When you buy a sunscreen check its SPF [ protection factor]. Sunscreen is a must for all seasons and that includes even the cloudiest of days, as it can cause damage to the skin. The ingredients in the sunscreen protect the skin by blocking, absorbing or scattering the UV radiation. It should be reapplied if you propose to stay in the for longer hours. For instance, the sunscreen is rated as SPF 15, a person can stay for around 150 minutes in the without burning.

Multiply the SPF by 10 and you can figure out how long you can stay in the sun.

The rating states how long a person can be in the sun. With SPF 30 you should be able to stay for 300 minutes before burning. Do keep in mind, the damaging UVB and UVA rays of the go through the skin irrespective of the climate, causing the harm. The Importance of Applying Suncreen Our skin needs to be protected any time when is exposed to daylight and, not just when we think our chances of exposure is high.

SPF is basically the amount of UVB protection a sunscreen gives and sunscreens are typically rated by the protection factor.

Appropriate application of sunscreen on daily basis is as essential as appropriate cleansing.