-
Unpreserved aqueous solution
Hello, I am working with an unpreserved aqueous solution with pH 3.8. The solution contains only water and one other ingredient. I was wondering for how long is such a solution safe to use topically if it is kept in a fridge at 8°C? I am worried about bacterial colonization but ideally I would like to use the solution for 3 days before making another batch.Thanks for the help. -
1 Reply
-
pH 3.8 in the fridge: 3 days for use on healthy skin should be okay but it might depend on that mystery ingredient of yours
.
Log in to reply.