Capsules became darkened a few days after opening
I think it's a decent b-complex and very appreciative of the fact it has no fillers. I'd rather the capsule was made of gelatin though. UPDATE: Less than 2 weeks after opening the bottle the capsules have developed dark spots all over. I kept the bottle with all my other supplements, in a cupboard in a cool dark place in a fully air conditioned home, so I don't know why this would happen.