Prolonged exposure to solar radiation is the cause of burns and
skin lesions. Stop long solar baths!
Let's put the brown skin color into sunscreen!
- about 45 percent of radiation is visible "light"
- around 46 percent - it's "warm", but invisible infrared rays.
- about 8 percent - it is very harmful to the skin and eye UV radiation
- The remaining radiation is of no importance to organisms.
MORE KNOWLEDGE ABOUT THE SUN FILTERS
What are sunscreens?
Sunscreen filters are chemicals used in creams and other protective cosmetics, whose task is to protect the skin against the harmful effects of sunlight. The most common in cosmetics are two groups of filters. The first group are chemical compounds absorbing (absorbing) energy carried by solar radiation. The second group are physical filters, ultrafilet radiation-resistant compounds acting as micro-mirrors.
What substances are used for "mirror" filters - reflecting rays?
• titanium dioxide (TiO2),
• zinc oxide
The compounds w / w protect against UV-B and the part of the UV-A spectrum.
Popular substances of chemical filters absorbing radiation are:
• octocrylene - protects against UV-B
• trisiloxane drometrizolu and its derivatives - protects against UV-B and UV-A, found under the trade names silatrisol
• butyl methoxydibenzoylomethane (Parsol 1789) - i.e. avobenzone, which is currently one of the few compounds that protect against UV-A radiation.
Trouble with filter instability and the latest proposals from scientists
It turned out that the sunscreen efficiency of some filter chemicals may be reduced during tanning. This is due to the gradual destruction by UV radiation of the chemical structure of the filter. Researchers have found more photostable substances that do not accumulate UV-A energy and are therefore longer lasting and effective. An example of such a substance is Mexoryl. Secondly, in the formula of the cosmetic, several filters are used simultaneously, thus the energy absorbed by the UV-A filter is partially transferred to another UV-B filter, thanks to which the UV-A filter is protected against degradation. Only the use of several filters in one cosmetic (both physical and chemical) gives the skin adequate protection. Most often, several chemical filters and one physical filter are used.
Preferred filter complex
Due to the possibility of photodegradation of the filter during the emission of UV radiation and in other respects, the most effective tanning creams are those that contain a mixture of several different filters, preferably both mineral and chemical ones. We then have confidence that the preparation will work effectively for a long time. The current standard for the quality of UV protection is the use of several compounds as absorbing and physical filters. It is believed that only such a comprehensive cover can provide the skin with effective protection against ultraviolet radiation.
Latest generation filters
• The newer generation filter is the chemical-resistant Mexoryl mentioned above. Mexoryl SX and newer Mexoryl XL - we can find, for example, in the products of the company LOreal.
• The latest generation filter combining the features of chemical and physical shielding is Tinosorb M. It protects against both UV-B and UV-A.Thanks to a special micronized structure, it protects against solar radiation like mineral filters (scatters and reflects the sun's rays), on the other hand, like all chemical filters absorbing the energy of sunlight. Thanks to microscopic chemical particles, it is soluble not only in fats but also in the aqueous phase of the cosmetic, which facilitates its use and prolongs durability.
Filters promote skin health
It is worth noting that the use of modern fillings does not interfere with the synthesis of valuable vitamin D 3, which prevents rickets in children, and in adults, osteoporosis.
Beware of the side effects of using filters
A rare but acute drawback is the side effects of filters. It's all about chemical filters. Chemicals that act as filters can cause skin sensitization or irritation. (One of the filters on which some of the people react irritably is Oxybenzone, which can also appear in the composition of the medicine under the name Benzophenone-3.) This is manifested in the form of itching, burning or pinching the skin. Unfortunately, a photosensitizing reaction is also possible. A photosensitizing reaction involving a filter is always manifested by burning or pinching the skin, slight redness or slight rash may occur. However, after the withdrawal of a substance called PABA, the risk of photosensitis is very rare. Some substances of the benzophenone type are also a danger.
ed. Edward Ozga Michalski, MA
medical consultation: Dr n. med. Andrzej Szmurło
dermatologist
WE INVITE YOU IN WARSAW AND NEARBY RESIDENTS
FOR THE USE OF CZERNIAKA'S PROPHYLAXIS
Laboratory of Digital Dermatoscopy, NZOZ Prevention and Therapy Center
02-383 Warsaw, ul. Grójecka 126,
SAVINGS: tel / fax. (22) 659-46-27, tel. (22) 824-79-51
or e-mail: [email protected]
Literature
1. Practical dermatology; dermatologists: Małgorzata Opalińska, Katarzyna Prystupa, Wadim Stąpór, Wyd. Lek. PZWL 1997. 2. Sun protection during sports - internet materials provided by the Central Institute for Labor Protection - National Research Institute of CIOP-PIB
3. Hyperpigmentation pigmentation disorders as a cosmetic problem; Aneta Urbańska; New Medicine - Dermatology V notebook 120 (1/2003).
4. Sun and skin - a series of publications; dr. Catherine. med. Katarzyna Prystupa (allergist-dermatologist), Edward Ozga-Michalski, Anna Gotowiec; My health; 1997-2000
5. Genetic determinants of melanoma, Advances in Dermatology and Allergology 1/2006; Team of doctors: Urszula Brudnik, Anna Wojas-Pelc, Wojciech Branick
6. Primary malignant melanoma of the head and neck; Karolina Hydzik-Sobocińska, Marcin Sobociński; "THERAPY" No. 6 (153), JUNE 2004; Chair and Clinic of Otolaryngology at the Jagiellonian University Medical College in Krakow; Head: prof. dr hab. med. Jacek Składzień
