GHK Cu for Skin: SIGNAL's Guide to Rejuvenation If youre using GHK Cu and it stings a little (which is common) this ones for you , In this reel Im sharing the small tweaks that have helped me make peptide injections way more comfortable Amazon.com: 27:17 Recovery Joint and Muscle Recovery Cream with Copper Peptide (GHK Cu), Arnica and MSM Fast Absorbing Lotion for Post Workout and Daily Recovery Non Greasy, Made in USA (3.38 fl oz GHK CU, Why this audio? Because injecting feels like a constant wasp sting so it takes me about 15 seconds to pin .2 mL. I dread this shot every night for that reason. Also, it leaves me bruised, so I