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Be careful when choosing sunscreen!
When choosing a sunscreen, be sure to have a minimum SPF of 30 or higher, a broad spectrum (UVB and UVA-effective) and water-resistant and such products should be preferred. The SPF value on sunscreens is the protection against UVB, which is mainly responsible for sunburn. A product with SPF 30 blocks 95-97% of UVB reaching the skin. Although UVB protection is not significantly increased, a product is considered to have increased UVF protection as its SPF value increases. There is no widely accepted numerical value for protection against UVA. The UVA logo on the product packaging indicates that the product provides adequate protection against UVA.
Chemical and Physical Protectors
Generally, sunscreen products (sunscreen etc.) can be divided into chemical (organic) and physical (inorganic, mineral) preservatives. Chemical preservatives are absorbed from the skin and react with the absorbed sunlight. Some of the chemical preservatives are UVB and some are protective against UVA.
Titanium dioxide and zinc oxide are physical solar filters. They are not absorbed from the skin, they form a thick, white layer on the skin and function by reflecting all of the sun’s rays around. In other words, they provide a wide spectrum of protection against both UVA and UVB. Eye contact or ingestion is not a serious problem, it is safer than other preservatives. They are considered the most suitable preservatives for children.
Although sunscreen creams are not recommended for infants under 6 months of age, physical sunscreen creams may be applied to areas not covered by clothing. Infants and children over 6 months old may be protected by chemical sunscreen creams for children or children. Products in the form of spray are not recommended for infants and children due to the risk of inhalation.
How to use sunscreen?
Sunscreen should be applied 15 minutes before sunbathing, ears and scalp, and application should be repeated every two hours. 2 mg product should be used in each 1 cm² skin area. In practice, the amount required for using the right amount of sunscreen is half a teaspoon for the face and 30g for the body. Expressions such as sonrası waterproof ve, uygulama all day protection c, c resistant to perspiration lan on the products should not be taken very seriously. In other words, sunscreen should not be applied only, but must be driven again and again. In addition, sunscreen products should be used not only to spend more time in the sun but in addition to physical measures to protect against sun damage.
Various speculations in the non-scientific environment about the side effects of sunscreen products have resulted in the emergence of products that claim to be er natural çev or konusunda organic lan in the sunscreen product market, although they are unproven and exaggerated. Many of these products sold with the SPF 50 label have actually been shown to have SPF8 protection. The content and effectiveness of the sunscreen products of reliable dermocosmetic brands sold in pharmacies are controlled by strict inspections and they do not contain the contents which are known to have harmful effects. No adverse effects known to be developed by the use of such products have been shown.
The synthesis of vitamin D, a hormone-vitamin with a wide range of important functions in our body, is carried out by the absorption of UVB rays from the skin. It is known that it has a protective effect on the development of various diseases as well as its positive effects on the skeletal system. On the other hand, the current approach to meeting the need for vitamin D is to provide with dietary or daily food supplements instead of getting it from the sun and skin.
Although it is thought that the vitamin D synthesis in the skin will be prevented by the use of sunscreen products, it has been shown that sufficient amount of vitamin D is produced in the individuals who use the protective products regularly from the sun. Only the face and arms exposed, 3 times a week, 10-15 minutes to stay in the sun with an adequate amount of vitamin D is synthesized. By exposure to the sun above these times, no more vitamin D synthesis occurs. In addition, since the UVB cannot pass through the skin in people who have dark skin or bronzed, vitamin D synthesis cannot be performed sufficiently.
In order to increase the synthesis of vitamin D, it should be avoided under long periods of unprotected sun. The American Academy of Dermatology considers that the need for vitamin D should be met by foods rather than the sun, and that nutrients should be taken with nutritional supplements.