It is very important to apply a sun protectant any time you go out in the sun . Especially before going swimming or participating in outdoor sports.
Usually on product labels you will come across “SPF”, which means “Sun Protection Factor”, which is the estimated maximum “amount” of UV (Ultra Violet) radiation that the product can protect your skin from.
There are two basic types of ultraviolet rays that reach the earth’s surface UVB (UVB stands for the type B ultraviolet ,which is the middle energy
between the tanning rays (UVA) and the intense germicidal UVC) and UVA( type A Ultraviolet which the nearest to visible light which causes tanning and aging of the skin).
UVA rays also play a role
in skin cancer formation. In addition, the UVA rays penetrate more deeply into the skin and play a greater role in premature skin aging changes including wrinkle formation (photoaging).
There are approximately
500 times more UVA rays in sunlight than UVB rays. Continue..