The concern isnt just that youll develop antibodies against the peptide itselfits that those antibodies might cross-react with your own endogenous proteins
The products are not medicines or drugs and they have not been approved by the FDA to prevent, treat, diagnose, mitigate, or cure any disease, ailment or medical condition
GHK-CU supports the skins natural cellular regeneration process
TABLE 4 The application of NAC in bone defect-related animal models
However, the chromogenic probe faces some obvious flaws like short absorption wavelength (340 nm), high background, and low sensitivity
But those results used topical application at 1% concentration, not subcutaneous injection