Literature scope
One source is listed on this page. It prints no original elemental measurement. The direct answer says so.
Direct answer
For the question of whether injectable research peptides get heavy-metal tested, this row does not name vendors. The one source listed here, a 2026 University of Calgary clinical bulletin, prints no original arsenic or lead measurement and cites earlier papers for contaminants in falsified peptides (Clinical Pharmacology & Toxicology Pearl of the Week — Unauthorized Injectable Peptides, no DOI). The measured inorganic arsenic range, 1660 to 12,890 ppb in 6 of 27 preparations, is on Research Chemicals, Peptides & SARMs (Impurity profiling of the most frequently encountered falsified polypeptide drugs on the Belgian market, DOI 10.1016/j.talanta.2018.06.023).
v2.1 Step Zero scaffold — Category 26 (Peptides, SARMs, and Research Chemicals), Row 1. This row is defined in the taxonomy and its Step Zero lock (
docs/governance/category-26-step0-lock.md) but carries no candidate values yet. It is a routing destination. Sources populate it as ingest proceeds, after which a synthesis pass fills the evidence sections.
Sources
Sources catalogued for this page. The last column says how each source is used here.
| # | Citation | Year | Type | Used on this page for |
|---|---|---|---|---|
| 1 | University of Calgary Clinical 2026. Clinical Pharmacology & Toxicology Pearl of the Week — Unauthorized Injectable Peptides, CPT Pearl of the Week (Alberta Health Services / University of Calgary Cumming School of Medicine) | 2026 | Government report | CA tAs, Pb occurrence in Clinical bulletin from the Alberta Health Services Clinical Pharmacology & Toxicology service summarizing four case reports of unauthorized… |
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.