Research Journal
Practical guides, compound explainers, and quality-focused notes for the research community.
Latest Reading
Explore current articles on peptide quality, research fundamentals, and performance science.
NAD+ is a dinucleotide coenzyme; glutathione is a thiol tripeptide. A sourced comparison of their roles, synthesis and the NADPH step that links them.
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IGF-1 is the mature 70-residue hormone; MGF is a splice variant and a synthetic E-domain peptide with contested activity. A sourced comparison.
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TB-500 is an actin-binding fragment of thymosin beta-4; GHK-Cu is a copper-binding plasma tripeptide. A sourced comparison of models, readouts and gaps.
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Tirzepatide pairs GLP-1 with the GIP receptor; mazdutide pairs it with the glucagon receptor. A sourced comparison of their mechanism data and status.
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Retatrutide vs survodutide: a GLP-1/GIP/glucagon triple agonist and a GLP-1/glucagon dual agonist. Receptors, rodent mechanisms, trial designs and tolerability, with PubMed sources. Research use only.
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Tesamorelin vs IGF-1: one is a GHRH analogue acting on the pituitary, the other is the downstream effector that suppresses GH. Receptors, feedback and PubMed sources. Research use only.
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GIP and GLP-1 are the two incretin hormones. A sourced comparison of their receptors, glucagon and stomach effects, DPP-4 breakdown and how tirzepatide engages each.
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Selank is tuftsin plus Pro-Gly-Pro. A sourced comparison of sequence, origin, neuropilin-1 and enkephalinase mechanisms, and the two rat studies that tested both.
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BPC-157 and GHK-Cu share no receptor or mechanism. A sourced comparison of their structure, origins, mechanism papers, models and the gaps in human data.
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Semax vs ACTH(4-10): how a heptapeptide analogue was built from an ACTH fragment, what changed in the sequence, and what rat studies of each report, with PubMed sources. Research use…
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