Is CertaPeptides legit?
AffiliateCertaPeptides review: independent lab test results, published COAs, prices and ordering terms.

CertaPeptides prices
| Peptide | Cheapest listing | Price | Per mg | Price rank | |
|---|---|---|---|---|---|
| Retatrutide | Retatrutide 50mg1 × 50 mg | $269.99 | $5.40 | #149 of 198 | Buy |
| GHK-Cu | GHK-Cu 100mg1 × 100 mg | $75.59 | $0.756 | #170 of 199 | Buy |
| BPC-157 | BPC-157 20mg1 × 20 mg | $102.59 | $5.13 | #144 of 183 | Buy |
| MOTS-c | MOTS-c 40mg1 × 40 mg | $111.77 | $2.79 | #121 of 188 | Buy |
| Semax | Semax 30mg1 × 30 mg | $107.99 | $3.60 | #119 of 163 | Buy |
| Selank | Selank 30mg1 × 30 mg | $107.99 | $3.60 | #109 of 168 | Buy |
| 5-Amino-1MQ | 5-amino-1mq 5mg1 × 5 mg | $32.39 | $6.48 | #118 of 130 | Buy |
| Epithalon | Epitalon 50mg1 × 50 mg | $161.99 | $3.24 | #119 of 149 | Buy |
| SS-31 | SS-31 50mg1 × 50 mg | $183.59 | $3.67 | #104 of 135 | Buy |
| DSIP | DSIP 5mg1 × 5 mg | $30.23 | $6.05 | #107 of 151 | Buy |
| KPV | KPV 10mg1 × 10 mg | $50.75 | $5.08 | #125 of 163 | Buy |
| Thymosin Alpha-1 | Thymosin Alpha-1 10mg1 × 10 mg | $86.39 | $8.64 | #113 of 138 | Buy |
| Glutathione | Glutathione 1500mg1 × 1500 mg | $46.97 | $0.031 | #71 of 123 | Buy |
| Melanotan II | MT-2 (Melanotan 2 Acetate) 10mg1 × 10 mg | $37.79 | $3.78 | #112 of 155 | Buy |
| Kisspeptin-10 | KissPeptin-10 10mg1 × 10 mg | $38.87 | $3.89 | #66 of 125 | Buy |
| PT-141 | PT-141 10mg1 × 10 mg | $45.35 | $4.54 | #129 of 158 | Buy |
| VIP | VIP 10mg1 × 10 mg | $97.19 | $9.72 | #81 of 91 | Buy |
| Pinealon | Pinealon 10mg1 × 10 mg | $43.19 | $4.32 | #66 of 80 | Buy |
| Snap-8 | SNAP-8 10mg1 × 10 mg | $27.53 | $2.75 | #73 of 108 | Buy |
| Melanotan I | MT-1 10mg1 × 10 mg | $37.79 | $3.78 | #79 of 109 | Buy |
| LL-37 | LL-37 5mg1 × 5 mg | $83.15 | $16.63 | #94 of 102 | Buy |
| AHK-Cu | AHK-Cu 100mg1 × 100 mg | $43.19 | $0.432 | #38 of 54 | Buy |
| Thymalin | Thymalin 10mg1 × 10 mg | $45.35 | $4.54 | #51 of 62 | Buy |
| Selank + Semax | Semax + Selank Blend 20mg1 × 20 mg | $53.99 | $2.70 | #17 of 37 | Buy |
| Cerebrolysin | Cerebrolysin 60mg1 × 60 mg | $31.31 | $0.522 | #33 of 43 | Buy |
| GHK-Cu + KPV | KPV + GHK-Cu Blend 60mg1 × 60 mg · out of stock | $75.59 | $1.26 | #17 of 18 | Buy |
Price rank compares CertaPeptides's cheapest vial of each peptide with every other vendor's cheapest. Prices are read from CertaPeptides's website and may have changed. Some links are affiliate links: if you buy through one, this site may earn a commission at no extra cost to you; rankings are by price only.
CertaPeptides across independent sources
Every source we have for CertaPeptides, side by side. Tests of vials bought like a customer would weigh more than reports the vendor picked to publish. How the sources compare across all vendors. Had a CertaPeptides vial tested? Send us the report.
| Source | What it found | |
|---|---|---|
| FinnrickBuys vials anonymously and tests them | 2 tests, passed 100% (95% range 34–100%) | Finnrick page |
| Vendor's own COAsReports the vendor chose to publish | Dose 106% (middle half 98–111%, 36 reports); within ±10% of label 69% (95% range 53–82%); purity median 99.43% | Below |
| TitrateLabAggregates published COAs across labs | See their page | TitrateLab page |
CertaPeptides independent lab test results (Finnrick)
Finnrick buys vials anonymously and tests them for purity and dose. CertaPeptides scores 80% and ranks #101, with 2 of 2 tests passed; latest test 17 Jul 2026. Full record on Finnrick.
| Date | Peptide | Result |
|---|---|---|
| 17 Jul 2026 | Retatrutide | Pass |
| 17 Jul 2026 | Retatrutide | Pass |
CertaPeptides COA and lab reports
CertaPeptides publishes 40 certificates of analysis, 39 with readable numbers, from Janoshik.
| Peptide | Lab | Date | Purity | Measured vs label |
|---|---|---|---|---|
| AHK-Cu | Janoshik | 2026-09-18 | 99.12% | 94% |
| BPC-157 | Janoshik | 2026-09-18 | 99.944% | 130% |
| DSIP | Janoshik | 2026-09-18 | 99.307% | 113% |
| Epithalon | Janoshik | 2026-09-18 | 99.514% | 98% |
| Kisspeptin-10 | Janoshik | 2026-09-18 | 99.849% | 109% |
| KPV | Janoshik | 2026-09-18 | 98.786% | 119% |
| LL-37 | Janoshik | 2026-09-18 | 99.379% | 95% |
| Melanotan II | Janoshik | 2026-09-18 | 99.455% | 105% |
| Pinealon | Janoshik | 2026-09-18 | 98.094% | 106% |
| PT-141 | Janoshik | 2026-09-18 | 99.976% | 97% |
| Retatrutide | Janoshik | 2026-09-18 | 99.639% | 110% |
| Selank | Janoshik | 2026-09-18 | 99.163% | 122% |
All CertaPeptides COA documents
- AHK-Cu · Janoshik · 2026-09-18 · 99.12% pure · 94% of label View COA
- BPC-157 · Janoshik · 2026-09-18 · 99.944% pure · 130% of label View COA
- DSIP · Janoshik · 2026-09-18 · 99.307% pure · 113% of label View COA
- Epithalon · Janoshik · 2026-09-18 · 99.514% pure · 98% of label View COA
- Kisspeptin-10 · Janoshik · 2026-09-18 · 99.849% pure · 109% of label View COA
- KPV · Janoshik · 2026-09-18 · 98.786% pure · 119% of label View COA
- LL-37 · Janoshik · 2026-09-18 · 99.379% pure · 95% of label View COA
- Melanotan II · Janoshik · 2026-09-18 · 99.455% pure · 105% of label View COA
- Pinealon · Janoshik · 2026-09-18 · 98.094% pure · 106% of label View COA
- PT-141 · Janoshik · 2026-09-18 · 99.976% pure · 97% of label View COA
- Retatrutide · Janoshik · 2026-09-18 · 99.639% pure · 110% of label View COA
- Selank · Janoshik · 2026-09-18 · 99.163% pure · 122% of label View COA
- Snap-8 · Janoshik · 2026-09-18 · 99.931% pure · 108% of label View COA
- VIP · Janoshik · 2026-09-18 · 99.142% pure · 98% of label View COA
- 5-Amino-1MQ · Janoshik · 2026-09-17 · 87% of label View COA
- Retatrutide · Janoshik · 2026-09-17 · 99.268% pure · 103% of label View COA
- Retatrutide · Janoshik · 2026-09-17 · 99.427% pure · 96% of label View COA
- Retatrutide · Janoshik · 2026-09-17 · 99.502% pure · 110% of label View COA
- Retatrutide · Janoshik · 2026-09-17 · 99.422% pure · 115% of label View COA
- Cerebrolysin · Janoshik · 2026-08-06 View COA
- GHK-Cu · Janoshik · 2026-08-06 · 99.353% pure · 97% of label View COA
- GHK-Cu + KPV · Janoshik · 2026-08-06 · 96% of label View COA
- Melanotan I · Janoshik · 2026-08-06 · 99.645% pure · 96% of label View COA
- Retatrutide · Janoshik · 2026-08-06 · 99.294% pure · 106% of label View COA
- Semax · Janoshik · 2026-08-06 · 99.477% pure · 109% of label View COA
- Selank + Semax · Janoshik · 2026-08-06 · 106% of label View COA
- SS-31 · Janoshik · 2026-08-06 · 99.841% pure · 112% of label View COA
- Thymosin Alpha-1 · Janoshik · 2026-08-06 · 99.631% pure · 121% of label View COA
- Glutathione · Janoshik · 2026-08-05 · 98.76% pure · 102% of label View COA
- BPC-157 · Janoshik · 2026-07-25 · 99.623% pure · 108% of label View COA
- Epithalon · Janoshik · 2026-07-24 · 98.158% pure · 106% of label View COA
- MOTS-c · Janoshik · 2026-07-24 · 99.266% pure · 101% of label View COA
- Thymalin · Janoshik · 2026-07-24 · 99.285% pure · 116% of label View COA
- Thymosin Alpha-1 · Janoshik · 2026-07-24 · 99.672% pure · 112% of label View COA
- SS-31 · Janoshik · 2026-06-19 · 99.634% pure · 107% of label View COA
- MOTS-c · Janoshik · 2026-05-28 · 99.301% pure View COA
- Semax · Janoshik · 2026-05-28 · 98.55% pure View COA
- BPC-157 · Janoshik · 2026-04-20 · 99.036% pure View COA
- GHK-Cu · Janoshik · 2026-04-20 · 99.425% pure View COA
- Selank · Janoshik · 2026-03-31 · 99.788% pure View COA
Ordering
- Website
- certapeptides.com
- How to order
- Online checkout
- Payment
- SEPA bank transfer, Paysera instant SEPA
- Ships from
- RO
FAQ
Is CertaPeptides legit?
CertaPeptides has a Finnrick score of 80% (#101), with 2 of 2 independent lab tests passed. No red flags were found in its published COAs.
Does CertaPeptides publish COAs or lab test results?
Yes: 40 published certificates of analysis, 39 with readable numbers, from Janoshik.
Has CertaPeptides been independently lab tested?
Finnrick has tested CertaPeptides 2 times, with 2 of 2 passed.
How do you order from CertaPeptides?
Online checkout.