ghk cu cream vs injection GHK-Cu Copper Peptide (Prescription) Nourishes and hydrates skin with water GHK-Cu Oral Vs Injection: Complete
Description
One possible explanation is that your body is undergoing an adjustment period

A number of experiments established that GHK stimulates synthesis of collagen, selected glycosaminoglycans and small proteoglycan decorin [8,9]

The calculator then determines how much solution is needed for the desired dose

The cells were incubated with free FITC-D-CuP or FITC-M-CuP (identical in GHK and FITC molar concentrations) for 6 h