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SKIN CARE ENGLISH GOOD SUN, BAD SUN, We can't live without it, yet we can't live (unprotected) with it. The sun lowers blood pressure and improves sleep. It ensures the formation of vitamin D, has an influence on the hormonal and immune systems, and lifts the mood. But it also causes the skin to age faster, can damage eyes, trigger allergies, lead to sunburn if left unprotected and, in the worst case, cause skin cancer. With the help of Witzleben Apotheke, we find out what else we should know. Foto: Nathan Dumlao - UV RADIATION FROM THE SUN The natural UV radiation from the sun is divided into UV-A, -B and -C radiation. The longer-wave UV-A radiation reaches the earth largely unhindered. Depending on the state of the ozone layer, up to 10% of the high-energy UV-B radiation reaches the earth's surface. If the ozone layer is damaged, the percentage increases. The particularly highenergy UV-C radiation is completely filtered out in the upper layers of the atmosphere. The strength of the natural UV radiation on the earth's surface also depends on the location and the position of the sun. In addition, water, sand and snow reflect the sunlight and thus intensify the radiation. INFRARED A RADIATION Unfortunately, some wavelengths in the shortwave range of heat-transferring infrared rays, called infrared A radiation (IR-A), promote premature skin aging due to so-called free radicals. These are aggressive oxygen compounds that can damage the body's cells. Since it has not yet been possible to filter out these IR-A rays, we offer sun protection products that contain a special IR-A protective complex. This is directly active in the skin cells and prevents the breakdown of valuable collagen, which is important for skin elasticity. NATURAL CALLOSITY The sun's UV-A tends to tan quickly, but not lastingly. It is the radiation that can cause allergic reactions. UV-B radiation, on the other hand, which can ultimately also trigger skin cancer, stimulates enzymes in the melanocytes to produce the skin pigment melanin. Even with a low dose of radiation, the skin becomes 14 CHECK NRW #2

SKIN CARE pigmented, where light calluses develop. They reflect, filter and then scatter the sunlight and thus improve the skin's own protection. This callosity depends on the individual skin type, starting with skin type 1 (very light skin), which can be exposed to sunlight for a maximum of 3-10 minutes without protection before getting sunburn – up to skin type 6 (dark to black skin color), where sunburn would only happen after more than 90 minutes. SPF The term sun protection factor ( SPF) describes the factor that increases the time that you can safely spend in the sun after applying the product – depending on your personal skin type. However, there is no product that provides full protection with a single application. So if a fair-skinned person with skin type 1 applies SPF 30 and multiplies that with their own protection time (3-10 minutes), they could spend 90 minutes to approx. 5 hours in the sun, but still have to reapply it approximately every 2 hours. The time can then no longer be extended. Here the body should be given rest and shade – for at least two hours! CAUTION Since some of the UV radiation penetrates the skin despite sunscreen and damages the skin before sunburn occurs, sunscreen should not be used to simply extend how long you can stay in the sun. The duration of protection, which is increased according to the sun protection factor, should not be pushed to the limit – up to 60 percent is recommended! (Source: schutz/sonnencreme/sonnencreme.html) The recommended amount of sun cream for the entire body is roughly the size of a golf ball! It is important not to forget the neck, ears and back of the hands in addition to the larger areas of skin. In addition, care should be taken to ensure that cream is applied when wearing thin summer fabrics because clothing partially but not completely blocks out UV radiation. You should also wear a hat and sunglasses to protect against sunstroke and eye damage. COLOURED WORKS OF ART THAT SUFFER FROM THE SUN: TATTOOS Tattooed parts of the body are relatively sensitive to light and especially when they are fresh. In addition, the needle also causes minor skin injuries. So the best thing to do is to avoid the sun for a few weeks until the skin has healed. To protect the tattoo and its luminosity, we recommend sunscreen with a high sun protection factor, preferably SPF 50+. For tattoo-free parts of the body use a factor corresponding to the skin type. The sun care products available on the market especially for tattoos usually also contain panthenol, which supports the skin's own repair mechanisms. This active ingredient is also in the after-sun preparations, which we also highly recommend. (mm,ts,mb) With the kind support of the Witzleben Apotheken Witzleben Apotheke 24 Kaiserdamm 24 | 14057 Berlin Tel. 030 | 93 95 2030 Witzleben Apotheke 26 Kaiserdamm 26 | 14057 Berlin Tel. 030 | 93 95 2000 Author: Michaela Medrow pharmaceutical representative and cosmetologist CHECK NRW #2 15

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