CommunityInjection Technique

Newbie needing needle help

7 replies6 peopleOct 1, 2025☆ Follow
Summary

Can the same needle be reused for drawing bac water, reconstituting peptides, and then injecting into skin?

The thread agrees one needle works fine to draw bac water and add it to the peptide vial after wiping tops with alcohol. A fresh needle is required for the actual injection because the first one will be dull. Different users prefer various gauges for each step and stress separate alcohol wipes for vials versus skin.

What this discussion establishesWhere people disagree

Whether one alcohol wipe can be reused across multiple surfaces or if a new one is required each time

Nothing here is advice.

7 replies · 6 people
GreyWillow96archiveopening postOct 1, 2025

Can I use one needle to draw from the bac water vial and then add it to the peptide vial? For the actual shot into skin, do I switch needles or reuse the one from reconstitution?

WrySparrow78archiveOct 1, 2025
↳ replying to @GreyWillow96 (opening post)

Using the same needle to pull bac water and add it to the peptide vial is fine, just wipe both tops first. Reusing that needle to draw the mix and then inject will leave it dull though, so grab a fresh syringe for pinning yourself. Clean the peptide vial before using the wipe on your skin too.

SharpCinder28archiveOct 1, 2025
↳ replying to @WrySparrow78

Agreed, though I always grab a fresh alcohol wipe for each thing.

NorthKettle51archiveOct 1, 2025
↳ replying to @WrySparrow78

I usually go with 20-28g needles that are three-quarters to one-and-a-half inches long for reconstitution, but I like a 32g 8mm for the actual injection and would never use anything bigger than 30g for pinning.

GreyWillow96archiveOct 2, 2025
↳ replying to @WrySparrow78

Yeah that matches what I figured, thanks. And don't worry, I already know to clean the vial tops the right way.

NorthAnchor41archiveOct 2, 2025
↳ replying to @WrySparrow78

How about doing sixteen injections around the eyelids with the same 31g needle? At least a dull one in the stomach doesn't make my toes curl.

BrightBeacon35archiveOct 2, 2025

I haven't run into trouble using the thirty one gauge eight millimeter size when injecting. For mixing things up though the twenty three gauge three milliliter version works better for me. I get them in packs of one hundred.

WrySparrow78archiveOct 2, 2025
↳ replying to @NorthAnchor41

Yeah that comes across as fitting payback for those massive violations of human dignity.

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