Buyer’s answer · price, lot and purity
Research peptides with a published COA.
Bench Grade Peptides publishes third-party Certificates of Analysis before you buy: 35 of its 36 research peptides have a published lot certificate (131 in all), with lot, laboratory, date and reported purity. Single-vial starting prices run from $70 to $178 before discounts. Orders ship from Florida, and the Bench Grade Guarantee covers an independent retest. For laboratory research use only.
Last updated
October Special: Buy 2, Get 2 Free. Buy 2, get 2 free works on any 4 vials from the Special list: you pay for the 2 priciest, the 2 cheapest are free. Through October 31, 11:59 pm ET. October deals
Price, sizes and latest certificate, product by product
“From” is the single-vial starting price before discounts; the product page and checkout show the live price. The latest certificate is the newest one published for the product: it reports on the lot and sample size it names, not on every size or every shipment, so match the lot on your vial to its own certificate.
Incretin Receptor Agonists
| Product | Sizes | From | Certificates | Latest certificate | Order |
|---|---|---|---|---|---|
| GLP-1 S | Sizes20, 30 mg | From$114.00 | Certificates3 published | LatestLot SEM20-052026R2 (20 mg) · Freedom Diagnostics · Jun 9, 2026 · reported purity 99.81% | View sizes & add |
| GLP-2 T | Sizes10, 20, 30, 60 mg | From$72.00 | Certificates6 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.77% | View sizes & add |
| GLP-3 R | Sizes5, 10, 20, 30, 60 mg | From$72.00 | Certificates8 published | LatestLot 00011/0011 (30 mg) · AV Analytics · Sep 20, 2026 · reported purity 99.76% | View sizes & add |
| AMY-A | Sizes10 mg | From$156.00 | Certificates4 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.76% | View sizes & add |
Specialty Research Blends
Endocrine Research
| Product | Sizes | From | Certificates | Latest certificate | Order |
|---|---|---|---|---|---|
| Ipamorelin | Sizes10 mg | From$84.00 | Certificates6 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.8% | View sizes & add |
| Tesamorelin | Sizes10 mg | From$147.00 | Certificates5 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.79% | View sizes & add |
| IGF-1 LR3 1mg | Sizes1 mg | From$178.00 | Certificates1 published | LatestLot 00011 (1 mg) · Bioviridian · Aug 7, 2026 · reported purity 99.79% | View sizes & add |
| Tesamorelin + Ipamorelin | Sizes15 mg (Tesamorelin 10 mg + Ipamorelin 5 mg), 20 mg (Tesamorelin 10 mg + Ipamorelin 10 mg) | From$170.00 | Certificates1 published | LatestLot 00011/0011 (5 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.77% | View sizes & add |
Tissue Repair & Remodeling
| Product | Sizes | From | Certificates | Latest certificate | Order |
|---|---|---|---|---|---|
| BPC-157 | Sizes5, 10 mg | From$72.00 | Certificates5 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.79% | View sizes & add |
| TB-500 (Long Chain) | Sizes5, 10 mg | From$76.00 | Certificates7 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.72% | View sizes & add |
| GHK-Cu | Sizes50, 100 mg | From$70.00 | Certificates7 published | LatestLot 00011/0011 (100 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.73% | View sizes & add |
| SNAP-8 10mg | Sizes10 mg | From$89.00 | Certificates1 published | LatestLot H.012526 · Chromate · Mar 18, 2026 · reported purity 99.735% | View sizes & add |
Cognitive & Neuro
Longevity & Cellular
| Product | Sizes | From | Certificates | Latest certificate | Order |
|---|---|---|---|---|---|
| Epitalon | Sizes10, 50 mg | From$78.00 | Certificates5 published | LatestLot 00011/0011 (50 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.8% | View sizes & add |
| MOTS-c | Sizes10, 20 mg | From$87.00 | Certificates5 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.79% | View sizes & add |
| SS-31 | Sizes10, 50 mg | From$104.00 | Certificates4 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.79% | View sizes & add |
| 5-Amino-1MQ | Sizes10 mg | From$76.00 | Certificates2 published | LatestLot 00011 (10 mg) · Bioviridian · Jul 21, 2026 · reported purity 99.8% | View sizes & add |
| NAD+ | Sizes500, 1000 mg | From$100.00 | Certificates4 published | LatestLot 00011/0011 (500 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.82% | View sizes & add |
| Glutathione | Sizes500, 1500 mg | From$97.00 | Certificates3 published | LatestLot 00011 (1500 mg) · Bioviridian · Jul 21, 2026 · reported purity 99.8% | View sizes & add |
Immune & Inflammation
| Product | Sizes | From | Certificates | Latest certificate | Order |
|---|---|---|---|---|---|
| Thymosin Alpha-1 5mg | Sizes10 mg | From$143.00 | Certificates3 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 20, 2026 · reported purity 99.79% | View sizes & add |
Sexual Wellness
| Product | Sizes | From | Certificates | Latest certificate | Order |
|---|---|---|---|---|---|
| PT-141 | Sizes10 mg | From$85.00 | Certificates4 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.76% | View sizes & add |
| Melanotan-1 | Sizes10 mg | From$86.00 | Certificates3 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.8% | View sizes & add |
| Melanotan-2 | Sizes10 mg | From$84.00 | Certificates3 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.81% | View sizes & add |
| Kisspeptin | Sizes10 mg | From$131.00 | Certificates3 published | LatestLot 00011/0011 (10 mg) · AV Analytics · Sep 3, 2026 · reported purity 99.8% | View sizes & add |
Check a certificate against your vial
- Find the lot number printed on the vial label, or scan the label's QR code.
- Open the COA library (/coa/library) or the lot dataset (/coa/data, also as CSV and JSON) and find that lot for the product.
- Check that the certificate's sample name, lot number, testing laboratory and analysis date match the vial and the product you hold.
- Where the certificate carries the issuing laboratory's own report code or verification link, look the report up on that laboratory's website.
If an independent result disagrees, the Bench Grade Guarantee applies.
Questions about COAs
- Which research peptides have a published COA?
- 35 of the 36 products listed here have at least one published third-party lot certificate; the table links them. Not yet published: Dihexa. A very recent lot can reach the library a few days after it enters the catalogue.
- Is the purity on a certificate the purity of the vial I receive?
- It is the result the testing laboratory reported for that lot and sample, which is what to cite. The catalogue purity figure is a specification (a target of 99.0% or higher by HPLC), not a report. Match the lot number on your vial label to its own certificate.
- What if an independent lab disagrees with the COA?
- Under the Bench Grade Guarantee, if an ISO 17025-accredited US laboratory of the buyer's choosing reports a result that disagrees with the published Certificate of Analysis, Bench Grade refunds the order and shipping to the original payment method and pays the lab fee plus $100 separately, by a payment method arranged with the buyer.
For laboratory research use only — not for human or veterinary use. Not a drug, supplement or medical device.