Ive kept this in my closet inside a bubble mailer envelope. Its not in direct sunlight and my closet is closed all day behind wooden sliding doors. Anybody else have theirs change colors? Is it still good?
Most likely its the fragrance concentrating or discoloring because it sat for so long. Have you tried to give it a good shake? But if you have doubts of course you shouldn’t use it.
I think it must be the high none products which have this issue. all bottles of UF project turns yellow soon. while nols and TAA dont. (IO, IH and Shine) AMMO dosent turn this yellow either. nor does tuth. I dont have IJ in togo.. so cant speak about that unless UF has higher none than IJ which I doubt anyone outside the androtics team know
Some will discolour in time but I’ve yet to notice any change in effectiveness. 
Great thanks