How do we know how effective a sunscreen is at protecting our skin from UV radiation? How is sunscreen tested? What do SPF and UVA-PF stand for? What’s the difference between the two? So many sunscreen-related questions, so little time! In part II of this three-part scientific sunscreen guide we are looking at how sunscreen is tested and how to work out which sunscreens will offer better protection (particularly UVA protection).
Daily sunscreen use is on the rise as people begin to realise just how damaging UV radiation can be for the skin. However, there is still plenty of confusion regarding how to choose a sunscreen with good UV protection. Is a moisturiser with added SPF ok? Are physical sunscreens better than chemical? How do you know whether a sunscreen is broad-spectrum? Are higher SPFs always better? How do you know how good a sunscreen is at protecting against UVA damage? Do you need to worry about visible light or infra-red? Should you wear sunscreen indoors?
These are just a small selection of the hundreds of possible questions that may go through your head when trying to decide on a sunscreen.
Hopefully, after reading this three-part guide, you will have a better idea of the importance of sunscreen, how sunscreens work, how UV protection is measured, and how to make an informed decision when choosing a sunscreen.
There are many skin benefits of niacinamide and a number of reasons you should add it into your skincare routine. Niacinamide is a water-soluble form of Vitamin B3. When applied to the skin, it supports the skins barrier function. This reduces the amount of water lost through the skin and improves hydration. So, what can niacinamide do for your skin? Well, here are 3 great skin benefits…