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How Often Should You Apply Sunscreen?

We all know by now that SPF is an essential for any summer holiday. It protects your skin from UV rays, health risks as well as premature skin ageing. But how often do you need to apply sunscreen, to ensure that it is at its utmost effective?

apply sunscreen

Before Sun Exposure

A common mistake many make is waiting till they are lying out on their sunbed before they begin to apply sunscreen. Yet, in fact, you need to apply sunscreen about 20-30 minutes before you expose your skin to the sun. This will ensure that the ingredients in the SPF can really begin to work the moment you step outside.

During Sun Exposure

SPF should be reapplied every 2 hours. If you go swimming, play a sport or simply sweat from the summer heat, sunscreen should be immediately reapplied.

When it isn’t Sunny

Even when it is cold or cloudy, you must still wear SPF. It is a misconception that UV rays are non-existent or cannot penetrate the skin when it isn’t hot or sunny. You must always apply sunscreen because up to 40 percent of the sun’s ultraviolet radiation reaches the earth on a completely cloudy day.

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Source: 
Skincancer.org

How To Get Vitamin D Safely From The Sun

vitamin d

Why is vitamin D important?

Vitamin D is vital for healthy bones, teeth, and muscles, as it helps the body to absorb calcium and phosphate from your diet. Suffering from a vitamin D deficiency could lead to some really bad health problems like soft and weak bones. The sun is one of the best sources for this vitamin but is also one of the biggest causes of skin cancer. Consequently, you just need to find the right balance between a healthy dose of sunlight and excessive sun exposure.

How long can you be under the sun?

Most people can make enough vitamin D from being out in the sun daily for short periods. What’s more, you only need to have your forearms, hands or lowers legs uncovered to get an effective amount of vitamin D production. So we are sorry to say that for those who love to sunbathe, it is both detrimental to your health as well as being an entirely unnecessary risk.

What factors are at play with vitamin production?

It is important to remember that there are several factors that can impact how much vitamin D is made from sunlight, such as your skin colour. People with dark skin will need to spend longer in the sun to produce the same amount of vitamin D as someone with lighter skin.

However, regardless of skin colour, you should still be vigilant about protecting your skin from burning. According to Cancer Research UK, though people with naturally brown or black skin are less likely to develop skin cancer, it does not make them invincible to it. Often, the most common parts of the body that are not exposed such as the soles of the feet can be affected by skin cancer.


Sources:
Cancer Research
NHS