What BAC?For what I was able to gather from Google is that they are the same at least on paper as Biologix.
I used one last night to filter my Reta. I placed it back in the fridge after filtration, and pinned 1mg later that night, I did have some slight burning, but in attributing it to the Reta being cold and not letting it come to room temperature.
I've been monitoring the pin site and there's no redness or any other thing going on so far.