The product does not contain any live microorganisms, it has characteristics of low pH and high purity, it is very stable so can be stored under room temperature for 2 years. It does not contain any additives or preservatives, please follow the following instructions to avoid any contaminations:
-Use the dropper to obtain the essence first then add in the water to dilute it.
-Avoid the dropper from any contact with other substances including water.
-Do not use the dropper to stir the solution.
-Do not change the containers.