Need some advice - I have been off for more than a year but had bought my next 2 cycles' gear in advance and have stored it (not exposed to heat or light) for around 18 months. I opened up my pack to review what I've got and I noticed that the tren enan appears to have darkened in color and when I broke the seal the rubber has a bump/nipple pushing up on it. Now I didn't take pics of the color beforehand so I don't have anything but the other gear to compare it to...what do?
Is the darkening oxidation? How dangerous if I use it?
Advice please...[ATTACH][/ATTACH]