…but if One Drop ever decided to make a looper, I’m sure they would come out with the most awesome thick lube… 
db
P.S. With regards to the original question, as long as you keep the cap on the lube you should be good to go, as it contains no petroleum distillates and the evaporation rate is very small due to the low volatility of the chemical compounds in the lube. The lube should survive for years in the bottle, as long as you keep it away from extreme temperatures (hot and cold) and out of direct UV light (sunlight or fluorescent lights), as the energy in the ultraviolet spectrum will cause the compounds to break down over time.