Summer’s almost there and that means – besides going to the beach and drinking wine on the balcony all night – you’re probably going to do your workout in the park instead of the gym. You will spend a lot of time in the hot sun, which will hopefully get you a great tan. But don’t forget, UVA and UVB rays can cause skin damage. Eventually it can even lead to cancer. You probably think that any sunprotector will take care of you, but you’re wrong. We’re going to tell you everything you need to know about sunprotection and how to use it during your workout.
Sun protecting factor (SPF)
Sun protecting factor, also known as SPF, is the most important ingredient in a sunscreen. It indicates how long you can stay in the sun without burning. The higher the SPF, the more sunprotection is provides. A SPF 15 blocks 93% of the UVB-rays, a SPF 30 blocks 97% of the UVB-rays and an SPF 50 blocks 98% of the UVB-rays. SPF only relates to UVB. Sunscreens vary in their ability to protect from UVA and UVB.
How to apply
To get the full SPF of your sun protector, you need to apply about a shot glass full. Most people only use a quarter of that, which makes the SPF on their body lower than on advertised on the bottle. You need to apply the sunscreen about 30 minutes before sun exposure. This way the ingredients can fully bind to your skin.
No sunprotector should be expected to stay effective for more than two hours. You have to repeat applying the sunscreen whole day long. Sunscreen should also be reapplied after swimming, towelling off or intense sweating. UVB causes sunburn, but UVA can do a lot of damage (for example: wrinkles) without even noticing. Reapplication is as important as putting it on in the first way.
During hot, sunny days it’s important to protect yourself every day, even though you are working inside because you still get in touch with the harmful rays.