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Without question, daily, consistent use of a broad-spectrum SPF 30 or greater 365 days a year, rain or shine, is the best way to preserve the health of your skin and reduce the risk of early skin ageing (fine lines, uneven skin tone, and loss of radiance) and even skin cancer.
As great as broad-spectrum sunscreen is, it doesn’t offer 100% protection from the harmful rays we encounter daily. For example, a sunscreen with SPF 15 keeps out approximately 93% of bad ultraviolet (UV) rays, SPF 30 equates to 97% protection and SPF 50+ garners about 98%.
SPF is an everyday essential for healthier and younger-looking skin, whether it comes in a moisturiser, primer or foundation. Better yet, all three! But how exactly does SPF work and how is it measured?
Vitamin D is essential for our overall body health. Exposing your skin to the sun is one way to get it as UVB radiation from sunlight triggers the skin to make vitamin D, but there’s a catch: unprotected sun exposure damages skin. And then there’s the fact that for most people, sun exposure isn’t an effective way to get vitamin D anyway.