It's been my experience that Tren Ace oxidizes very quickly. For Example, I have brewed up some Tren that came out a beautiful golden color just like the one bottle you had. And then I didn't brew the rest of that powder for a few years down the road. And even though I vacuum sealed the raws, placed them in mason jars, and stored them in the basement with packets to absorb the moisture just in case, when I went to brew the other part of those same powders, the whole look of the powders had changed to almost a rust like color. And once brewed it looked exactly like your second bottle. It was totally fine. I couldn't tell the difference from one bottle to the next. So from supplier to supplier there could be a few different factors at play. Is it because the raws of one sponsor could be a little older and had oxidized? Or was there just a difference in the manufacturing process? Who knows. I would say as long as you filtered and bottled correctly then pin it and give it a go. My bet is you won't see much of a difference. One thing I did notice when I was pinning the darker amber colored Tren was that I seemed to get the damned Tren cough way more than the golden colored. And these were the same powder from the same sponsor. One part of it had just oxidized more. So could maybe the oxidization from the darker powder have caused me to experience this? Who the Hell knows. Just some things I have noticed. But then again maybe I'm just a nutcase from all the damn Tren.