I’m writing this dilution guide mostly for women who inject UGL oils whose concentrations are mostly intended for men (whether that’s for TRT or general AAS use). 100mg/mL vials aren’t always available, or our dosages can be less than even 50mg/wk. During my first primo cycle (which was my first oil cycle), I was using a vial of primo200 and injecting roughly 34mg/wk (15 units). At such a low dose, I realized I was losing a lot of oil in the syringe and needle. I also realized that one vial would literally last me for five, 3-month cycles. That’s roughly 2.5 years PER VIAL. For that entire time, I would be sticking that same vial with a 25ga needle, hoping the stopper wouldn’t give out and that the coring particles would be larger than the needle with which I was drawing the oil. I looked in MESO for a dilution guide for women and didn’t find anything concrete. This process is what I was able to piece together over time by going through the brewing thread and paying attention to Ghoul’s filtration Crusade (yaaaaaaay harm reduction). Thanks to all of you who’ve contributed without even knowing I was cyber stalking you for your knowledge. If you have any suggestions, please share.
Materials Needed:
- Alcohol pads
- 5 sterile 5mL depyrogenated glass vials (clear glass or amber)
- Sterile 18 gauge needles and 30 gauge vent needles
- Sterile 1-10mL leur lock syringes and a 1mL insulin syringe/needle
- USP grade injection oil (I used MCT)
- Benzyl Alcohol (1% of the oil volume)
- Sterile 0.22um PTFE hydrophobic syringe filter (I used 25mm)
- Gloves (did not use but don’t be like me)
First, calculate your ratios:
For an example, I’m going to use the vial of primo200 I diluted, which tested at 225mg/ml. Let’s assume the vial is 10mL for easier math (though make sure you confirm the actual volume when you draw it into a 10mL syringe. From there, let’s say your dose is 50mg/wk and you want to draw 0.5mL when you inject. Your desired concentration would then be 100mg/mL.
- 225mg/(100mg/mL) = 2.25mL, so you’ll need 1.25mL of your carrier oil for every 1mL of the finished oil.
- If we have 10mL finished oil, we need to add 12.5mL sterile carrier oil.
- The amount of BA needed is 1% carrier oil volume, or 0.125mL.
Second, determine how many vials you want for your new concentration and the calculations per vial:
I personally like to put the equivalent of one cycle per vial to minimize coring as much as possible, which for me was 2mL of original primo200 vial per cycle. Using our example, that would be 5 5mL vials. Note that the actual volume of the vial is significantly greater, so there’s wiggle room (I think my MedLab 5mL vials were closer to 7mL). If we divide the original oil into 5 vials, our calculations per vial will be:
- 1.25mL x 2 = 2.5mL carrier oil
- 2ml original primo
- 0.025mL BA (2.5 units)
Third, draw and filter the primo into the sterile vial:
- Wipe down and sterilize your work area and all respective vials. Put on gloves (unless you’re me and forget).
- Warm up your oil vial either in the oven or candle warmer (unless you’re me and also forget, but don’t cause booooy you’ll regret it).
- Draw the contents of the primo into a 10ml syringe. Detach the needle and attach your filter to the syringe, then a brand new needle to the filter.
- Put a small vent needle in each sterile vial or you will regret it. It doesn’t need to be larger than a 30ga.
- Inject 2mL primo into the first vial (yes, the filter eats about 0.7mL primo, but stay with me).
- Inject 2mL of primo in the remaining 4 vials.
- Inject the needle/filter combo once more into your first vial and detach the syringe. Your filter at this point still has about 0.7mL primo, while the first vial in which the needle is in has about 1.3mL. You will next push your carrier oil through the filter.
Fourth, add carrier oil:
The MCT oil didn’t go through the filter easily in my large syringe, so I switched to 1mL syringes and that sped up the process. I also didn’t feel like it would be a great idea to warm up the whole bottle of MCT, but maybe I could have. I’ll play around with it next time. I would therefore recommend just using 1mL syringes.
- Draw MCT oil into a 1mL syringe, detach syringe while leaving the needle in the stopper, attach syringe to the first vial needle/filter combo, and push the oil through. Repeat for all 2.5mL of carrier oil.
- This first vial will now have 2mL primo, and probably close to 1.8mL carrier oil. We’re going to do the same thing as we did for the primo and move on to the other vials for the time being.
- Filter 2.5mL of MCT into the remaining 4 vials.
- Go back to vial #1. You can either now push air through the filter until you get most of the oil out by detaching the syringe, pulling the plunger all the way up, reattaching the syringe, and pushing air through it, or you can line up your vials next to each other and add more MCT into vial #1 until the volume in both vials matches. The second method is probably more accurate because you will never get all the oil out of the filter.
Fifth, add BA:
Draw 12.5 units of BA into an insulin syringe and inject each vial with 2.5 units of BA. Remove vent needles and gently swirl each vial to mix the solution.
Closing Notes:
- Instead of using 1 0.22um 25mm PTFE filter, you can use 5 13mm filters for each vial to filter in 2ml primo and 2.5mL carrier oil.
- To prevent coring, I plan to use vial spikes in each vial (another reason I want each vial to last one cycle). The US dom vial spikes are a bit large and don’t have the 5um filter that Altruan has, but you don’t have to pay $27 in shipping from Germany. The only stateside vial spike I’ve found is the McKesson Vial Spike.
Materials Links:
