BAC water shelf life after opening?

I've had an opened vial of BAC in the fridge for a few weeks now and I'm second-guessing whether it's still good to use. I know some folks say 28 days and others stretch it longer without issues. What's the longest you've personally gone before tossing yours?

I've gone about six weeks on an opened one in the fridge without problems, but I also toss it the second anything looks off. Down 22 lbs so far and I'd rather replace early than gamble on sterility, the cost of fresh BAC is trivial compared to peace of mind.

I write the date right on the box the day I open one, which took the guesswork out for me. Longest I pushed an opened vial was around seven weeks and it stayed clear, but anything cloudy or with stuff floating in it goes straight in the trash.

I've stretched an opened vial closer to two months in the fridge with no visible issues, but I toss it if it ever looks cloudy at all. During my 67 lb loss I went through plenty of vials and the 28 day rule always felt overly cautious to me, though that's just what worked for me.

Sharpie date is a good trick, I started doing that after losing track of one once. Mine usually gets used up around the five or six week mark and I've had zero problems, but anything looks cloudy or weird and it goes straight in the trash. Fresh BAC costs so little it's not worth worrying over.

I've stretched mine a bit past a month fridge-cold and it stayed clear, no problems I could tell. If it still looks and smells normal I don't sweat a few weeks. My rule now is sharpie the date and toss it if I catch myself second-guessing, cheap enough.

Around 7 weeks was my longest before I tossed one, mostly because I finally just bought a fresh one. Down 51 lbs and never had an issue, but I'm with the others on binning it if it clouds up at all.

A few weeks in the fridge never gave me any trouble either, mine stayed clear every time. I started dating mine with a sharpie after losing track once, and at a few bucks a vial I just don't stress it anymore. Down 9 lbs mixing with the same stuff, for whatever that's worth.

I've gone past a couple months on an opened one in the fridge and it stayed clear the whole time, but I tossed it anyway once doubt set in. Since it costs next to nothing, I just replace it when I can't remember the open date anymore. Down 17 lbs using vials mixed the same way, so no complaints here.

Mine hit about five weeks in the fridge before I used the last of it, still clear as day. Like others said, cloudiness is my toss signal too. Sharpie date on the vial has saved me a lot of second-guessing.

A few weeks in the fridge is well within what I've personally used with no issues, and mine always stayed clear. That said, if it's nagging at you, a new vial is cheap peace of mind. Writing the open date on mine is what finally stopped the guessing game for me.

Six weeks was my max too, and it stayed clear the whole time. Down 14 lbs using vials I'd stretched well past the month mark with no issues. If it ever turns cloudy or gets floaty stuff in it, that's when mine goes in the trash.

I've gone past 28 days too, roughly five weeks on one in the fridge before it was empty. I date the vial with a sharpie when I open it since it's easy to lose track. Down about 20 lbs and no trouble so far, but cloudy means bin it no matter what.

Mine hit about seven weeks once before I finished it, still clear the whole way and no problems. I write the open date right on the label now too. Down 25 lbs using this routine, but honestly if it sat long enough to make you second-guess, a fresh vial is a couple bucks and kills the worry.

I've never pushed mine past a month just because I stopped trusting anything I couldn't date. Now I write the open date on the box and only keep one in rotation at a time, so a few weeks in the fridge is as far as it ever gets. At a few bucks a vial I just swap it out when I finish a peptide vial and start fresh.

Six weeks was my max on one in the fridge before I finished it off, no issues at that stretch. Now I sharpie the open date on mine too since I lost track once. If yours has been sitting a while and looks clear, I wouldn't stress, but cheap enough to just grab a new one for peace of mind.

I've gone about six weeks on an opened vial in the fridge and it looked fine the whole time. Mine only got tossed once when it started looking cloudy. Down 6 lbs myself and honestly the dating trick everyone mentions is what saved me from the same second-guessing.

I stopped stressing once I started dating mine too -- went about six weeks on my last one and it stayed perfectly clear, no weird stuff floating. Down 9 lbs along the way and never noticed a difference between fresh and older BAC. Clear and no particles is my only real test.

Mine went about seven weeks once and it was still clear when the last of it was used up. Now I date every vial when I first puncture it, mostly so I'm not guessing months later. Cloudy or floating bits and it goes in the trash no matter how new it is.

I've stretched mine to about five weeks once and it stayed clear the whole time, no issues I could tell. Now I Sharpie the open date on the vial like everyone else here. Clear and no floaters is my cutoff too.