What needle gauge do you use for peptides?

This site does not sell products and does not recommend a specific needle. Gauge is how thick the needle is, and the numbers run backwards: a higher gauge means a thinner needle. Insulin syringes are usually sold in the 28 to 31 gauge range, which is thin enough that thickness is rarely what makes a shot hurt. Length matters more, because it decides whether the shot stays in fat or reaches muscle. Full walkthrough at /injecting.

Full injecting guide: sites, needles, rotation, safety

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of injecting: sites, needles and safety. Subcutaneous vs intramuscular, site rotation, lipohypertrophy, needle length and gauge, vial hygiene at injection time, travel syringes, scar tissue, and when to stop and see a clinician. Full walkthrough at /injecting.