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How-to · reconstitution
Put 2 mL of bacteriostatic water into the 10 mg DSIP vial. That makes 5.00 mg/mL. A 250 mcg dose is then 5.0 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 DSIP in the glass never changes. Only the number of marks it takes does.
DSIP stands for delta sleep-inducing peptide. It is nine amino acids long, and it was recovered in 1977 from the blood of rabbits put into deep sleep electrically.
| Water added | Concentration | Per U-100 unit | Example: 250 mcg = |
|---|---|---|---|
| 2 mL | 5.00 mg/mL | 50 mcg | 5.0 units |
| 3 mL | 3.33 mg/mL | 33.33 mcg | 7.5 units |
Straight arithmetic: concentration = 10 mg ÷ water, and 1 U-100 unit = 0.01 mL. The example column shows the math at 250 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 larger DSIP vial doubles the doses and halves the draw. At the smaller water volume that puts one dose at five units, where a single mark is a fifth of it.
Doubling the vial at the same water doubles the strength, so the same amount takes half the liquid and half the marks. The count of doses goes up and the quality of the reading goes down.
On this page that trade is unusually stark. The draws were already small on the smaller vial.
Of the two listed, one gives a whole number of units. The other leaves the plunger on a half-mark the barrel never prints.
Neither option is easy to measure: one is very small, while the other falls between syringe lines. Both exact results are shown without recommending one.
The vial divides into forty worked amounts, but no published source says how long the mixed solution keeps.
The human studies behind this peptide date from the 1980s. They put it into a vein at amounts scaled to body weight, and none of them reached an approval. The count below is arithmetic on a vial, not a course anyone has run.
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.
Open the DSIP calculator →The arithmetic on this page is only half the question. These are the pages that carry the other half.