Home · Evidence Strength

Catalog by evidence

Where the data actually is.

We don’t claim every compound works. We show exactly how strong the evidence is for each one — so a researcher can choose with real criteria. Compounds are grouped from the strongest human evidence to the most preclinical.

Human data available Preclinical dominant Mechanistic · limited human data

Every badge links through to that compound’s full Evidence at a glance panel, which separates human, animal and in-vitro data and states what remains unknown.

Tier 01

Clinically mature molecules

An FDA-approved pharmaceutical of the same molecule exists, backed by substantial human clinical data. The research-grade material is not that approved product.

Human data available
Human data available
Human data available
Tier 02

Human investigational data

Meaningful human clinical trials exist, but the compound is investigational — not approved for any use.

Human data available
Human data available
Tier 03

Early human + strong preclinical / mechanistic

Some human evidence exists (often small, early-phase, topical, or for a related molecule) on top of a strong preclinical or mechanistic base. Read each compound’s evidence panel for the nuance.

Human data available
Preclinical dominant
Preclinical dominant
Mechanistic · limited human data
Mechanistic · limited human data
Tier 04

Preclinical / mechanistic dominant

Large animal or cell-culture research base with little to no human clinical evidence. Highest gap between interest and human validation — keep claims most conservative here.

Preclinical dominant
Mechanistic · limited human data
Mechanistic · limited human data
Tier 05

Cellular metabolite research

Not a peptide — a coenzyme/metabolite with a distinct evidence structure. Human evidence for direct NAD+ differs from that of its precursors (NR, NMN).

Preclinical dominant
A note on “approved.” Several molecules here exist inside FDA-approved pharmaceuticals. That never makes a research-grade vial an approved medicine — the research material is not the approved drug product and is supplied for laboratory research only.

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Research use only. Evidence tiers describe the published research base, not any effect in humans. VP Peptides products are not drugs, foods, or cosmetics; not for human or veterinary use, diagnosis, treatment, or administration. Nothing here is a claim of safety or efficacy.