Peptide purity: what 99% means and how it is tested
Peptide purity explained: what 99% HPLC purity means, how it differs from peptide content, what the other 1% is, and what EU rules say about limits.
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What is a COA? Certificate of analysis explained for peptides
What is a COA? A certificate of analysis is a lab report for one lot. See what COAs show for retatrutide, MOTS-c and SS-31, and how to check one.
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Tesamorelin Peptide: FDA-Approved Egrifta, What the Trials Showed, and How It Compares With Sermorelin, Ipamorelin and CJC-1295
Tesamorelin peptide explained: FDA-approved Egrifta, phase 3 and liver fat trials, cancer and glucose warnings, vs sermorelin and ipamorelin, and its COA.
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Sermorelin Peptide: The Geref History, What the Human Trials Showed, and How It Compares With Tesamorelin, Ipamorelin and CJC-1295
Sermorelin peptide explained: Geref’s FDA history, what child and adult trials showed, sermorelin vs tesamorelin, ipamorelin and CJC-1295, and its COA.
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CJC-1295 and Ipamorelin: What the Pairing Is, What the Evidence Shows, and What It Does Not
CJC-1295 and ipamorelin explained: why the pair is used, what the GHRH plus GHRP evidence is, blend math, dosage claims, FDA and WADA status.
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Ipamorelin Peptide: How It Works, How It Compares With CJC-1295, Sermorelin and Tesamorelin, and What the Research Shows
Ipamorelin peptide explained: how it works, ipamorelin vs CJC-1295, sermorelin and tesamorelin, human trial results, FDA and WADA status, and its COA.
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CJC-1295 Peptide: With DAC vs Without DAC, Mod GRF 1-29, and What the Research Shows
CJC-1295 peptide explained: with DAC vs without DAC (Mod GRF 1-29), what human studies tested, FDA and WADA status, and how to read a COA.
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Glutathione Peptide: What It Is, What Supplement and Injection Research Shows, and How Labs Use It
Glutathione peptide explained: structure, how cells make it, what oral and injection studies show, FDA warnings, and how to read a COA.
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Are Peptides Legal? What US Law Says, What “Research Use Only” Means, and What the FDA Did in 2026
Are peptides legal in the US? FDA approval, compounding, research use only labels and the August 2026 warning letters, sourced to FDA. Not legal advice.
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5 Amino 1MQ: A Small Molecule, Not a Peptide, and What the Research Shows
What is 5 amino 1MQ? A sourced guide to the NNMT inhibitor: why it is not a peptide, what mouse studies show, why no dose exists, and how to vet a vial.
