neurogan ghk cu copper peptide face cream Ghk-Cu – PrettyStick CU peptide products formulated for skin Neurogan GHK-Cu Copper Peptide Face

First, CPPs in the nasal cavity are susceptible to enzymatic degradation in the mucus and the surface of the epithelium because of the inherent physicochemical characteristics of peptides (Szab et al., 2022)

Regarding the receptor-mediated transcytosis , the most studied targets are transferrin receptors (TFRC), insulin receptors (INSR), low-density lipoprotein receptors (LDLR), and folate receptors (FOLR) (Wu et al., 2023)

Supportive peptides such as oral BPC157 or KPV to repair mucosal integrity

Use only in controlled research environments

The standard dose is 1 mL, which is 1000 mcg of Vitamin B12

The product is manufactured at FDA-registered facilities under Current Good Manufacturing Practice (cGMP) regulations