sensitizer

例句：

1. 1. The chemical was a potent sensitizer for the sensitive skin.
   这种化学物质对敏感皮肤具有强烈的刺激作用。
2. 2.The doctor warned that exposure to this sensitizer could cause serious health problems.
   医生警告说，暴露于这种刺激剂可能会导致严重的健康问题。
3. 3. The factory is using an allergen-free sensitizer in its production process.
   这家工厂在其生产过程中使用了无过敏原的刺激性物质。