Can you inject peptides in the same spot every day?

No. Using the same small patch over and over is the biggest measured cause of fatty lumps (lipohypertrophy) in people who use insulin. A 2026 review that pooled 51 studies found that not rotating properly came with roughly nine times the odds of a lump, compared with proper rotation. The lump then soaks up the liquid more slowly and less evenly than normal skin. Rotate. This is not a dose, a frequency, or a protocol. 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.