5. Hydration of the skin generally favors percutaneous absorption. The TDDS acts as an occlusive moisture barrier through which sweat cannot pass, increasing skin hydration 皮肤的水和作用通常有利于经皮吸收 TDDS可以作为隔绝湿气的屏障(汗水不能 通过),使皮肤水合化程度增加。5. Hydration of the skin generally favors percutaneous absorption. The TDDS acts as an occlusive moisture barrier through which sweat cannot pass, increasing skin hydration. 皮肤的水和作用通常有利于经皮吸收。 TDDS可以作为隔绝湿气的屏障（汗水不能 通过），使皮肤水合化程度增加