US Peptide Vendor Comparison
A community-aggregated overview of US-based peptide suppliers. Data is based on publicly available information and community feedback from forums like Reddit.
Important disclaimer
This comparison is based on aggregated community feedback from public forums. Research Stack does not independently verify vendor claims, test products, or endorse any supplier. Featured vendors (★) have provided information directly — exercise independent judgment. Always verify independently before purchasing.
| Vendor | Location | COA | 3rd-Party Testing | Shipping | Price | Support |
|---|---|---|---|---|---|---|
| USA | 2–5 business days | $$ | Email + live chat | |||
| USA | 2–4 business days | $$ | ||||
| USA | 2–5 business days | $$ | ||||
| USA | 3–7 business days | $ | ||||
| USA | 3–6 business days | $$ | ||||
| International (ships to USA) | 7–14 business days (international) | $ |
- Location
- USA
- COA Available
- ✓ Yes
- 3rd-Party Testing
- ✓ Yes
- Shipping
- 2–5 business days
- Price
- $$
USA-based supplier focused on purity transparency and domestic shipping. Lab reports available on request.
- Location
- USA
- COA Available
- ✓ Yes
- 3rd-Party Testing
- ✓ Yes
- Shipping
- 2–4 business days
- Price
- $$
Established US supplier with a broad peptide catalog. Third-party HPLC testing certificates available for most products.
- Location
- USA
- COA Available
- ✓ Yes
- 3rd-Party Testing
- ✓ Yes
- Shipping
- 2–5 business days
- Price
- $$
Community-vetted supplier with focus on testing transparency. Active presence in r/Peptides discussions.
- Location
- USA
- COA Available
- ✓ Yes
- 3rd-Party Testing
- ✗ No
- Shipping
- 3–7 business days
- Price
- $
Budget-friendly option. COAs provided but third-party testing protocols are less consistent than premium suppliers.
- Location
- USA
- COA Available
- ✓ Yes
- 3rd-Party Testing
- ✓ Yes
- Shipping
- 3–6 business days
- Price
- $$
US-based supplier with a clean product catalog. COAs and third-party HPLC testing available. Community feedback positive on order accuracy and packaging.
- Location
- International (ships to USA)
- COA Available
- ✓ Yes
- 3rd-Party Testing
- ✓ Yes
- Shipping
- 7–14 business days (international)
- Price
- $
International supplier with competitive pricing. Shipping times longer due to overseas origin. Community feedback is generally positive on purity.
Vendor notes
Legend:
★ Featured — vendor has provided information directly to Research Stack.
$ = budget · $$ = mid-range · $$$ = premium
Know of a vendor that should be listed? Community submissions coming soon.