GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? Amazon.com : Truth Guy GHK CU Anti Aging Copper Peptide Serum for Skin & Hair Growth, with Carbon 60 for Fuller Hair, Beard and Lashes Boost Hair Growth & Reduce Aging Effect One Yes taking GHK the beauty peptide can feel a little spicy. Some people are also a lot more sensitive to copper and the sting can linger. Here are some things you can do to help, This content is for 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 If you're using GHK Cu and it stings a little (which is common) this one's for you In this reel I'm sharing the small tweaks that have helped me make peptide injections Love GHK Cu (its one of my favs!!!!!) but not loving the sting?, A slight sting is normaland worth it., It usually gets better over time as your body adjusts., To make it easier:, Inject slowly,