Do these HCG drops need to be refrigerated?

This HCG does not have to be refrigerated because it is made in the homeopathic method and mixed with alcohol as part of its liquid medium. The alcohol acts as a preservative and keeps the HCG active and effective. If you are not going to use an open bottle of HCG for a few days or several weeks, you should place the bottle in the refrigerator to hold potency over longer periods.