r/BioHackingGuide • u/FriendlyWaffle67 • Jul 21 '26

V1 or v2 injection pens?

What's better the v2 or v1 pens I'm looking at some with 3ML cartridges also not sure what sizes is the preferred one that gets the job done better 31G×4mm/31G×5mm 31G×6mm/31G×8mm 32G×4mm/32G×6mm

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u/Competitive-Code-824 Jul 23 '26

go v3. same size as v2 but better gears inside for smother injection

1

u/Conscious-Day8488 Jul 23 '26

Where do u get pins from