I dunno how much I buy into the whole oxidized thing. Either youve got legit Tren or you dont. Just my two cents
If you've ever made injectable tren from Finaplix, you would know that the longer it sits, the darker it gets. It will literally change from a yellow color to a dark orange-rust color if you let it sit for an extended period of time. I could be wrong, but I was told from a chemist that this was due to oxidation, but that potency of the trenbolone molecule itself remained unaffected.
Regardless, there is no denying that it WILL change color (at least when making it from Finaplix) the longer it sits during the extraction process. Being that this occurs consistently with the same product, the differences in color cannot be attributable to variations in product quality. By all accounts, the only variable responsible for the difference in color is the amount of wait time during extraction. If you ask anyone who has used injectable tren made from Finaplix, they will all tell you that regardless of how long it sat for (thereby producing different hues), the potency was the same. I've done this countless times myself...and there has never been any discernible difference based on color.