An effective sunscreen must protect your skin against both UVA and UVB radiation. You Silken Face Day Creamshould buy sunscreen products based on their Sun Protection Factor (SPF), which is the most crucial factor you need to check. It represents the degree of protection the sunscreen offers against UVB radiation. The fairer the skin the higher SPF is necessary for a more effective protection. The UVA protection provided by sunscreens is measured by a star rating system. The stars range from one, for mild protection, to four, for the highest protection against UVA radiation.
However, this is not sufficient. The sunscreens that offer real protection are those containing strong antioxidant substances, as well as moisturizing ingredients.
The following table shows all available SPFs and different protection levels that a sunscreen can offer*:
SPF PROTECTION LEVEL
- 6 to 10 Low
- 15 to 25 Medium
- 30 to 50 High
- 50+ Very high
To understand how this rating system works, SPF 50 blocks sun beams just by 1% more (98%) than SPF 30 (97%).
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