Anybody know of any sites that sell human-grade injectable B6? (If this is innapropiate, please PM me. I'm assuming asking for a source is alright since I'm not inquiring about anything black market.) I've been able to find a couple sites with animal-grade stuff, but that stuff stings quite a bit haha! I expect it to be pricey, but I'm not overly concerned with that.
I appreciate the help!