Put 1 mL of bacteriostatic water into the 2 mg PEG-MGF vial. That makes 2.00 mg/mL. A 200 mcg dose is then 10.0 units on a U-100 syringe.
That volume is the one that lands the draw on a syringe line, so the reading can be checked by eye. More water makes a weaker mix and a bigger draw. Less water makes a stronger mix and a smaller one. The amount of PEG-MGF in the glass never changes. Only the number of marks it takes does.
What matters first
Water to add
1 mL
Resulting strength
2.00 mg/mL
Example 200 mcg dose
10.0 U-100 units
What is PEG-MGF?
PEG-MGF is a short piece of a growth factor your muscle makes for itself after hard exercise. A polyethylene glycol chain is attached to it, to slow down how fast it clears.
No completed controlled human trial has shown which dose works for PEG-MGF. The range people report using is not a study result, tested schedule or recommendation.
no human dose shown to work
Medically reviewed by Jennifer Montecillo, MD · non-practicing medical reviewer·Reviewed 2026-08-12·open the primary sources
How much bacteriostatic water for a 2 mg PEG-MGF vial?
◆ Unique to the 2 mg vialU-100 example draws
Water added
Concentration
Per U-100 unit
Example: 200 mcg =
1 mL
2.00 mg/mL
20 mcg
10.0 units
2 mL
1.00 mg/mL
10 mcg
20.0 units
3 mL
0.67 mg/mL
6.67 mcg
30.0 units
Straight arithmetic: concentration = 2 mg ÷ water, and 1 U-100 unit = 0.01 mL. The example column shows the math at 200 mcg; it is not a dose recommendation.
Which volume to use is a practical choice rather than a dose. Pick the one that puts your draw somewhere you can actually read it on the syringe. The flags in the last column mark where that fails. “Hard to measure” means the draw is too small to judge by eye. “Won’t fit” means it is bigger than one U-100 syringe holds.
The 2 mg vial at 1 mL on a U-100 barrel. 200 mcg fills to 10.0 units, at 2.00 mg/mL.
How many units is a documented dose from this vial?
The table above uses one worked example. These are the published quantities, converted into marks on a U-100 barrel at each water volume for a 2 mg vial. Where a quantity was never studied by injection, the row says so.
200–400 mcg — reported, not studied
200–400 mcg two or three times a week after training, by injection under the skin or into muscle. The same review prints the same quantity again as a daily amount, calls the protocols it collects internally inconsistent, and notes that the only work ever done on this peptide put a fragment carrying no polyethylene glycol onto cultured cells and into mice.
Water added
Concentration
Draw, low to high
1 mL
2.00 mg/mL
10.0 to 20.0 units
2 mL
1.00 mg/mL
20.0 to 40.0 units
3 mL
0.67 mg/mL
30.0 to 60.0 units
indirect evidenceDominikowski A, Rękoś Z, Olejarz M, Szczepanek-Parulska E, Domin R, Ruchała M. The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration. Front Endocrinol 2026 — tabulates self-reported online dosing patterns beside the clinical doses, stating the reported values must not be read as clinically validated, regulatory-approved or safe · retrieved 2026-08-12
One strength, three volumes, and a number nobody measured
Every seller sampled fills this peptide at a single strength, so there is one page here and one set of sums. All three listed water volumes land the draw on a syringe line. That leaves the mixing choice unusually free. It also puts the weight of the page on where the amount being converted came from.
3Read the full vial record — 3 notes
The vial divides evenly, and that is the whole of the good news
The vial contains ten worked doses. The three water options produce whole-number readings that fit within a U-100 syringe.
So there is no measurement problem to solve here. Which volume you pick changes how much liquid goes under the skin. It also changes how long the mixed vial covers. It changes nothing about how confidently the number can be read.
The amount being converted is a convention that disagrees with itself
The figure this table works from is not a studied dose. It is what circulates, written down in a peer-reviewed survey of self-administration. That survey prints the same quantity twice in one entry. It appears once as something taken a few times a week, and again as a daily amount.
A protocol that cannot settle how often it is meant to happen is not a schedule. The sums below are precise about a number. Its own source calls the material that number was gathered from internally inconsistent.
The molecule in the research is not the molecule in the vial
The only experiment ever run on this peptide itself used a short fragment of it. That work was done on cultured cells and in mice. The fragment carried none of the chemical chain this product is named for. Attaching one changes how long a molecule survives and where it ends up.
Human work on the parent does exist. It biopsies muscle to measure what the body transcribes on its own. Nobody was injected with anything. This page converts a mass into a draw faithfully. What that mass is a mass of has never been put into a person.
How do you mix it, step by step?
Wipe both stoppers with an alcohol swab and let them dry.
Draw up the water volume you picked from the table.
Let the water run slowly down the inside wall of the PEG-MGF vial, rather than jetting it onto the powder.
Swirl gently until it dissolves. Shaking damages peptides.
Store it as the dispensing label directs. What happens after mixing differs by product — some labels direct against refrigerating the mixed solution at all.
What if your water volume is not on the table?
The table shows the offered water volumes. The calculator does the same arithmetic for any volume and any syringe, and shows its working line by line.
