Before choosing sunscreen, you should be careful to avoid exposure to direct sunlight without covering the body with protective clothes, long sleeve with hood and sunglasses and umbrellas, if necessary, or stay in the shade.
Peak time is from 10: 00 am-2: 00 p.m. to 4 p.m. in the summer. This period is characterized by the emission of larger amount of harmful ultraviolet radiation to the skin from the Sun, it is therefore recommended that to use sunscreen and put large amounts on sun-exposed skin areas.
There are many questions about using sunscreen and how to choose when you buy including:
What is the meaning of [broad-spectrum] that is written on sunscreens?
Protective sunscreen creams protect against both types of ultraviolet A (UVA) and B (UVB) where they are direct reasons for skin cancer and other damage as follows: -UVA can cause a premature skin aging appear to form wrinkles and dark spots, it penetrates the glass so it is advisable to put sunscreen even if the person in a place surrounded by glass and the inside of the car.
-UVB mainly cause sunburns but not passing through the glass on the reverse of the type (UVA).
Is it better to have a coefficient of a high SPF sunscreen?
Sun protection factor (SPF) is a measure of the ability of sunscreen on UVB on the surface of the skin.
This factor is determined based on the time it takes for the skin to burn when using Sun-protective substance compared to not using it. Usually recommended using sunscreen with a factor of at least 30, prevention, since protect against 97 percent of the Sun's harmful rays.
What is the best pharmaceutical form for use of sunscreen?
Pharmaceutical form is chosen according to need and desire. Using a sunscreen that is placed directly on the skin area will achieve better results. For example, those with dry skin might prefer to use protective sun creams, especially on their faces, while it is better to use the sprayer to areas containing hair, such as the scalp and chest hair in men.
Some people prefer the use of sprayer for kids for frequent movement and difficulty of putting sunscreen properly.
General Tips for using the protective sunscreens:
-Put sunscreen on your skin before sun exposure time 30 minutes.
-Use sunscreen on all exposed skin surfaces without neglecting small areas like ears.
-Reapply sunscreen every two hours and after swimming or excessive sweating.
-Put into mind that sand, water and snow reflect sunlight and make the use of sunscreen is of great importance.
-Use sunscreen in the cloudy skies due to penetration of UV for the clouds.
-Use sunscreen all year round and not just during the summer only.