Triclosan is a powerful anti-bacterial that was developed nearly 50 years ago .
三氯生是一种强效抗菌剂，近50前年研制。
In 2009 , the scientific committee for consumer safety , an independent body of experts reporting to the eu commission , confirmed the safety of triclosan as a cosmetic ingredient , as commonly used , at a limit of 0.3 per cent .
