Ranking November 2026 · our ranking order
Best peptide shops 2026: USA
45 shops, five criteria, one weighted score. Filter by region or click a column header to re-sort; the Rank column always keeps our overall order.
| Best offer | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | Drexa Labs drexalabs.com · vs #1 | United States | Weak | Not published | No code | |||||
| 11 | Arctic Lab Supply arcticlabsupply.com · vs #1 | United States | Weak | Not published | No code | |||||
| 12 | Maple Research Labs mapleresearchlabs.com · vs #1 | United States | Weak | Not published | No code | |||||
| 25 | Oath Research oathresearch.com · vs #1 | United States | Weak | Not published | No code | |||||
| 26 | Nextday Peptides nextdaypeptides.com · vs #1 | United States | Weak | Not published | No code | |||||
| 37 | Atomix Research atomixresearch.com · vs #1 | United States | Weak | Not published | No code | |||||
| 41 | Core Peptides corepeptides.com · vs #1 | United States | Weak | Not published | No code |
Affiliate noteSome shops on this site are affiliate partners: we earn a commission on purchases through our links, and this can influence their placement.
Detail Pros, cons & summaries
Top 7, line by line
- #10 Overall
Drexa Labs
United States · drexalabs.com · no buyer reviews yet
US supplier listed on PeptidesLookup as Verified, shipping within the USA with credit card, crypto and bank transfer. The listing claims ISO 17025 lab testing, verifiable COAs and same-day dispatch.
Pros
- Listing marked Verified
- Claims ISO 17025 lab testing with verifiable COAs
- Advertises same-day shipping
Cons
- No verified buyer reviews on PeptidesLookup yet
- No information on refunds
- Shop website not shown in the PeptidesLookup data we saw
- Purity6.6
- Transparency5.6
- Price6.0
- Shipping6.1
- Support5.5
Best offerNo code for this shopVisit drexalabs.com - #11 Overall
Arctic Lab Supply
United States · arcticlabsupply.com · no buyer reviews yet
US supplier listed on PeptidesLookup as Verified. The listing claims third-party testing with COAs and lot-matched documentation.
Pros
- Listing marked Verified
- Claims third-party tested COAs
- Claims batch verification/tracking
Cons
- No verified buyer reviews on PeptidesLookup yet
- No information on payment or refunds
- No information on shipping regions
- Purity6.6
- Transparency5.6
- Price6.0
- Shipping6.1
- Support5.5
Best offerNo code for this shopVisit arcticlabsupply.com - #12 Overall
Maple Research Labs
United States · mapleresearchlabs.com · no buyer reviews yet
Supplier listed on PeptidesLookup as Verified and based in the United States, shipping only to Canada with credit card payment. The listing claims third-party testing and batch tracking.
Pros
- Listing marked Verified
- Claims third-party tested COAs
- Claims batch verification/tracking
Cons
- No verified buyer reviews on PeptidesLookup yet
- Ships to Canada only
- Shop website not shown in the PeptidesLookup data we saw
- Purity6.6
- Transparency5.6
- Price6.0
- Shipping6.1
- Support5.5
Best offerNo code for this shopVisit mapleresearchlabs.com - #25 Overall
Oath Research
United States · oathresearch.com · no buyer reviews yet
US supplier listed on PeptidesLookup that ships within the USA and accepts credit card and bank transfer. The listing claims third-party tested COAs.
Pros
- Claims third-party tested COAs
- Ships within the USA
Cons
- No verified buyer reviews on PeptidesLookup yet
- Verification badge differs between PeptidesLookup pages
- Shop website not shown in the PeptidesLookup data we saw
- Purity6.1
- Transparency5.1
- Price5.5
- Shipping5.6
- Support5.0
Best offerNo code for this shopVisit oathresearch.com - #26 Overall
Nextday Peptides
United States · nextdaypeptides.com · no buyer reviews yet
US supplier listed on PeptidesLookup that ships within the USA. The listing claims third-party testing, COA availability and fast shipping.
Pros
- Claims third-party tested COAs
- Ships within the USA
Cons
- No verified buyer reviews on PeptidesLookup yet
- No information on payment or refunds
- Shop website not shown in the PeptidesLookup data we saw
- Purity6.1
- Transparency5.1
- Price5.5
- Shipping5.6
- Support5.0
Best offerNo code for this shopVisit nextdaypeptides.com - #37 Overall
Atomix Research
United States · atomixresearch.com · no buyer reviews yet
US supplier listed on PeptidesLookup that ships within the USA. The listing claims 99%+ purity, US manufacturing, GMP and COA availability.
Pros
- Claims purity above 99%
- Claims GMP standards
- States COA available
Cons
- No verified buyer reviews on PeptidesLookup yet
- No information on payment or refunds
- Shop website not shown in the PeptidesLookup data we saw
- Purity5.3
- Transparency4.7
- Price5.1
- Shipping5.2
- Support4.6
Best offerNo code for this shopVisit atomixresearch.com - #41 Overall
Core Peptides
United States · corepeptides.com · no buyer reviews yet
US supplier listed on PeptidesLookup that ships within the USA and accepts credit cards. The listing mentions cGMP facilities and quality control testing but is marked Not verified.
Pros
- Ships within the USA
- Claims cGMP manufacturing
Cons
- No verified buyer reviews on PeptidesLookup yet
- Listing marked Not verified
- No public lab reports linked
- Purity4.8
- Transparency4.2
- Price4.6
- Shipping4.7
- Support4.1
Best offerNo code for this shopVisit corepeptides.com