How long does osmo oil last once opened?

Excuse me, I have a question regarding the shelf life of osmo oil once it's been opened. Could you elaborate on how long this product typically retains its effectiveness after the initial use? I understand that storage conditions play a significant role, but I'm curious if there's a general guideline or estimate for its longevity. Additionally, are there any specific steps I should take to ensure it remains fresh for as long as possible? Your insights would be greatly appreciated.