Reference information only. Therapept does not sell peptides and does not provide medical advice.Research-use notice
Independent reference platform
Research compounds, suppliers, testing laboratories and documentation — recorded against primary sources, with the gaps left visible instead of filled in.
What is here
Every record states where its values came from and when it was last reviewed. Fields that no primary source establishes are marked unknown rather than estimated.
14compounds
Formula, molecular weight, CAS number, sequence and United States regulatory status, each traced to PubChem, Drugs@FDA or FDA's published compounding tables.
12laboratories
Analytical laboratories with published peptide capability, recorded against what each one actually states about methods, accreditation and reporting.
3suppliers
Vendors recorded against their own public claims about documentation and lot traceability, with unknown fields left explicitly unknown.
18terms
Analytical and regulatory terminology — what chromatographic purity is a percentage of, what net peptide content measures, what accreditation covers.
Documentation
A certificate of analysis can be entirely truthful and still tell you almost nothing — because the sample cannot be tied to the product, or because the number does not measure what the reader assumes it measures. These guides cover what each field and each method actually establishes.
All guidesTesting & documentation
A certificate of analysis is a record of specific tests run on a specific lot. Here is what each field means, which fields are load-bearing, and the four ways a COA can be technically accurate and still tell you very little.
3 Sept 2026 · 9 min
Testing & documentation
HPLC and LC-MS are not competing methods or tiers of the same measurement. They answer different questions — how much of one thing, and which thing — and a purity figure without an identity confirmation is a known blind spot.
3 Sept 2026 · 8 min
Supplier research
Most supplier comparisons rank marketing. This is a checklist of things a supplier either can or cannot produce on request — and the distinction between evidence, self-reported claims, and design choices that look like evidence.
3 Sept 2026 · 10 min
Regulatory
The phrase is treated as a legal shield across the sector. Its actual regulatory footing is much narrower than that, and what a product is marketed for matters more to regulators than what the label says.
3 Sept 2026 · 7 min
Regulatory
These substances appear on FDA's active Category 2 table, on its table of withdrawn bulk-substance nominations, or in related FDA communications. Placement is a regulatory classification, not a safety assessment.
Intelligence
Newsletter
Changes to peptide regulation, testing practice, supplier documentation and the industry’s operating conditions — sent when there is something specific to report.
