The Conversation Once taboo, injecting is becoming normalised in the beauty industry and on social media. But what do peptide serums actually contain? And do the anti ageing claims stack up? GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health Do you know what this little blue injection is? It's called GHK Cu aka the Glow Peptide I've always believed in peptides for skincare, but honestly I never thought about Dihexa is concentrated in multiple brain regions. Rats fitted with a Download Scientific Diagram