Added: 12/02/2005 |
Sun protection factor, SPF valueThe sun is the main source of life on the Earth. Under the influence of the sun's rays, vitamin D is synthesized in the skin which is necessary for strengthening bone tissue. Sun baths give us energy, improve our mood, and has a healthy effect. Because of the sun, our skin receives a beautiful golden color. However, the sun's rays can also be harmful if one doesn't observe some simple rules.
One of the reasons that our skins ages, is the influence of the ultraviolet rays of the sun. They destroy its lipid barrier that causes small wrinkles and the skin becomes dry and lifeless. Tanning is a protective reaction of the body to radiation. Under the influence of ultra violet rays, skin cells produce melanin that causes a tan to form. But, if you abuse lying in the sun, it is possible to get bad sunburn. By the way, sunburn increases the chances of skin cancer by leaps and bounds. That is why it is necessary to use a special sunscreen at the beach and in the city. Before going out, please put on sunscreen and refresh it regularly by layering it on the skin.
So, what is SPF? SPF is short for the sun protection factor or the index of activity of a sunscreen under the reflection and blocking of the sun's rays. When it comes to choosing a sunscreen it all depends on skin type, sun intensity, and the amount of time you are going to spend in the sun. SPF value meaning consists of the following: the bigger the sun protection factor is, the more effectively it protects the skin from the sun. Pay attention closely to see is the sunscreen is water-resistant.
If you have very sensitive ski then, it is recommended that after bathing, you put on sunscreen again. First of all, it is necessary to determine your skin type and its sensitivity to the sun's rays. It helps to calculate your time for sunburn and choose the right sunscreen. Usually, sunscreen tubes have information about SPF.
There are five types of sunscreen according to which certain sunscreens with SPF should be chosen. The first type is characterized by very light and over sensitive skin. The hair, as a rule is red and the eyes are green or blue. The face is usually covered with freckles and the skin can't seem to get a tan. It reddens and gets sunburned easily. If you have this skin type, try not to tan, and choose a sunscreen with the highest possible sun protection factor, which is SPF 30.
The second type of skin has the following features: the skin is light and very sensitive. The hair ranges from light red to light blond. Freckles happen sometimes. At first, the skin gets red and a weak tan appears later on. It is recommended to use a sunscreen with SPF 24 for the body and one with an SPF of 30 for the face. After that, try to lower the sun protection factor to 18 and 20 respectively. If your face is getting sunburn, you should raise the sun protection factor.
The third type of skin is one of the most widespread and has the following features: The skin is neither very light nor very dark. The hair is dark blond, brown, or light brown. The skin gets a fast tan, but it only receives a chocolate color. The first 5-6 days it is possible to get sunburn. Try using SPF 18 or 20 within the first three days with this skin type. Later on, decrease the sun protection factor to 10 or 8. For the fourth type of skin SPF 10 or 8 will do nicely and for the fifth type of skin, the sun protection factor should be 6 to 4.
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