Can Ainny loofah water be used for a long time?

I can't use it because cosmetics contain certain nutrients. Generally, cosmetics should be used within six months after opening, otherwise it is easy to breed bacteria and is not good for the skin. Besides, I also used that loofah water. Because I was not at ease, I did an acid-base test, which was too alkaline and would do harm to my skin for a long time.