I have a two-month-old peptide vial from a telehealth compounder that looks fine and has never been used. I want to add some BAC water to bring the concentration down to one-to-one. Is there any danger in doing that? I get that it is already two months old but that part does not worry me. I just want to know if I can dilute it when I am ready to use it.
Vial with 10 ML. Can I add new BAC to dilute.
Summary
Can I add more BAC water to dilute an older compounded peptide vial for easier dosing?
The original poster wants to dilute a two-month-old vial from 2:1 to 1:1 concentration by adding BAC water for simpler dosing and possible stability. Most replies advise against it, citing contamination risk from opening the vial again and noting the concentration is already fine. Participants recommend using small syringes for precise small doses instead, keeping the vial refrigerated, and inspecting it before each use. The vial is viewed as usable for months if handled carefully but not worth extra manipulation.
What this discussion establishes- Diluting an already-reconstituted vial increases contamination chances
- Current 20 mg/ml strength works fine for small doses like 2 mg
- Smaller syringes (0.3 or 0.5 ml) make measuring 0.1 ml easier without dilution
- Refrigeration and clean needle technique extend usability
- Adding fresh BAC is unnecessary and not recommended by most
- One view suggests extra BAC could add bacterial resistance but is outweighed by risks
Whether adding fresh BAC water would meaningfully improve stability or resistance versus simply risking contamination
Still openExact remaining shelf life of this specific unrefrigerated or refrigerated vial and whether six-month use is truly safe
Nothing here is advice.
26 replies · 6 people
It does not seem like a problem but I am not qualified to give advice and there might be something I do not know about. Why not just change the dose instead of diluting since these can be measured quite small?
↳ replying to @PlainAlder11
Yeah are you sure it is 10 ml?
I might have explained it wrong. I want to inject one milligram per unit. Right now the bottle is two milligrams per unit. I figured adding a bit more BAC might help keep it stable. Or am I just overthinking it. I will go with overthinking it.
I am still not following. Can you take a picture of the vial?
You are not being dumb but I am really confused. Are you saying it is ten milligrams in one milliliter of BAC and you want to add another milliliter? What does the label on the vial actually say?
Here is the picture. Sorry about the confusion earlier.
Twenty milligrams per milliliter is okay. What worries me more is how long you will be using that sixty-milligram vial if you are only taking two milligrams each time. I would not dilute it because I do not see the point and every time you open the vial you risk contaminating it.
↳ replying to @AmberCompass48
Here is the picture. Sorry about the confusion. That is what I was thinking. As someone new to this I figured a little fresh BAC might add some stability. But you are right, less messing with it is better for these.
A lot of people started with compounders. Someone who did not know better sent me to one. I know some folks who say a single vial can be used for up to six months if you take good care of it. Still, tossing it would be okay too. I just do not like wasting it if it can still be used safely. Thanks for the help and info.
↳ replying to @WarmAnchor46
What is that mixture exactly? I would personally throw it out. How many vials do you have?
↳ replying to @PlainAlder11
Just the one vial. I do not even need it. I am embarrassed to say what I paid for it.
↳ replying to @WarmAnchor46
You might want to get point-five milliliter syringes so the zero-point-one milliliter mark is easier to see. I use the small ones for another peptide.
I understand wanting simpler math but you could just figure it out once and write the number down. Or does your dose change a lot? I would calculate it for each dose and note it on a sticker on the vial.
↳ replying to @NorthWillow72
Or the point-three milliliter ones.
↳ replying to @NorthWillow72
I'm hoping to stretch what's left in this container over several more weeks. It crossed my mind that putting in some new bacteriostatic liquid might keep the peptide stable longer. The needle approach sounds really useful. Appreciate the tip. Still picking up new tricks.
↳ replying to @WarmAnchor46
Just use it. I liked that compounder too and also spent a lot on compounded versions at one point. It is like paying to learn.
↳ replying to @AmberCompass48
It really is. But after learning about other options we all feel taken advantage of. The prices were outrageous.
The picture of the U-100 syringe is right for twenty milligrams of peptide in one milliliter of solution. For a two-milligram dose you would draw zero-point-one milliliters or ten units. Yes you could add one milliliter of BAC and then draw twenty units for the same dose. Adding fresh BAC would increase resistance to bacteria. At two milligrams you would get ten doses or a ten-week supply which means the vial would be over four months old by the end. Your one-to-one goal is fine but not the usual target. Makers usually specify how much BAC to use. Many people draw ten or twenty units and have no issues. I always use forty to fifty units to avoid skin reactions. Where was the vial kept? Room temperature? The compounder said three weeks max at room temperature. Refrigerated then six months.
↳ replying to @NorthCinder83
My peptides got better treatment than my kids did. They have been stored very carefully. I am watching it closely. It is no big deal if it ends up in the trash. I just wanted to get a few more doses out of it before tossing it.
↳ replying to @WarmAnchor46
I am using thirty-one gauge. They draw slower so it takes an extra minute to fill the syringe. Only push through the stopper once. If you have trouble filling and need to go back in again, throw that needle away and start over because it dulls it. Make sure to return any extra solution to the vial. You barely feel them.
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