ghk-cu peptide effects Is actually worth it?” is genuinely one of the most common questions in my comments, so let me finally answer it properly. The short version: copper peptides have real research behind GHK-Cu Peptide: Skin, Hair &
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L.: A parameterization of sea-salt aerosol source function for sub- and super-micron particles, Global Biogeochem

No, for a reconstituted peptide solution like BPC 157, passing through a 30G or 31G needle will not damage or degrade the compound
The supplements are that much more effective when they hit your bloodstream directly, so you need less

Song, W