Science & Evidence

We publish the strength of the evidence, not just the story.

Every compound entry in our research library carries two plain labels: how mature the human evidence is, and what its regulatory status is. Where the honest label is 'insufficient', that is what we print.

Evidence maturity

  • Established

    Consistent findings from adequately powered, replicated human trials, generally supported by regulatory assessment for a defined indication.

  • Emerging

    Human data exist and are encouraging, but are limited in size, duration or independence. Conclusions may change.

  • Investigational

    Under formal clinical investigation. Not approved for public use, and outcomes and safety are still being determined.

  • Preclinical

    Findings come from cells or animal models. Interesting biology; not a human result.

  • Insufficient Evidence

    The honest answer today is that nobody knows. Absence of evidence is neither reassurance nor condemnation.

  • Regulatory Status Varies

    Classification differs between countries. Local law, registration and prescription requirements always apply.

Four questions to ask of any health claim.

  1. 01

    Who was studied, and are they comparable to the person the claim is aimed at?

  2. 02

    What was measured — a clinical outcome, or a surrogate marker?

  3. 03

    How large was the effect in absolute terms, not relative percentages?

  4. 04

    Has an independent group reproduced it?

Research library at a glance

  • Research-only6
  • Status varies — confirm locally4
  • Investigational1
  • Approved medicine2

Retatrutide is described throughout as investigational and is not approved for public use. We do not claim SAHPRA registration, certification or approval for any compound.

Information only — availability subject to applicable law, prescription/authorisation, and licensed healthcare/pharmacy channels. Nothing on this page is an offer to sell, and no dosing or self-administration guidance is provided.

South Africa — compliance notice

SAHPRA has publicly warned about unregistered peptide products being marketed to the South African public. In general, products intended to diagnose, treat, or otherwise alter bodily functions require registration or authorisation before they may lawfully be sold. ELLIVON BIOSCIENCES publishes reference information only and directs all clinical questions to registered healthcare professionals and licensed pharmacy channels.