Four reasons this serum belongs in your routine. GHK Cu Peptides that firm and support collagen renewal. Barrier support to keep your skin healthy and resilient. No injection. No needles. No clinic visit. 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 : . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu