The sun has given us so much. For example: Flowers, sunrises, sunsets, vitamin D, but also some problems, which despite all the generosity of the sun, still force people to protect themselves from this star so close to the Earth. To protect yourself from the sun, you don't need more than an SPF cream, which protects you from ultraviolet rays, premature aging of the skin, wrinkles and skin cancer.
What does 'SPF' mean?
The SPF in a sunscreen is the sun protection factor and indicates how much protection the product offers against the sun. While sunscreen is created in laboratories, SPF is set according to how long it manages to protect the skin from sunburn, explains Dr. Arash Akhavan, certified dermatologist and founder of "The Dermatology and Laser Group".
However, it should be clarified that SPF is not related to the duration of exposure to the sun, but to the time you are exposed during the day. At noon, the sun's rays are much stronger than in the morning. Of course, it also depends on the location. States near the poles have less sun and therefore less exposure to it.
Sun protection also depends on the person's skin type and how often they reapply it.
The difference between SPFs
SPF levels depend on the protection they provide to the skin from UV rays. Experts explain that:
SPF 15 blocks 93% of UV rays
SPF 30 blocks 97%
SPF 50 blocks 98%
SPF 100 blocks 99% of UV rays
Does the level of SPF you use matter?
Dr. Akhvan recommends using the highest level of SPF you feel comfortable with. According to the National Health Service, it is recommended that the minimum level of SPF is 30. So, from 30 and above.
Face and body need different SPF?
Dr. Akhvan points out that it is not necessarily necessary, if the SPF is +30. But SPF for the face usually has a different formula, as it adapts to the use of makeup, and can be water resistant. A water-resistant SPF is ideal for the face. As for the body, SPFs are usually thicker in texture and can leave white marks.
Who should use sunscreen?
Practically, anyone who is over 6 months old. For babies under 6 months, it is recommended to stay in the shade and wear clothes that have materials that protect them from the sun. For anyone else, a sunscreen with SPF 30 or higher is absolutely necessary.
One more clarification: People who have darker skin tones and tend to burn more slowly in the sun, does not mean that they will not be affected by skin problems and cancer, so they cannot get away with using SPF.
How much SPF do you need?
Most likely, more than you think. For each application, experts recommend such an amount:
1 shot glass for the body
½ teaspoon for face and neck/ 3 ample lines on 3 fingers.
How often should you reapply SPF?
Every two hours if you are at the beach or sweat a lot. 3 hours in case you are in other areas and you don't have much of a problem with sweat.
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