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How-to · reconstitution
Put 2 mL of bacteriostatic water into the 5 mg DSIP vial. That makes 2.50 mg/mL. A 250 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 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 | 2.50 mg/mL | 25 mcg | 10.0 units |
| 3 mL | 1.67 mg/mL | 16.67 mcg | 15.0 units |
Straight arithmetic: concentration = 5 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 vial contains twenty worked doses. Both water options land exactly on syringe lines and sit above the crowded bottom of the syringe.
Between this page’s two water volumes the draw changes by half again. Between its two vial sizes it doubles.
That makes the purchase the bigger decision and the mixing the smaller one, which is the reverse of most pages in this family. Choosing this size is what buys the legible reading.
Each listed volume gives a whole number of units here. The water choice therefore comes down to how much liquid goes under the skin, and how long the vial covers.
No published source gives a storage window for the mixed vial. Twenty is a dose count, not twenty weeks of use.
Material under this name ships for laboratory research, with no enforced standard governing vial contents. The number printed on the label is an assertion by whoever filled it.
Every figure on this page inherits that assertion. The arithmetic cannot be more reliable than the quantity it starts from.
No regulator anywhere has licensed this peptide and it appears in no pharmacopeia, so nothing independent checks what a vial holds. That is a different situation from a medicine whose contents an agency enforces.
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.