bldoink wrote:I believe the ingredient that is losing potency is the alprostadil. So how quickly your mix loses potency at room temperature of just refrigerated will likely vary depending on how important the alprostadil is to your mix.
When I carried out my experiments with leaving out of the fridge for many weeks, the mix was Alprostadil:Papaverine:Phentolomine = 20:25:1
So not light on Alprostadil.