GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic Two Weeks on GHK CU by Rory Uphold The Ladies Room If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection What Are the Benefits of GHK Cu Peptide for Anti Aging Skincare? For a GHKCu (coppercomplexed glycylhistidyllysine) solution prepared at 1 mg mL, how many insulinsyringe units (1 unit = 0.01 mL) should be drawn for a specific dose?