Stacking peps in one vial?

PureTale

Active member
I usually mix peptides in the same syringe right before pinning, but I was wondering if I could premix them in a single vial to save time and space. I've heard that mixing different peptides in one vial can cause weird reactions, even if they're pH compatible. Sounds like broscience, but I'm not sure. What do you guys think?

If I were to do this, here's the math, let me know if I screwed up. My GLOW is 75mg a vial, and it has more GHK than other ingredients. If I add 3.6ml of BAC, it should yield 2.1mg per 10 IU. Selank and Semax are both around 11mg per vial, so using 3.2ml BAC should give me like 0.34mg per 10 IU for each. So, a dose would be 30 IU of 2.1mg GLOW and 0.34mg each of Selank and Semax.

Recon: Use 3.1ml of BAC for the three vials, combine them, then filter into a fresh 10ml vial. Then, add and filter another 1.1ml (or 1.3ml to account for filter loss) of BAC into the 10ml vial.

Thoughts?
 
I personally wouldn't risk that. Peptides have different amino acid sequences with various charges. Mixing them all together might cause clumping and misfolding, which could degrade the peptides. GLOW was created to have a synergistic effect. Adding Semax and Selank to GLOW might mess with the amino acids and cause unexpected immune responses or other problems.

Just be careful and don't even mix them in the same syringe.
 
Seriously, keep some allergy meds handy! The individual immune reaction risks of each peptide you mentioned, *before* mixing, are already kinda high (BPC-157 being an exception):

another forum

I'm finally switching to prefilled pens, way easier than syringes and vials, just ordered everything.
 
My husband’s clinic offers compounded peptides. The pharmacy will combine semax and selank into a single vial per the patient's prescription. I'm not sure if it's a nasal spray or injection, but his patients seem to enjoy it. However, I wouldn't mix it with GLOW.
 
I prefer to use separate vials, do separate injections, and do them at separate times...even if that means multiple injections each day.

GHK-Cu is known to degrade other actives mixed with it. You also might have pH instability issues between the molecules. And you're flooding the body's signaling pathways, which dilutes the effect of each. Sadly, chemistry doesn't care about convenience.
 
Five-milligram vial with units depending on reconstitution. Check the calculator posts floating around the forum.
 
Thanks for the advice! I appreciate it!

I thought I could be some kind of mad scientist creating my own concoction.

I guess it's better to be safe than sorry. I'll probably just get a pen or two.
 
BurnBoss said:
@Lee_32 Easiest way is to add water equal to the drug amount. So for a 5mg vial, use 5mL of BAC water. That's what I always do.
Just be careful with that advice, especially with small doses. It can be tough to draw super small amounts accurately on a regular syringe. Sometimes diluting it more is better for accuracy.
 
Don't put multiple shots in the same exact spot. Even small doses stacked together cause inflammation, nodules, and reduced effectiveness. If you're doing 3-4 shots, try different locations or space them an inch apart within the region. Alternating injection sites reduces scar buildup and keeps your absorption more steady.
 
Avoid stacking multiple doses into one identical site, since even small amounts can create irritation, bumps, and weak absorption. For 3-4 separate injections, rotate to different areas or at minimum space them roughly an inch or so apart in the general region. Switching up where you inject protects against scar tissue buildup and ensures better uptake.
 
Not 100% sure, but from what I've tracked, GHK-Cu does seem to have a shorter window. That's part of why I keep it separate from longer-lasting peps.
 
Premixing in a single vial is possible but stability compatibility is the question. Different peptides have different pH requirements. Mixing in the syringe right before pinning is the safer default unless the combination is confirmed stable.
 
Premixing in a vial adds stability risk that per-injection mixing avoids - the pH and concentration interaction over days matters for peptide integrity in ways that aren't visible in the solution.
 
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