Chemical Engineer Cigdem Kemal Yilmaz has explained the importance of a sun cream's PA factor.
Sun worshippers are being urged to check that their sun cream bottle boasts a specific symbol to ensure full protection.
While SPF protects against UV levels, a cream with this alone offers only UVB ray protection - which change the skin's colour - but we still need protecting from UVA light radiation - which causes premature skin ageing and impacts skin cancer. The letters will usually be accompanied by one or more plus sign symbols , which mark its variations.
"If you see a sunscreen which has both the SPF and PA measurement, you can determine it as being broad-spectrum protection against both UVA and UVB rays." For example, if the sunscreen has a PA++++, the current highest rating of UVA protection, it means it protects up to 16 times more against UVA than you would have without the product.
With no shortage of sun creams available to purchase, it can be tough to know which is best for you. But Misss Yilmaz stresses that we should add an extra layer of SPF alongside our cream of choice.
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