The variation from pink to brown not only helps to prevent sunburn but also allows appropriate amounts of sunlight to penetrate the skin to create the vitamin D3 from its inactive precursors.
从粉色到棕色的变化不仅帮助防止了晒伤，而且还让合适数量的阳光穿透皮肤从而把未激活的前体变成维生素d3。
Regular and frequent use gives protection against sunburn and helps prevent skin cancer and premature ageing of the skin due to sun exposure.
定期和经常的使用，让防晒保护，有助于预防皮肤癌和皮肤因日晒过早老化。
Regular and frequent use gives protection against sunburn and helps prevent skin cancer and premature ageing of the skin due to sun exposure.
定期和经常的使用，让防晒保护，有助于预防皮肤癌和皮肤因日晒过早老化。
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