Most peptides don't come ready to inject they come as powder for a reason. Peptides are lyophilized (freeze dried) to keep them stable and effective. When you receive them, you simply: Add GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health GHK CU 50 mg Superior Chains Research Labs GHK Cu (Copper Peptide) 50mg 99.80% Purity Research Peptide Miro Biotech GHK Cu Copper Peptide 1 g (Powder, >99% purity) Lrak Technologies