03
Needles & Syringes
What to use and why
New needle every single injection — no exceptions. A needle is sharp enough to inject painlessly exactly once. The tip of a used needle is microscopically bent and blunted — it tears tissue on re-entry instead of piercing it cleanly. That tearing causes unnecessary pain, bruising, and cumulative scar tissue. A box of 100 insulin syringes costs £5–8. There is no financial argument for reusing needles. There is no safety argument for reusing needles. There is no argument.
SubQ Peptide Injection
29–31G · 8mm
Insulin syringe — 1ml capacity, 100 unit scale. The standard for SubQ peptide injection. Fine gauge minimises pain. Short length appropriate for subcutaneous fat depth. This is what almost everyone uses for daily peptide injections.
Reconstitution (Drawing up BAC water)
23–25G · 16mm
Larger gauge for drawing up bacteriostatic water from the BAC vial. Thicker needle makes drawing up faster. You do not inject with this needle — it is only for transferring water from the BAC vial into your peptide vial during reconstitution.
IM Injection
25–27G · 25mm
For intramuscular injection — longer needle required to reach muscle tissue through subcutaneous fat. Gauge varies by compound viscosity. Cerebrolysin and similar preparations may require 25G. Most peptides in aqueous solution work well at 27G.
Sharps Disposal
Used needles must be disposed of in an approved sharps container — never in general household waste. In the UK, sharps containers are available free from many pharmacies. When full, contact your local council for collection — this is a free service in most areas. Never recap a used needle by inserting the cap with two hands — always use the one-handed scoop technique to avoid needle-stick injury.