Main compositions: Pomegranate essence, Inert type white VC, NMF aminophenol inductor, Extract of sweet tea, Ultra micro pearl powder, Unique factor. 主要成份:红石榴素、安定型净白VC、NMF氨基酸诱导体、甜茶萃取液、超微细珍珠粉、特制因子。
Because the ring is an inert type of IUD, one of its drawbacks is a high pregnancy rate. 和其他惰性IUD一样,带器妊娠率较高是其缺点,有待改进。