ghk cu metallic taste in mouth Can GHK-Cu Be Taken Orally? – Neurogan Health PSA: Albeit rare Copper peptide
Description
Its known for turning its complex cellular work into real, visible improvements for your skin

Rat calvarial osteoblasts seeded into a scaffold containing the RGD and FHRRIKA sequences were found to remain viable and have higher proliferation kinetics compared to the controls in which no peptides were added [184]

BPC-157 is a 15-residue peptide acting through NO and growth factor pathways without metal cofactors

These findings lay a groundwork for future research to explore the specific causal pathways and develop targeted therapeutic interventions

Neither is objectively "better" they serve different purposes with different delivery profiles
It helps stimulate collagen production, promotes skin regeneration, and can reduce wrinkles and fine lines
