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That gap is exactly why the compound is sold for research only

GHK-Cu Peptide Injection vs Topical (Quick Comparison) Before understanding the best way to take copper peptides, here's how GHK-Cu injection vs topical options perform on important factors: Benefits of GHK-Cu For Hair, Skin, and More If you're deciding between GHK-Cu topical or injection options, it's helpful to understand why this copper peptide has gained popularity for age management in the first place: Hair Growth and Scalp Support Research published in the journal Bioactive Materials suggests that GHK-Cu is potentially beneficial for hair and scalp health when applied topically

To lighten scars, blemishes that happen with age, and acne marks

Peptides are commonly supplied in lyophilized form as a powder, which offers greater stability during storage and shipping than liquid formulations