How long will the likes of A314 keep for if not used??? anyone know???
I read somewhere that since it’s an oil, it lasts for at least 12 hours… and someone in this forum said you could notice it a little bit the next day.
If kept in a reasonably cool, dry place, away from strong light, many years. I still have mones I bought in 2004 that work fine.
As for live applications, I find I need a refresh every 4 or 5 hours to remain at peak.
No sorry i meant how long will they saty good if left in the bottle, as in if i had two bottles of A413 how long could i wait to use them.
I dont know, but i would think a few years with proper storage.