Primary entity: Peptide-adjacent compounds index
None of the compounds on this page are peptides. A peptide is a short chain of amino acids joined by peptide bonds. The compounds below are small molecules, steroidal or non-steroidal receptor modulators, plant extracts, or supplement metabolites that "research chemical" shops often sell alongside peptides — which is why people search for them as peptides. Each profile carries a not-a-peptide callout, regulatory and WADA context, and no dosing. True peptides are in Peptides A–Z.
Key takeaways
- Not peptides: SARMs, MK-677, Cardarine, SR9009, and the rest are small molecules or extracts — not amino-acid chains.
- Not a shortcut: most are unapproved, investigational, discontinued, or sold as supplements with thin human data.
- Sport status matters: many are WADA-prohibited — check the WADA / sport status tool.
- Unsure what something is? Use the compound classifier.
Questions this page answers
- Which SARMs and SARM-adjacent compounds are profiled?
- Which metabolic modulators (PPAR, REV-ERB, ERR, and more) are covered?
- Which nootropics and stimulants are covered?
- Which supplements are covered?
- Where are the hierarchies and tools?
SARMs & SARM-adjacent
Selective androgen receptor modulators bind the androgen receptor; none is FDA-approved, and all are WADA-prohibited (S1.2). MK-677 is listed here because it is sold alongside SARMs, but it is a growth-hormone secretagogue — not a SARM and not a peptide.
| Compound | What it is | Note |
|---|---|---|
| ACP-105 | Non-steroidal SARM | Research chemical · thin data |
| LGD-4033 (Ligandrol) | Non-steroidal SARM | Investigational · WADA-prohibited |
| MK-677 (Ibutamoren) | Oral GH secretagogue | Not a SARM · not a peptide |
| Ostarine (MK-2866) | Non-steroidal SARM | Most-studied SARM · not approved |
| RAD-140 (Testolone) | Non-steroidal SARM | Investigational · WADA-prohibited |
| S-23 | Non-steroidal SARM | Preclinical research chemical |
| YK-11 | Steroidal SARM | Myostatin claims = cell-model folklore |
Metabolic modulators (PPAR / REV-ERB / ERR & more)
Small molecules researched for energy metabolism, endurance, or weight. They are often marketed with peptides for fat loss but share nothing structurally with them.
| Compound | What it is | Note |
|---|---|---|
| 5-Amino-1MQ | NNMT inhibitor (small molecule) | Preclinical · not a peptide |
| ATX-304 | AMPK activator (investigational) | Metabolic research |
| BAM15 | Mitochondrial uncoupler | Preclinical research |
| Cardarine (GW501516) | PPARδ agonist | Discontinued · not a SARM |
| SLU-PP-915 | ERR agonist | Preclinical "exercise mimetic" |
| SR9009 (Stenabolic) | REV-ERB agonist | Poor oral bioavailability · not a SARM |
| Tesofensine | Monoamine reuptake inhibitor | Investigational weight-loss drug |
Nootropics & stimulants
Wake-promoting drugs, foreign-approved stimulants, and stimulant-adjacent supplement ingredients — often confused with nootropic peptides like Semax and Selank.
| Compound | What it is | Note |
|---|---|---|
| Armodafinil | Wake-promoting drug (Rx in US) | Approved drug · not a peptide |
| Bromantane | Adamantane stimulant / anxiolytic | Approved in Russia only · WADA-prohibited |
| Eria jarensis (N,N-DMPEA) | Stimulant-adjacent supplement ingredient | Labeling and sport-status caveats |
Supplements
Sold as dietary supplements, which means no FDA pre-market efficacy review.
| Compound | What it is | Note |
|---|---|---|
| GBB (γ-butyrobetaine) | Carnitine precursor | Supplement metabolite |
| Turkesterone | Ecdysteroid plant extract | On WADA monitoring program |
Hierarchies & tools
- SARMs / performance hierarchy · Nootropics hierarchy
- Compound classifier · WADA / sport status
- Peptides vs steroids · Peptides A–Z · What are peptides?
Frequently asked questions
Are SARMs peptides?
No. SARMs are small molecules that bind the androgen receptor. Peptides are amino-acid chains. See the SARMs hierarchy and the classifier.
Is MK-677 a peptide or a SARM?
Neither. MK-677 (ibutamoren) is an orally active, non-peptide growth-hormone secretagogue.
Why are these on a peptide site?
Because they are sold and searched alongside peptides. We profile them so readers can tell what they actually are — not to promote them.
Do you sell any of these?
No. Educational site only, no dosing protocols.
Sources
- Peptide Tutorials compound profile mocks listed above; Disclaimers.
- World Anti-Doping Agency. The Prohibited List 2026. Check the current list and GlobalDRO before relying on sport status.
Educational content only — not medical advice. We do not sell peptides or any compound listed here.