In the network, information is common that sunbathing helps to get rid of acne on the face and body. We checked how justified this statement from a scientific point of view.
The fact that the effects of sunlight can save the skin from acne is written Zagara studios And Manufacturers Solaries, and users of social networks divided positive experience Such therapy. Service visitors questions And answers Interested in whether sunbathing really helps in the treatment of acne.
Acneor acne, is a skin disease in which on the surface of the skin (usually on the face, back and chest) are formed different imperfections, from black dots to cysts. They arise at once in several reasons: follicular keratinocytes (skin cells lining the hair follicle) are divided too fast, the sebaceous glands increase in size and produce excess sebum, and Propionibacterium Acnes living on the skin begin to actively multiply. Together, these factors lead to the fact that an excess of keratinocytes, skin fat and microbes accumulates in the sebaceous glands.
The assertion that the sun is driving pimples is not unreasonable. During sunbathing, the skin is exposed to ultraviolet radiation, and the tan is, in fact, its protective reaction. The body, trying to protect the skin from damage, begins to actively produce melanin -A substance responsible for pigmentation and capable of absorbing UV radiation. Ultraviolet not only changes skin shade, but also dries her. At the same time, the body produces skin fat at all in order to provoke acne and force people to suffer, one of its key functions - Moisturization of the skin and its protection. If the sun causes dehydration, pimples can really dry out (like the rest of the skin), but the sebaceous glands will begin to work more actively to restore the damage caused by sunlight. Therefore, soon overdred skin will become even more oily than to Zagar, and this, in turn, can provoke an exacerbation of acne. For the same reason, dermatologists Recommend When caring for oily skin, do not overdo it with aggressive exfoliating agents and do not neglect a moisturizing cream. In addition, if there are already traces on the skin post -acne, in fact caused by hyperpigmentation, the sun can aggravate the situation and the spots will become even more pronounced.
As mentioned above, one of the reasons for the appearance of inflammation on the skin is microbes, and in many articles on how sunbathing allegedly helps to fight acne is mentioned the antibacterial effect of ultraviolet radiation. Indeed, special bactericidal UV lamps are often used to disinfect in medical rooms. But the question arises: if the sun so effectively destroys bacteria, why are the microbes in the world not completely died out?
In fact, the effect of special lamps differs from ordinary sunlight. The ultraviolet region of the spectrum of electromagnetic radiation of the Sun is customary to conditionally divide into three range Depending on the wavelength: UVA (320–400 Nm), UVB (280–320 Nm) and UVC (100–280 nm). The longer the wave, the large penetrating properties the sun's rays possess. Earth surfaces reach long-wave rays of type A and part B of type B-that is why experts recommend using SPF tools that protect against UVA and UVB radiation, but do not mention type C, because the UVC short-wave radiation completely absorbs the atmosphere. But in bactericidal lamps just Used It is it. It is dangerous to be in rooms where such lamps are included: they can cause burns, and with a direct look - and eye injuries (albeit reversible, without long -term consequences). Therefore, comparing the effect of bactericidal lamps and tanning on the beach is simply incorrect, because different types of radiation have different effects.
However, ordinary sun's rays can also have some bactericidal effect. In some distant villages with low income, for example, in India and some African countries, polluted drinking water Get In transparent containers and expose for at least six to eight hours in the sun, after which the water becomes safer. However, this occurs due to the destruction of cell DNA - that microbes, that people. "Checked" already It wrotethat proven harm from long (more than 15 minutes) solar baths outweighs the alleged benefit. Therefore, the damage obtained by the skin in six to eight hours under the scorching sun is unlikely to cost the alleged short-term cosmetic effect. Acne acne can be replaced by blisters from burns, not to mention the likely long -term (and more dangerous) consequences like cancer diseases.
There is evidence that patients with acne are significantly more likely to have a deficiency of vitamin D than those who do not have such skin problems. Moreover, according to metaanalysis thematic studies conducted by Thai scientists, the lower the level of this vitamin, the harder the degree of acne. Ultraviolet contributes to the production of vitamin D in the body - usually it is with this that the alleged benefits from tanning for health in general. However, specialists Markthat the deficiency of this substance can be replenished in a less risky way - from food and/or food additives. In addition, the WHO adheres to Opinionsthat to obtain a sufficient amount of vitamin D, you do not need to lie on the beach for hours, there are enough walks for 5-15 minutes. several times a week.
At the same time, the spectrum of electromagnetic radiation of the sun includes not only ultravioletus, but also the so -called Visible light - Rays that can distinguish between the human eye (the wavelength of this range is from 380 to 700 nm). Depending on the wavelength, the light has a different color - from red to purple. This can be seen personally when the sun refracted in the falling drops of the rain and its light “laid out” into a spectrum - appears in the sky rainbow. It is in the visible light that is based LED therapy, which is now actively used in cosmetology and dermatology for the treatment of skin diseases, including acne, as well as to stimulate collagen production. Most often, cosmetology uses blue and red light. In general, the skin is exposed to their effects during sunbathing, so in a certain sense the tan, like LED therapy with a dermatologist, has a certain positive effect. However, during the procedure, the doctor can minimize the harmful effects of ultraviolet radiation, which is dangerous to health. Of course, if you sunbathe using a high degree of protection against UVA and UVB radiation and update them every two hours, you can protect yourself from ultraviolet radiation and on the beach, but the skin will still be exposed to some red and blue light. But in medical facilities this can be achieved faster and safer. In addition, the specialist will select the type of light and the time of exposure necessary in a particular case. However, experts note: despite the fact that LED therapy is considered safe today, this is a relatively new procedure, so there is extremely little data on its effect on the condition of the skin and health in the long run.
Sometimes sunbathings themselves can provoke rashes on the skin that are not associated with acne. Allergic The reaction to the sun's rays can appear in any person at any age, the specific causes of its occurrence are still unclear (it is only known that taking antibiotics, hormonal drugs, retinoids and some other drugs increases the risks of its manifestation). With such allergies, bubble rashes, urticaria, red spots, the affected area can swell, itching and itching, can appear on the skin. Although this allergy has no connection with acne, this is one example of how an attempt to cure acne tan can lead to a deterioration in the condition and appearance of the skin.
Thus, tan is not the best remedy for the treatment of acne. Firstly, if you do not use SPF means (or do it wrong), you can get burns that can lead to cancer. Secondly, prolonged sunbathings have only a temporary visual effect, but in reality they can only aggravate both rashes and the condition of the skin as a whole. Vitamin D has a beneficial effect on the condition of the skin with acne, but it can be replenished in other ways with less health risk. The same applies to the impact on the skin of visible light - in this sense, LED therapy under the supervision of a cosmetologist is probably preferable to sunbathing.
Photo on the cover: Armin Rimoldi
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