However, pathological modifications oxidation, glycation, citrullination, carbonylation, and enzymatic carboxyethylation of cysteine (linked to ankylosing spondylitis) can render self-proteins immunogenic, driving autoimmune disease by presenting chemically altered peptides to the immune system as foreign antigens.
How to verify what you actually have Open the vial and check the label against this short checklist: If a product is labeled "bac water" but the label is missing the "0.9% benzyl alcohol" line, the contents are not USP-spec bacteriostatic water regardless of what the marketing says

Price range: $39.00 through $55.00 Free priority shipping on $250+ Third-party tested, COA published US-synthesized & shipped Discreet packaging Compound Information Technical Specifications Molecular profile CAS number49557-75-7 Molecular weight403.93 g/mol FormLyophilized Powder Purity99.38% (UPLC/MS) Lot NLGHK50501 Jul 03, 2026 Lot NLGHK50501 Jul 03, 2026 Available50mg, 100mg OriginSynthesized in the USA Storage & stability Protect from light Temperature-sensitive Lyophilized (powder) 20C stable long-term Reconstituted 28C use within 28 days Sources & References Peer-Reviewed Research International journal of molecular sciences Ternary Cu(II) Complex with GHK Peptide and Cis-Urocanic Acid as a Potential Physiologically Functional Copper Chelate 2020 PMID 32867146 Bossak-Ahmad K, et al
This potent supplement aids in fat metabolism, boosts energy levels, and supports optimal exercise performance