Vendor comparison · 2026
AOD-9604 vendors: 22 compared on COAs and price
MetabolicAlso known as AOD9604, hGH fragment 176-191
Evidence tier
Limited published literature
16 publications over 25 years · trials not yet curated
- Vendors carrying it
- 22
- 22 with a listed price
- Vendors with checkable COAs
- 9
- 9 publish any certificate
- Lots tested
- 13
- 13 naming a checkable lab
- Independent assays
- 0
- none on file yet
- Newest assay
- 1 Sept 2026
- oldest 17 Sept 2025
- Laboratories named
- 6
- most often Freedom Diagnostics Testing
- Median label gap
- 5.0%
- 54% of lots within 5% of label
- Median purity
- 99.72%
- 13 of 13 lots at 99% or above
- Lowest price per mg
- $6.00
- peer median $10.50
- Publications located
- 16
- researched since 2001
Source: PepIndex, an independent index of research-peptide vendors. No vendor can pay for a rank, every score is computed by a published formula, and every figure links to the document it was read from.
Next Gen Peptides has the most checkable AOD-9604 testing in this index: 3 lots assayed by ILS Laboratories, the newest on 1 Sept 2026. The lowest listed price is $6.00 per mg at Next Gen Peptides, the same vendor, against a peer median of $10.50. 22 vendors carrying AOD-9604 are compared below. 9 publish at least one certificate naming a checkable laboratory, 13 lot records are on file, and none is an independently commissioned assay. Figures are PepIndex's own: it is an independent index of research-peptide vendors, no vendor can pay for a rank, and each figure links to the certificate it was read from.
Every vendor carrying AOD-9604
| # | Vendor | Score here | Price / mg | Lots | Newest test | Laboratory | Mean purity | Label gap | Reports |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Next Gen PeptidesISO/IEC 17025 | 93.697% | $6.00 (57%) | 3 / 3 | ILS Laboratories | 99.8% | 4.9% | ||
| 2 | Ascend ScienceISO/IEC 17025 | 89.194% | $9.10 (87%) | 1 / 1 | Kovera Labs and/or ILS Labs | 99.8% | 36.6% | ||
| 3 | Amino ClubISO/IEC 17025Age-gated COAs | 86.598% | $10.00 (95%) | 0 | — | — | — | — | |
| 4 | Modern AminosISO/IEC 17025COAs need an account | 8697% | $7.80 (74%) | 1 / 1 | Freedom Diagnostics Testing | 99.8% | 13.2% | ||
| 5 | Simple Peptide | 8292% | $9.00 (86%) | 1 / 1 | Freedom Diagnostics Testing | 99.7% | 6.8% | ||
| 6 | PeptidePlugs | 81.494% | $12.00 (114%) | 2 / 2 | Freedom Diagnostics Testing | 99.5% | 2.1% | ||
| 7 | Ascension Peptides | 80.489% | $11.00 (105%) | 2 / 2 | MZ Biolabs | 99.6% | 4.5% | ||
| 8 | Koi PeptidesAge-gated COAs | 79.392% | $9.00 (86%) | 0 | — | — | — | — | no reportVisit site |
| 9 | NeuroLabs Research | 77.991% | $12.00 (114%) | 0 | — | — | — | — | no reportVisit site |
| 10 | Protide HealthAge-gated COAs | 75.292% | $12.00 (114%) | 0 | — | — | — | — | no reportVisit site |
| 11 | Prime PeptidesISO/IEC 17025 | 72.896% | $12.00 (114%) | 0 | — | — | — | — | no reportVisit site |
| 12 | Northline LabsISO/IEC 17025 | 7195% | $16.00 (152%) | 1 / 1 | Horizon Analytical | 99.7% | 0.5% | ||
| 13 | GenX Peptides | 6969% | $8.80 (84%) | 0 | — | — | — | — | no reportVisit site |
| 14 | Good Science Bio | 68.571% | $10.00 (95%) | 0 | — | — | — | — | no reportVisit site |
| 15 | Bench Grade Peptides | 67.789% | $21.00 (200%) | 0 | — | — | — | — | no reportVisit site |
| 16 | Mile High Compounds | 67.591% | $6.00 (57%) | 0 | — | — | — | — | no reportVisit site |
| 17 | True Research Labs | 67.268% | $8.80 (84%) | 0 | — | — | — | — | no reportVisit site |
| 18 | Biotech Peptides | 65.360% | $8.80 (84%) | 0 | — | — | — | — | no reportVisit site |
| 19 | Evolve Peptides | 64.468% | $11.00 (105%) | 0 | — | — | — | — | no reportVisit site |
| 20 | Licensed Peptides | 61.287% | $17.00 (162%) | 1 / 1 | Vanguard Laboratory | 99.2% | 4.6% | ||
| 21 | Sports Technology LabsAge-gated COAs | 56.371% | $14.40 (137%) | 0 | — | — | — | — | no reportVisit site |
| 22 | Vertex Labs | 54.272% | $18.00 (171%) | 1 / 1 | Freedom Diagnostics Testing | 99.1% | 16.3% |
Independent assays
No independently commissioned assay of AOD-9604 is on file. All 13 records below were published by the vendor that sells the product, naming the laboratory shown. PepIndex does not yet commission its own assays, so nothing on this page establishes what is in a vial beyond the vendor’s own certificate. A record moves into this section the moment an assay commissioned by anyone other than the seller is indexed.
What the certificates show
13 of 13 lots at 99% or above; median 99.72%.
| Range | lots |
|---|---|
| <95% | 0 |
| 95–97% | 0 |
| 97–98% | 0 |
| 98–99% | 0 |
| 99–99.5% | 4 |
| ≥99.5% | 9 |
54% of lots within 5% of the labelled mass; median gap 5.0%.
| Range | lots |
|---|---|
| ≤2% | 3 |
| 2–5% | 3 |
| 5–10% | 4 |
| 10–20% | 2 |
| >20% | 1 |
22 vendors, $6.00 to $21.00; median $10.50.
| Range | vendors |
|---|---|
| $5.00–$10.00 | 9 |
| $10.00–$15.00 | 9 |
| $15.00–$20.00 | 3 |
| $20.00–$25.00 | 1 |
Purity and mass are read from each certificate as published; the label gap is |labeled − assayed| ÷ labeled. Every value behind these bars is in the certificate table below.
Laboratories used
| Laboratory | Lots | Vendors | Share | Verify |
|---|---|---|---|---|
| Freedom Diagnostics TestingUS | 5 | 4 | 38% | Public lookup |
| ILS LaboratoriesUS | 3 | 1 | 23% | Public lookup |
| MZ BiolabsUS | 2 | 1 | 15% | No public lookup found |
| Horizon Analytical | 1 | 1 | 8% | No public lookup found |
| Kovera Labs and/or ILS Labs | 1 | 1 | 8% | No public lookup found |
| Vanguard LaboratoryUS | 1 | 1 | 8% | No public lookup found |
Every certificate record
Score breakdown
The score has two halves: the research base — how long the compound has been studied and how much has been published — and the quality of the evidence the market produces for it, aggregated across every vendor that carries it: assayed purity, lot-to-lot consistency, readable third-party certificates and those vendors’ review record. It measures the evidence base, not the merits or safety of the substance.
Studied since 2001 — 25 years of published research
How long the compound has been studied. Fifteen years or more of published literature earns full marks; a newer compound earns less.
16 publications indexed in PubMed
The volume of published literature located. Full marks at fifty or more publications.
Mean assayed purity 99.6% across 13 certificates
Average assayed purity on the certificates published by vendors that carry this compound. Full marks at 99.5%+, nothing at 95% or below.
±0.27 pts purity across lots, mean label deviation 8.1%
How tightly assayed purity and labeled-versus-actual mass hold across different lots. Rewards reproducible manufacturing.
22 of 22 listing vendors publish an accessible certificate policy
Whether the vendors carrying this compound publish per-lot certificates anyone can read without an account.
13 of 13 certificates from a recognised independent lab
Share of certificates issued by a recognised third-party testing lab rather than an unnamed or self-named one.
What is AOD-9604?
A modified fragment of the C-terminus (residues 176–191) of human growth hormone, studied for effects on fat metabolism without the growth-promoting activity of the full-length hormone.
Studied in published research for fat metabolism and weight loss.
Regulatory status
Labeled by vendors for laboratory research use only. Not approved as a medicine in the United States, United Kingdom, or European Union.
What the research examines
The areas of published research this compound appears in. These describe what the literature has studied — never a claim of benefit, effect or suitability for any use.
Published research
Studied in animal models and in human obesity trials that did not meet their primary weight-loss endpoint. PepIndex does not evaluate clinical significance and does not describe administration.
- AOD-9604 Metabolic — Current opinion in investigational drugs (London, England : 2000) (2004)
Peer-reviewed article indexed in PubMed, published in Current opinion in investigational drugs (London, England : 2000) (2004).
- Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions — Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews (2026)
Peer-reviewed article indexed in PubMed, published in Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews (2026).
- Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance — Sports medicine (Auckland, N.Z.) (2026)
Peer-reviewed article indexed in PubMed, published in Sports medicine (Auckland, N.Z.) (2026).
- AOD-9604 does not influence the WADA hGH isoform immunoassay — Drug testing and analysis (2013)
Peer-reviewed article indexed in PubMed, published in Drug testing and analysis (2013).
- Human sports drug testing by mass spectrometry — Mass spectrometry reviews (2017)
Peer-reviewed article indexed in PubMed, published in Mass spectrometry reviews (2017).
- Obesity drugs in clinical development — Current opinion in investigational drugs (London, England : 2000) (2006)
Peer-reviewed article indexed in PubMed, published in Current opinion in investigational drugs (London, England : 2000) (2006).
- Analytical approaches for the detection of emerging therapeutics and non-approved drugs in human doping controls — Journal of pharmaceutical and biomedical analysis (2014)
Peer-reviewed article indexed in PubMed, published in Journal of pharmaceutical and biomedical analysis (2014).
- Gateways to clinical trials — Methods and findings in experimental and clinical pharmacology (2003)
Peer-reviewed article indexed in PubMed, published in Methods and findings in experimental and clinical pharmacology (2003).
PepIndex describes what literature exists. We do not interpret it, assess clinical significance, or publish quantities, protocols or instructions for use.