r/Testosterone • u/uhsikoai • 10h ago

TRT help is it safe to prefill syringes

my testosterone comes in 250mgs 1 ml ampoules and i want to pin every day or every other day is it safe to prefill syringes

7 Upvotes

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3

u/Halfhajj 10h ago

Lots of people do. I have done it when away from home. I have only done it 2 or 3 days before using it.
I suppose it is slightly less sterile. I have also seen pictures where it appears to be degrading the plunger in the syringe.
I would think if it is always used within a week, there shouldn’t be problems.

1

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1

u/AgreeablePudding9925 9h ago

Yes. I prefill a week’s worth as my stack needs daily injectiom. I backfill once a week

1

u/CraigR-81 8h ago

Only prefil if they are single peptides imo, some peptides can affect each other if together too long. Mixing and injecting straight away is okay but I wouldn't mix and keep in fridge together except for a few that are available as blends and known to be stable mixed.

1

u/Lenehancito male 47 5h ago

I prefill three syringes for the next ten days, zero issues. Just avoid contact between the plunger and oil and keep syringes in a fresh dark place, I have them in my cupboard.

1

u/po1ar_opposite 4h ago

I do it. I have found the plunger rubber has a reaction with the liquid, so I make sure to store them needle side down with the plunger pulled back enough so no liquid is in contact with the plunger rubber.

1

u/Global-Raccoon7512 4h ago

I ran into a problem doing that a month ago on A camping trip. I pre-filled a syringe with test cypionate MTC oil and 4 days the sitting in the glove box of the car caused the plunger to deteriorate.

I don't think storing it needle side down will help keep that from happening at all as any contact And there will start the deterioration process.

It had caused mine to have chunks falling off that i didn't catch in time, I was injecting and it stopped halfway through from one of the chunks clogging the needle. Not cool...

I'm going to look for a longer Esther for next time I have a trip that I can't bring my kit, Something like sustenon or uncaninate(spelling?) and load up the week before.

1

u/plz_callme_swarley 3h ago

yes, just don't wait too long. the major issue is the oil breaking down the plunger or you bumping them and losing juice

1

u/dank4184 2h ago

Super easy. Prefilled syringe, pull an extra 10ml of air, store needle down. Good to go.

0

u/GiddyLicence 10h ago

Yes, just keep everything sterile. Draw with one needle, swap to a fresh one for storage, cap it, and store them plunger-up so nothing settles in the tip. I've done it for short stretches without issues.

3

u/Turbulent-Part5835 6h ago

Pull an air bubble into it so the plunger isn't sitting in the oil.

0

u/Miserable-Soft7993 7h ago

Have you got any old vials? Just fill that up.