This is a tracking tool,
not a protocol
It records what you are already doing so you can see patterns and hand something useful to your doctor. It contains no doses, no schedules and no recommendations to use anything.
- I am 21 or older.
- I understand several compounds referenced here are prescription-only medicines, and some are not approved for human use at all.
- I understand this is general information, not medical advice, and that Coach Roshan is not prescribing anything to me.
- I will discuss anything I am taking with a doctor.
Peptide OS
A baseline you never took is a comparison you can never make. Log a bloodwork panel before you change anything, then again 8–12 weeks later. That one habit tells you more than any forum thread will.
A record in your own words. No amounts are suggested and none are required.
Sleep and mood shift before bloodwork does. Worth catching early.
Rotation prevents scar tissue and lipohypertrophy, which quietly change how anything absorbs. Tap a site to log it; the deepest colour is the most used.
No doses, deliberately. What each is, how good the evidence actually is, what it can do to you, and what to measure.
Two compounds side by side. Useful when the marketing for both sounds identical and the evidence behind them is not.
Arithmetic on numbers you supply. It suggests nothing and has no presets — you say what is in the vial, how much diluent you added, and how much you intend to draw.
Variable Syringe Fluid Line Visualizer
Target: 10 Units (0.10 mL)How the Math Works
Every output derives from four identities of dilution arithmetic. Nothing here is peptide-specific—the same math applies to any mass dissolved in any solvent.
• Draw Volume per Dose (mL) = Target Amount (mcg) ÷ Concentration (mcg/mL)
• Syringe Units = Draw Volume (mL) × Syringe Scale Factor (100 for U-100; 40 for U-40)
• Doses per Vial = Vial Mass (mcg) ÷ Target Amount (mcg)
"Target syringe units" mode runs the same identities in reverse, solving the diluent volume that makes one dose land on a chosen syringe marking: Diluent (mL) = [Vial Mass (mcg) × Target Draw (mL)] ÷ Target Amount (mcg).
A 5 mg vial reconstituted with 2 mL of bacteriostatic water yields a concentration of 5,000 mcg ÷ 2 mL = 2,500 mcg/mL. For a target amount of 250 mcg, the draw volume is 250 ÷ 2,500 = 0.1 mL. On a standard U-100 syringe (100 units/mL), this is 10 units. On a U-40 syringe (40 units/mL), 0.1 mL × 40 = 4 units, and the vial contains 20 doses.
Frequently Asked Questions
How do you calculate peptide concentration after reconstitution?
Concentration is vial mass divided by diluent volume. A 5 mg vial reconstituted with 2 mL of bacteriostatic water gives 2.5 mg/mL, or 2,500 mcg/mL. The arithmetic assumes the labeled mass is entirely peptide; vial contents also include water and counterions, so exact quantitative work applies a net peptide content correction from the batch certificate of analysis.
What are 'units' on an insulin syringe, and how do U-100 and U-40 syringes differ?
Units indicate the volume scale based on concentration standards. Standard U-100 syringes contain 100 units per 1 mL (1 unit = 0.01 mL or 10 µL). U-40 syringes contain 40 units per 1 mL (1 unit = 0.025 mL or 25 µL). A 0.1 mL draw corresponds to 10 units on a U-100 syringe, but 4 units on a U-40 syringe. The calculator automatically adjusts calculations according to the chosen syringe standard.
How much bacteriostatic water should be added to a vial?
There is no single correct volume—it is chosen so the resulting draw per dose is practical to measure. Draws under about 5 units are difficult to read accurately, while volumes above ~3 mL exceed a standard research vial. The calculator's 'Target syringe units' mode solves the diluent volume directly: enter the vial mass, the target amount per dose, and the desired draw size, and it returns the water volume to add.
Is this calculator medical or dosing advice?
No. It performs concentration arithmetic for laboratory research solutions and nothing else. It does not recommend amounts, routes, or schedules, and it is not guidance for human or veterinary use. All outputs should be verified independently before use in any experimental protocol.
Only used to label the export. Stored on this device, never sent anywhere.
A plain summary of everything logged. Print it, or copy it into an email. Far more useful than trying to remember it in a ten-minute appointment.
General information only, not medical advice, and not a recommendation to use any compound named here. Several are prescription-only medicines; several are not approved for human use. Nothing here is a reason to start, stop or change a prescribed medicine — that decision belongs to your doctor.