posted Wed, 05/13/2026 - 17:20
320
Primo Injection Frequency
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For the experienced users who have done Primo. My question is how often did you pin Primo, as the majority of places only carry 100mg/ml. So when we are talking about injecting 300mg+a week for its recommended dosage, that becomes quite a bit of injections, especially when stacking it with a Test Base. Just to get 300mg a week, thats already 3 injections, on top of 2 more for the average Test E user that splits 250mg doses twice a week. I'm not one to shy away from a needle, but doing 5 injections a week seems quite overwhelming, especially doing nothing but glutes. Has anyone shot 2ml of Primo as well? How was the PIP, is it recommended even to go past 1ml?
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Jrihard89Pin MWF???
1ml Primo, and .7ml of Test every shot will get you what you want
Run your test and primo in the same syringe twice a week
So say Monday 2cc of Test and 1cc Primo and then Thursday 2cc Primo and 1cc of Test and you'll be just fine
Pin EOD, mix the test and primo together. You just gotta do the math for volume of each compound
EOD test e/c will be more stable anyway
What’s your total load? 500 of each compound?
150 mg of Primo EOD (1.5ml)- that’s 450 on 3 day weeks, and 600 on 4 day weeks, averaging 525mg weekly
Test e 250, pin 0.6 ml in the same syringe at the primo. Same total number as Primo
That’s a 1:1 ratio
That’s a total of 2.1 ml EOD
Make sense? (I think my math is correct, I’m at the gym now doing it in my head)
Even 300/wk is on the low side of primo cycle my man. The answer is lots of volume and lots of injection sites. Preferably look for a decent 200mg/ml blend. Some people complain of PIP, but even high dose primo has never been terrible for me.
Dosing frequency is preference and how you react. Personally I do more frequent (EOD or ED) with any compounds even test E. It keeps levels more stable, and allows for less volume per pin. Rotate sites frequently and you will be fine. I try to keep it below 3ML and inject 1”-1 1/2” deep in the muscle. Though with primo and 100mg/ml blends sometimes you’re stuck dealing with lots of volume. I’ve ran a gram before on 100mg/ml. I’ve also tried some low dose protocols like matching primo to my trt dose 120/120 and had no real ill effects on bloodwork.
Can't be afraid of the needle on Primo....
100% agreed brother, very well said
Less peaks and valleys usually means less sides and overall a smoother experience for me too. Same with Primo, I personally prefer EOD minimum, but during cruise phases I’ll usually just pin ED since the total amount of compounds/oil is lower anyway.
So even with longer esters I still tend to do daily pins most of the time … usually some variation of test/mast or test/primo depending on bloodwork and goals during the cruise at the moment.
Honestly I’ve only seen benefits from that approach:
steadier levels, easier management of side effects, smaller injections, less tissue irritation per shot…
Just gotta rotate sites and accept that Primo life basically turns you into a human pincushion eventually lmao