if you only for the one vial, save it and get more before using it.

Rule #1, brother … NEVER base your cycle math on mL/cc. Always calculate in mg, because concentration per mL varies by lab/brand. In your case, that SynP Primo is 100mg/mL … so if you’re aiming for 300mg/week (100mg M/W/F), you’ll need 1mL/cc each injection, not 4. That’s just 3mL/cc total per week.

Rule #2 … don’t skip school
This is basic rule of three, my man.

You’re good … enjoy the run and the process!

Save that bottle and grab a few more I’ve ran primo as low as 300 mg a week and as high as 800mg a week , sweet spot was around 600mg a week. Always run along with test base never alone . Keep an eye on estrogen levels. And the dose on the bottle means 100 mg per cc or ml.

Your math is way off and you need to remove the lab name in open form. Don’t waste your time running a single 10 ml vial of primo. You will be out before it fully stabilizes. Also, what are you planning to run alongside it? Have you ever used AAS before? Not trying to be condescending, but your question and lack of detail indicate a lack of experience.

In my opinion that’s on the lower end.

Make sure you run test with it. Primo shines week 3 and 4 until you finish. By the time you really start to see the benefits the bottle will be empty if you pin 1ml 3x week. 10ml will will last you 3 weeks plus 1 pin week 4. I would save the bottle until you have 12-16 weeks worth so you can run a full cycle and reap the lean gains.

Nah 1ml= 100mg of primo
Did you mean 100mgs or 300mgs per week?

4ml each day would be 400mg each one of those days for total of 1200mg week

Since it’s 100 mg/mL, a 100 mg injection = 1 mL per shot.

M-W-F plan = 1 mL each injection → 3 mL per week
Over 3 weeks and 1 extra dose, you’d use up the full 10 mL bottle (3.3 weeks of dosing)