HomeA-Z of terms and ingredientsSun Protection Factor (SPF)

Sun Protection Factor (SPF)

The Sun Protection Factor given as a number on the front of a sunscreen product is an indication of the amount of protection a product provides against sunburn, which is mainly caused by UVB rays.

Sunlight is made up of visible light, infra-red light and UV (ultra violet) rays.

The SPF number is an industry initiative that has standardised the way a product's UVB protection is indicated throughout the UK, Europe and much of the rest of the world.

The higher the SPF factor the higher the protection and SPF 15 is a recommended minimum.

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