15, 30 or 50: what does the SPF number on sunscreen mean?

In general, these numbers indicate how much time you can safely spend in the sun before getting burnt.

If your unprotected skin usually takes 10 minutes to burn, then SPF 15 sunscreen will protect it, so you can stay in the sun 15 times longer. That is. about 2.5 hours.

Does this mean SPF 50 will provide all-day protection?

No, because all sunscreens need to be reapplied after 2-3 hours.

Why then even buy high SPF sunscreens?

They are more reliable. Products with SPF 15 protect against 93% of UVB rays, while they must be applied in a dense, even layer. Products with SPF 30 – from 97%, and with SPF 50 – from 98%. The difference is not too big, but very fundamental. Products with a high degree of protection are recommended for children, people with fair skin, as well as those who have many moles on their body.

How to apply the sanblock correctly?

  • If you apply the cream all over your body, you need at least 30 ml. (about 2 tablespoons). It is of course important that the cream is applied evenly.

  • Apply SPF cream 15 minutes before going outside, because the active ingredients take time to start working.

  • Reapply every 2-3 hours, even if it is waterproof.

What else do you need to know?

In summer, it is best to always choose a moisturizer for your daily care with a sun protection grade. It will protect the skin every day no worse than a special cream.

Remember that the sun’s rays also penetrate through the glass, so drivers should not neglect sun protection on clear, hot days.

When protecting your skin from the sun, do not forget about the area around the eyes and lips. These areas are especially sensitive, so it is worth using an SPF lip balm and sunscreen on the upper eyelid area under the eyebrows.

You can store sunscreens at room temperature, but no more than 12 months. After that, you will have to buy a new one.

Now you may already know this, but there is no harm in reminding sunburn and protecting against skin cancer, so go ahead and spread this knowledge!

Фото: Getty images Russia


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