How to Read a GLOW Certificate of Analysis (COA)
A Certificate of Analysis is only useful if you know which number on it matters for the compound in front of you. For GLOW, the informative checks are not the same as for a generic short peptide.
In plain English
A good report identifies all three ingredients and shows a ratio close to 50:10:10 by weight. Because GHK-Cu is a copper complex, peptide purity alone is not enough — copper content should be measured separately. Also look for a small companion peak indicating oxygen damage to the TB-500.
What GLOW actually is
GLOW is three well-known research compounds freeze-dried together in a single 70 mg vial: GHK-Cu at 50 mg, BPC-157 at 10 mg and TB-500 at 10 mg. Each is studied separately elsewhere, and each works through a different mechanism — collagen and skin matrix for GHK-Cu, blood vessel formation for BPC-157, cell movement for TB-500.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
Assays that are informative for GLOW
What to check on the COA
A meaningful GLOW COA resolves all three components and states the ratio, which should approximate 50:10:10 by mass. Because GHK-Cu is a coordination complex, peptide purity alone is insufficient — copper content should be confirmed separately. Watch also for a +16 Da species indicating oxidation of the TB-500 component.
Ratio deviation from 50:10:10, free (uncomplexed) GHK peptide, oxidised TB-500, and the individual synthesis impurities of each component.
Verify a Popular Peptides batch
Every batch is third-party tested by HPLC and LC-MS with a published Certificate of Analysis (≥99% purity). Enter a lot number to pull the COA for the exact vial in front of you.
What GLOW is studied for
The majority component, with the deepest dermal literature — collagen and glycosaminoglycan synthesis in fibroblast models.
Studied around vessel formation and growth-factor pathways in tissue-repair models.
Actin sequestration and directed cell movement — how cells reach a tissue defect.
The three components act through genuinely non-overlapping mechanisms, which is the rationale for combining them.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More GLOW reference
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
Which solvents work, why, and what abnormal dissolution behaviour indicates.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Purity & COA reference for other compounds
GLOW is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.