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Claims vs COA / Onyx Biolabs

Onyx Biolabs: claims vs COA

Website claim: 99% purity. “…ts search $ 0.00 0 Cart Welcome Offer • 25% Off First Order ≥99% Purity Standards Analytical Purity. Uncompromising Quality. Settin…” Source (read 2026-09-25)
73
certificates read
34 / 38
vials outside ±3% of label
16
beyond ±10% (major)
0 / 73
below advertised purity
ProductLabel → measuredPurityMain impurityLabCOA
Adamax
10mg → 11.02mg
Overfilled +10.2%
99.665%
Meets 99%
0.33% not itemised—Open
BPC-157/TB-500
BPC-157: 10mg → 11.68mg Overfilled +16.8%
TB-500: 10mg → 10.77mg Over label +7.7%
99.787%
Meets 99%
0.21% not itemised—Open
BPC-157/TB-500
BPC-157: 5mg → 5.74mg Overfilled +14.8%
TB-500: 5mg → 5.76mg Overfilled +15.2%
99.689%
Meets 99%
0.31% not itemised—Open
BPC-157/TB-500
BPC-157: 5mg → 5.16mg Over label +3.2%
TB-500: 5mg → 5.73mg Overfilled +14.6%
99.777%
Meets 99%
0.22% not itemised—Open
BPC-157/TB-500
BPC-157: 10mg → 11.33mg Overfilled +13.3%
TB-500: 10mg → 11.54mg Overfilled +15.4%
99.716%
Meets 99%
0.28% not itemised—Open
CJC-1295 (No DAC)/Ipamorelin
Ipamorelin: 5mg → 5.78mg Overfilled +15.6%
CJC-1295 (No DAC): 5mg → 5.78mg Overfilled +15.6%
99.963%
Meets 99%
0.04% not itemised—Open
CJC-1295 (No DAC)/Ipamorelin
Ipamorelin: 5mg → 5.83mg Overfilled +16.6%
CJC-1295 (No DAC): 5mg → 5.71mg Overfilled +14.2%
99.639%
Meets 99%
0.36% not itemised—Open
Glow
BPC-157: 10mg → 11.51mg Overfilled +15.1%
TB-500: 10mg → 11.37mg Overfilled +13.7%
GHK-Cu: 50mg → 54.64mg Over label +9.3%
99.714%
Meets 99%
0.29% not itemised—Open
Klow
TB-500: 10mg → 11.69mg Overfilled +16.9%
BPC-157: 10mg → 11.72mg Overfilled +17.2%
KPV: 10mg → 11.99mg Overfilled +19.9%
GHK-Cu: 50mg → 54.42mg Over label +8.8%
99.882%
Meets 99%
0.12% not itemised—Open
PT-141
10mg → 11.57mg
Overfilled +15.7%
99.635%
Meets 99%
0.36% not itemised—Open
Retatrutide
30mg → 33.31mg
Overfilled +11.0%
99.563%
Meets 99%
0.44% not itemised—Open
Retatrutide
15mg → 16.8mg
Overfilled +12.0%
99.648%
Meets 99%
0.35% not itemised—Open
Retatrutide 15mg
15mg → 19.8mg
Overfilled +32.0%
99.308%
Meets 99%
0.69% not itemisedfreedom-diagnosticsOpen
Tesamorelin
20mg → 26.39mg
Overfilled +32.0%
99.608%
Meets 99%
0.39% not itemised—Open
Tesamorelin 5mg
5mg → 6.17mg
Overfilled +23.4%
99.275%
Meets 99%
0.72% not itemisedfreedom-diagnosticsOpen
Tirzepatide
30mg → 33.24mg
Overfilled +10.8%
99.6%
Meets 99%
0.40% not itemised—Open
5-Amino-1MQ
50mg → 47.2mg
Under label -5.6%
99.553%
Meets 99%
0.45% not itemised—Open
5-Amino-1MQ
50mg → 51.88mg
Over label +3.8%
99.369%
Meets 99%
0.63% not itemised—Open
BPC-157/TB-500
BPC-157: 10mg → 9.84mg On label -1.6%
TB-500: 10mg → 10.97mg Over label +9.7%
99.719%
Meets 99%
0.28% not itemised—Open
Epithalon
50mg → 53.73mg
Over label +7.5%
99.68%
Meets 99%
0.32% not itemised—Open
GHK-CU 100mg
100mg → 90.48mg
Under label -9.5%
99.923%
Meets 99%
0.08% not itemisedfreedom-diagnosticsOpen
GHK-Cu
100mg → 108.83mg
Over label +8.8%
99.647%
Meets 99%
0.35% not itemised—Open
Kisspeptin-10
10mg → 9.27mg
Under label -7.3%
99.517%
Meets 99%
0.48% not itemised—Open
OBL-2 TRZ
30mg → 32.14mg
Over label +7.1%
99.233%
Meets 99%
0.77% not itemised—Open
OBL-2 TRZ
60mg → 63.89mg
Over label +6.5%
99.727%
Meets 99%
0.27% not itemised—Open
Retatrutide
40mg → 42.3mg
Over label +5.8%
99.595%
Meets 99%
0.41% not itemised—Open
Retatrutide
40mg → 42.53mg
Over label +6.3%
99.569%
Meets 99%
0.43% not itemised—Open
Retatrutide
60mg → 63.37mg
Over label +5.6%
99.59%
Meets 99%
0.41% not itemised—Open
SS-31
50mg → 51.52mg
Over label +3.0%
99.32%
Meets 99%
0.68% not itemised—Open
SS-31
10mg → 10.7mg
Over label +7.0%
99.459%
Meets 99%
0.54% not itemised—Open
Semaglutide
15mg → 15.53mg
Over label +3.5%
99.642%
Meets 99%
0.36% not itemised—Open
Semax
10mg → 10.52mg
Over label +5.2%
99.701%
Meets 99%
0.30% not itemised—Open
Tirzepatide
15mg → 15.59mg
Over label +3.9%
99.747%
Meets 99%
0.25% not itemised—Open
Tirzepatide
60mg → 58.06mg
Under label -3.2%
99.774%
Meets 99%
0.23% not itemised—Open
BPC-157Not measured
99.853%
Meets 99%
0.15% not itemised—Open
BPC-157Not measured
99.816%
Meets 99%
0.18% not itemised—Open
BPC-157
— → 0.58mg
Not checked
99.654%
Meets 99%
0.35% not itemised—Open
Cagrilintide
10mg → 10.16mg
On label +1.6%
99.639%
Meets 99%
0.36% not itemised—Open
DSIP
10mg → 10.16mg
On label +1.6%
99.464%
Meets 99%
0.54% not itemised—Open
GHK-CuNot measured
99.978%
Meets 99%
0.02% not itemised—Open
GHK-CuNot measured
99.951%
Meets 99%
0.05% not itemised—Open
GlutathioneNot measured
99.644%
Meets 99%
0.36% not itemised—Open
Glutathione
1500mg → 1520.06mg
On label +1.3%
99.331%
Meets 99%
0.67% not itemised—Open
IGF-1 LR3Not measured
99.923%
Meets 99%
0.08% not itemised—Open
IpamorelinNot measured
99.938%
Meets 99%
0.06% not itemised—Open
KPVNot measured
99.957%
Meets 99%
0.04% not itemised—Open
KPV
— → 0.31mg
Not checked
99.678%
Meets 99%
0.32% not itemised—Open
Kisspeptin-10Not measured
99.899%
Meets 99%
0.10% not itemised—Open
MOTS-cNot measured
99.933%
Meets 99%
0.07% not itemised—Open
MOTS-cNot measured
99.924%
Meets 99%
0.08% not itemised—Open
Melanotan-2Not measured
99.896%
Meets 99%
0.10% not itemised—Open
NAD+Not measured
99.272%
Meets 99%
0.73% not itemised—Open
NAD+
500mg → 488.47mg
On label -2.3%
99.549%
Meets 99%
0.45% not itemised—Open
PT-141Not measured
99.916%
Meets 99%
0.08% not itemised—Open
RetatrutideNot measured
99.946%
Meets 99%
0.05% not itemised—Open
RetatrutideNot measured
99.942%
Meets 99%
0.06% not itemised—Open
RetatrutideNot measured
99.976%
Meets 99%
0.02% not itemised—Open
RetatrutideNot measured
99.947%
Meets 99%
0.05% not itemised—Open
RetatrutideNot measured
99.948%
Meets 99%
0.05% not itemised—Open
RetatrutideNot measured
99.866%
Meets 99%
0.13% not itemised—Open
RetatrutideNot measured
99.368%
Meets 99%
0.63% not itemised—Open
RetatrutideNot measured
99.664%
Meets 99%
0.34% not itemised—Open
RetatrutideNot measured
99.893%
Meets 99%
0.11% not itemised—Open
RetatrutideNot measured
99.654%
Meets 99%
0.35% not itemised—Open
RetatrutideNot measured
99.491%
Meets 99%
0.51% not itemised—Open
SelankNot measured
99.934%
Meets 99%
0.07% not itemised—Open
SelankNot measured
99.948%
Meets 99%
0.05% not itemised—Open
SemaxNot measured
99.942%
Meets 99%
0.06% not itemised—Open
TesamorelinNot measured
99.852%
Meets 99%
0.15% not itemised—Open
TesamorelinNot measured
99.943%
Meets 99%
0.06% not itemised—Open
TirzepatideNot measured
99.223%
Meets 99%
0.78% not itemised—Open
TirzepatideNot measured
99.136%
Meets 99%
0.86% not itemised—Open
VIPNot measured
99.796%
Meets 99%
0.20% not itemised—Open

How this is checked

  • Vial content. Measured net peptide content against the size on the label. Within ±3% is on label, 3–10% is off label, beyond ±10% is a major deviation (under- or overfilled). When a certificate weighs several vials of the batch, the vial farthest from the label is the one judged, and with several purity results the lowest counts. Blends are only checked when the certificate lists each component.
  • Purity. HPLC purity on each certificate against the purity the supplier promises site-wide on its own website. Up to 1 point below the claim is amber, more than that is red. Only a direct promise counts (“99%+ purity guaranteed”); explanations of what purity means, one product's figure and page code are not treated as a claim. A certificate that reports only a bound (“>99%”) is judged only when the bound meets the claim, and a specification line is never read as a result.
  • Whose certificate. A certificate is only read once our client-identity review has looked at it, and one issued to a different company is left out — whether the automatic check or a manual review found it. A certificate issued to the company that runs the supplier's own website counts as the supplier's. A file hosted on another supplier's website is not counted for this one. The same rules decide which certificates appear on supplier and product pages. Only peptide certificates are read: bacteriostatic water, acetic acid and other diluents are left out, and so are product data sheets, which state a specification rather than a batch result.
  • Main impurity. Shown when the certificate itemises it: a named impurity (TFA, deletion sequence, oxidation…) or the largest secondary peak in the HPLC peak table. Most certificates report only a purity figure, so the rest of the sample is not itemised.
  • Trust Score. These checks are 10 of the 25 Transparency points: vial content 7 (full credit within ±3%, half up to ±10%, none beyond, over- and underfilled alike), purity 3 (98% is the bar when a supplier advertises no figure). Fewer than 5 readable results gives half credit rather than a guess.
  • These are the supplier's own published certificates, read automatically from the PDF or image. Janoshik results tables are read twice from the image, cell by cell, and a figure the two readings disagree on is left out rather than guessed. A certificate covers one batch on one date. We have not tested these batches ourselves.

Onyx Biolabs supplier page

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