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I know "28 days in the fridge once reconstituted" is the standard (and

Started by B J 10 replies 5 people Last activity Apr 17, 2026

OP
Mar 9, 2026 #1
I know "28 days in the fridge once reconstituted" is the standard (and for good reason), but has anyone tried reta/tirz for 6-8 weeks with the same results?
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Mar 12, 2026 #2
Yes and it's been fine, bit this is not advice
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Mar 19, 2026 #4
Yes it usually fine most peptides are a lot more stable than people think. Is it ideal no. Will it still work most likely.
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Mar 22, 2026 #5
Thanks, I know a lot of people have and will use it after 28 days. I haven't had any issues with a few other pins (PT141 is still potent after 6 weeks!), but it's good to get your input too.
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Mar 25, 2026 #6
Yip the peptide is actually not the issue, it's the risk of bacterial growth. Even after 6months the peptide will be fine maybe less effect or some efficacy lost but will work. it's the risk of other stuff going on in the vial
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Mar 31, 2026 #7
That makes sense; I keep 'em clean and put my faith in Hospira when I need to!
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Apr 3, 2026 #8
There’s story’s of older bodybuilders using tap water for their gh. 😂
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Apr 4, 2026 #9
I can totally see the risks, and since I'm in London, I'm definitely not using the tap water!!
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Apr 17, 2026 #11
Most likely there’s also other impurities in water non bacteria related that are most likely not great for you. It’s just funny to see how people swing from one extreme to another. Ie dirty needles, normal water, no alcohol wipes->full sanitation and pharma bac water 😂
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