Clean the injection site with an alcohol prep pad, pinch a fold of skin, insert the needle at a 45-90 degree angle (depending on body fat levels), inject slowly over 3-5 seconds, and dispose of used syringes immediately in a sharps container
Universal reconstitution principles Regardless of which peptide you are working with, these principles remain constant: Use bacteriostatic water for multi-dose vials Add water slowly down the vial wall Never shake, always swirl Refrigerate immediately after reconstitution Use within 2-4 weeks Label everything The peptide reconstitution calculator on SeekPeptides works for any peptide, not just retatrutide
This sterile, nonpyrogenic solution contains 0.9% benzyl alcohol , helping inhibit bacterial growth and maintain sample integrity during use

Best injection sites Primary sites (easiest): Abdomen (2+ inches from belly button) Front/outer thighs Upper arms (back of arm, harder to self-inject) Love handles (sides of waist) For targeted effects: Face/neck aging: Inject near face (deltoid, upper arm) Hair loss: Scalp injections or systemic Wound healing: Near wound site General: Any standard site works Site rotation: Use 6-8 different sites Rotate each injection Keep 2+ weeks between same site Prevents tissue irritation and scar tissue Injection supplies What you need: Reconstituted GHK-Cu vial Insulin syringes (29-31G, 1/2" or 5/16") Alcohol wipes Sharps container Bandaids (optional) Syringe markings: Insulin syringes marked in units 100 units = 1ml 10 units = 0.1ml Easy to measure precise doses Step-by-step injection process Injection procedure: Prepare Wash hands Remove GHK-Cu from fridge Let warm 5-10 minutes (room temp more comfortable) Gather supplies Clean injection site Wipe with alcohol Let air dry completely Draw GHK-Cu Clean vial top with alcohol Insert needle into vial Draw desired dose (e.g., 0.2ml for 2mg) Check for air bubbles, tap to remove Pinch skin Create skin fold with thumb and finger Provides cushion for needle Insert needle 45-90 angle Quick, smooth insertion Insert fully Inject slowly Push plunger steadily 3-5 seconds Don't rush Remove and dispose Pull needle straight out Apply pressure if needed Dispose in sharps container Never recap Store GHK-Cu Return to refrigerator immediately Protect from light See our peptide injections guide , getting started with peptides , and common peptide mistakes beginners make

Symptoms include chronic headache, blurred vision, tingling sensations, nausea, and vomiting