He suggests choosing a broad-spectrum sunscreen, which blocks both types of UV rays, UVA and UVB, with an SPF of at least 30.

选择一款能够阻挡UVA和UVB两种射线的广谱防晒产品吧，切记SPF值要至少达到30以上。

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SPF 30 sunscreen protects skin against damaging UVA and UVB rays. Vitamin E and Pro-Vitamin B5 formula helps protect skin from environmental damage caused by free radicals.

SPF 30 的防晒值，抵御UVA和UVB，维他命E和维他命原B5，帮助保护皮肤免受环境污染造成的自由基损害。

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The minerals also contain natural SPF to protect against UVB and UVA rays, they replace the skins natural keratin layer that is so important as a defence against bacteria and UV rays.

矿物也含有天然的SPF，以防止紫外线和长波紫外线照射，他们取代皮肤的天然角蛋白层，是如此的重要，作为抵御细菌和紫外线。

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Rules implemented last year by the U.S. Food and Drug Administration say that only sunscreens that are broad-spectrum protecting against both UVA and UVB rays and that have an SPF of 15 or higher can claim to reduce the risk of early skin aging and skin cancer.

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