We’re constantly reminded to wear SPF, but why? Moisturisers with sun protection are formulated to protect us from harmful sun rays which can damage our health in the short and long term. One of the most important rules when spending time in the sunshine is to protect before you are affected.
Look at the best before date
You may think that because SPF isn’t edible it doesn’t have an expiry date, you are wrong. It’s important to check the packaging and make sure it is still just as protective as it was first formulated to be.
How much you apply
It’s not just for stopping sunburn, there’s a science to it. The FDA have suggested 2mg per square centimetre of skin. Imagine using half a tea spoon for your face and neck whilst using more for your legs, arms, chest and back. Apply a small amount and let it sink in, then apply the rest so the skin is fully topped up. Repeat depending on the severity of the sun UVA or UVB rays.
Don’t rub it in
SPF moisturisers need a chance to sink in, avoid any old habits to rub in but to leave it to sit and protect the skin whilst leaving pores unclogged. It will also avoid your palms soaking up most the goodness.
UVB rays really are that bad
There are many types of sunlight, but ultraviolet B rays are the ones which damage your skin and are responsible for producing sunburn. UVB rays can also be responsible for causing skin cancers including malignant melanoma.