Described herein are systems for removing selected components, e.g., stabilizing agents or preservatives, from a liquid composition just prior to use, using activated charcoal or an affinity matrix filter, together with variant and alternative designs, methods of making and using the product, and components thereof.本文係描述於使用前,使用活性碳或親和基質濾器,從液體組成物中移除選擇組份,例如安定劑或防腐劑之系統,以及變化和替代設計、製造和使用產品之方法及其組份。