5 questions about reconstitution & dosing.
Most people add 2 ml to a 5 mg vial. That gives you 2.5 mg per ml, which means 250 mcg every time you draw 10 units on an insulin syringe. Nice round numbers, easy math. For a 10 mg vial, 2 ml gives you 5 mg per ml. More water = easier to measure small doses but more liquid per shot. Less water = more concentrated but harder to measure precisely. If you don't want to do any of this math yourself, use our reconstitution calculator — plug in your vial size and your dose, it tells you exactly how many units to draw.
Here's the only math you need: 100 units on an insulin syringe = 1 ml. So if you know your concentration, you can figure out any dose. Example: 5 mg peptide + 2 ml BAC water = 2.5 mg/ml. You draw 10 units (0.1 ml). That's 0.1 × 2.5 mg = 0.25 mg = 250 mcg. The formula is: (units drawn ÷ 100) × concentration in mg/ml × 1000 = mcg. Or just use the calculator and skip the algebra — it exists for a reason.
BAC water has a preservative in it (0.9% benzyl alcohol) that stops bacteria from growing. Sterile water doesn't. If you're using a vial more than once (you are), you need BAC water. Sterile water in a multi-dose vial is basically an invitation for contamination within 48 hours. BAC water keeps your reconstituted peptide safe for about 28 days in the fridge. Sterile water is only for single-use situations where you're using the entire vial in one go.
No. Don't blast the powder — aim the water against the glass wall and let it trickle down. Direct force can damage the peptide's structure and kill potency. Once the water's in, don't shake it. Gently swirl or just put it in the fridge for 10-15 minutes and let the powder dissolve on its own. It will. If it hasn't dissolved after 30 minutes of gentle swirling, something's wrong with the peptide.
Yes. Plug in your vial size (mg), how much BAC water you added (ml), and your target dose (mcg). It tells you exactly how many units to draw on your syringe. Works in reverse too — enter the units you drew and it'll tell you the mcg. Bookmark it. You'll use it every single time.
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