask is applied to cleansed skin for several hours (5-12), then washed off, after which regular use of the cream begins.
On dark skin or with dark and pronounced spots, Amelan M can be applied during the first week 3 times a day, leaving it on for at least 4 hours. During the second week, the cream is applied twice a day and during the third week, once a day. It is necessary to use sunscreen before going outside.