And in 1915, it became available without a prescription which made it the first synthetic, over the counter drug.

在 1915 年，它无需处方就可以买到，这使它成为第一种合成的非处方药。

So in the United States, sunscreen is regulated as an over the counter drug. And that's been happening since 1978.

在美国，防晒霜作为非处方药进行监管。这种情况从1978年就开始了。