Hitting many parts of the world, the summer heatwave calls for cooling skin protection, otherwise wrinkles can easily appear on your face. Gauged by Thermal Protection Factor (TPF), this new concept of skin protection is the result of a decade of research on heat-induced skin damage.
Sulwhasoo hanbang researcher, Park Sung-il.
Sun Protection Factor (SPF) refers to protection against skin-burning UVB rays, whereas there is no international standard for measuring UVA protection, which can be indicated by a sunscreen's PA, IPD or PPD. UVA rays cause premature skin ageing, and using sunscreen can thus help delay wrinkles. In this context, they are considered anti-ageing skincare.
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