tretinoin vs ghk cu retinol vs ghk cu Cu-GHK

GHK-Cu (copper peptide) is a synthetic tripeptide marketed for potential hair growth support, but clinical evidence for hair-specific outcomes remains limited and inconsistent across small studies

Vitamin B12 (also known as cobalamin) is a water-soluble vitamin that plays an important role in metabolism, red blood cell formation, and nerve function

Insulin, one of the first peptide hormones to be discovered, helps people with Type 1 diabetes and some with Type 2 manage their blood sugar levels

G.WilkeS.HusenA.AllcockN.NivisonM.et al (2004)

A few case reports and promising lab results arent enough for me to recommend this to patients

Just like retinol, the acidity destabilizes peptide bonds