Question
Posted on: March 6 2013How long is an open pack of retinol (without inert gas) stable?
Problem: The packaging of retinol water soluble mentions: "Open as soon as possible use; Unused amount of storage under inert gas ". How can we solve this in practice? Retinol acetate also mentions a storage under inert gas. How long is an open packaging (without inert gas) stable?
Answer
I fear that the producer has an answer to this. I have only one possibility and this is the open volume that forms in your bottle of raw material after taking out a certain volume of vitamin, to be filled with glass pearls so that there is as little air as possible in the vial. Data regarding the stability of an opened pack of retinol I have not available.