It is an amino acid protein injectable and as I am nearing the end of it it has turned slightly from a colorless to a brown/yellow mix. I don't think it has to do with how I store it because I have a second one in the same place but unused that looks like water. I don't think it could be bacteria because it contains citric acid so the acid should prevent bacteria from growing. It might be the byproduct of bacteria that released a certain colour or I might have gotten some blood in there. It could also be because there is less and less of a certain amino acid in the bottle and more of a different one that turned it into that way? I know proteins are a breeding ground for bacteria. I don't wanna throw it away if it still has usable proteins in there.
Edited by kurdishfella, 26 August 2022 - 09:05 AM.