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Subcutaneous injection
Sites, rotation, needle angle, and what ‘pinching a fold’ is actually for.
Sites
Abdomen at least 5 cm from the navel, front of thigh, or back of upper arm. Abdomen is the default for most peptides.
Rotate quadrants. Do not use a welted, bruised, or scarred spot. The log will suggest the next site.
The stick
Clean, pinch a fold of skin, insert 45–90° depending on subcutaneous thickness, inject slowly, wait a second, withdraw, and apply light pressure. Do not recap toward your hand.
Insulin syringes (29–31G, 6–13 mm) are appropriate for subq peptides. IM is a different needle and a different decision.
Peptipedia is an educational calculator, not medical advice. Many catalog entries are unapproved for human use. Approved molecules have labels that outrank this app. Do not use this to self-prescribe. Consult a licensed clinician. Not for anyone under 18, pregnant, or being treated for cancer.