A month of sermorelin typically costs $185. That is the median across 137 sellers that publish a monthly price. That figure is the plan. It says nothing about the water you mix it with.
Some injectable peptides ship as a dry powder. The powder needs a liquid before it can be drawn into a syringe. When that liquid is bacteriostatic water, its own label sets rules. This page covers what it is, what its label allows, and where its cost hides.
What bacteriostatic water is
It is sterile water for injection with a preservative added [1]. The preservative is benzyl alcohol. The label lists two strengths. One is 0.9%, or 9 mg per mL. The other is 1.1%, or 11 mg per mL [1].
The benzyl alcohol is the point. It lets the vial take repeated needle withdrawals. The label calls it a multiple-dose container for exactly that reason [1].
The label does not describe it as a treatment. It is “indicated only for diluting or dissolving drugs” for intravenous, intramuscular or subcutaneous injection [1]. It is also marked “Rx only” [1].
What the label says it is not for
| Use | What the label states |
|---|---|
| Newborns | Must not be used, due to benzyl alcohol toxicity |
| Fluid replacement | Should not be used |
| Epidural or spinal anesthesia | Should not be used |
| IV injection on its own | May cause hemolysis without a solute |
| Storing a mixed drug | Not unless the drug's maker directs it |
How much water goes in a vial
There is no single answer, and the label says so. The volume depends on the concentration, dose and route the drug's maker recommends [1].
For a compounded peptide, that instruction comes from the pharmacy that filled it. It belongs on the vial label or the pharmacy's insert. If it is missing, ask the pharmacy before you mix.
The arithmetic is simple. Concentration is the powder's milligrams divided by the milliliters added. Double the water and each milliliter holds half as much drug. The guide to peptide needles and syringes explains how that volume reads on a syringe barrel.
The 28-day clock on an opened vial
CDC's rule for clinicians is plain. Date it when the needle first goes in. Discard it within 28 days, unless the manufacturer sets a different date [2]. The date may never run past the printed expiration [2].
Manufacturers do set their own dates. Zepbound, a brand of tirzepatide, comes in a multi-dose vial. Its label says to discard it 30 days after first use, or after four weekly doses [4]. The label on the vial in your hand wins.
Unopened bacteriostatic water stores at 20 to 25°C, which is ordinary room temperature [1]. The peptide it is mixed into usually has stricter rules. Those are in how to store peptides.
Who pays for the supplies
This site records each seller's monthly plan price. It holds no prices for diluent, syringes or swabs. So no supply figure appears here.
The plan figures are real, though. A month of NAD+ typically costs $191.25 across 161 sellers. The range runs from $60 to $349, read through September 2026.
Sermorelin plans run from $99 to $349 a month. None of those figures says whether water and syringes are in the box.
Brand labels show that supplies are often left out. The Zepbound vial instructions say the needle and syringe are not included [4]. The Vyleesi carton leaves out alcohol wipes, gauze and bandages [3].
A compounded plan may bundle supplies, or it may not. Two plans with the same headline can cost different amounts once supplies are counted. Compare them on the same basis.
One question settles it before you pay. Does the monthly price include the diluent, the syringes and a sharps container? Get the answer in writing. Then compare the plans on the price boards.
Products labeled for research are a separate matter. See what research use only means before buying anything labeled that way.