Peptide Vendors in United States (2026)
This directory tracks 21 research-peptide vendors that ship to United States. 21 are based in United States; the rest dispatch from the wider EU or UK.
At a glance
- 21 of 21 vendors are based in United States; all 21 ship there.
- Most vendors claim HPLC testing; several name a third-party lab or hold ISO/GMP certification.
- We sell nothing and route no purchases. Ratings here are third-party signals, not our own.
Regulatory context: In the US, most research peptides are not FDA-approved for human use and may only be sold labelled "for research use only". Compounded semaglutide/tirzepatide availability has shifted with FDA shortage-list changes. Confirm current status with the FDA before relying on any source. This is neutral context, not legal advice or a purchase recommendation.
How to read this page: Trustpilot ratings are external, third-party figures shown with a link to the source. Purity percentages and certifications are vendor claims unless supported by an independent batch COA. Verify a current certificate before relying on any source.
Vendor profiles
Sorted by reviews by default (best Trustpilot rating first). Use the controls to sort by catalogue size or name, filter by location, or search a specific peptide. Sorting uses external Trustpilot data and is not an endorsement.
USA (San Diego, California)
Established US peptide-only vendor (trusted since 2019); RUO labeling stated.
USA
Says it has served the research community over 7 years (~2017); 100+ peptide catalog.
USA
Broad US-made research-chemical catalog (peptides + nootropics); RUO labeling.
USA
Positioned as an analytically rigorous supplier; 60+ peptides.
USA
US-facility peptide vendor with strong on-site testing claims.
USA (Sevierville, Tennessee)
Tennessee-based lab-research peptide vendor.
USA (Colorado)
Colorado-based; multiple delivery formats.
USA (Oxnard, California)
California-based peptide vendor.
USA (Scottsdale, Arizona)
Testing-forward Arizona vendor, online since ~late 2024; injectable vials.
USA (Knoxville, Tennessee)
Large multi-category research-compound catalog; COA-consistency feedback is mixed.
USA (Shelton, Connecticut)
SARMs-first Connecticut vendor that also carries peptides.
USA (Massachusetts address listed)
Broad peptide/SARM/nootropic catalog; multiple domain variants and mixed community reputation.
USA (Wyoming)
USA-made multi-category vendor (SARMs + peptides + prohormones); established 2014.
USA
Long-standing peptide/research-liquid storefront; limited transparency on testing.
USA (Gaston, Indiana)
Indiana-based; homepage stresses strict RUO (not for human or animal use).
USA
Homepage was bot-blocked; details corroborated via search-indexed site content.
USA (Florida)
Family-owned Florida vendor.
USA (Florida)
Rebranded from Limitless Life Nootropics to Limitless Biotech.
USA (Burlingame, California)
Long-established (1994) scientific peptide manufacturer for labs/institutions.
How do the United States peptide vendors compare?
The same 21 vendors in a sortable overview. Order follows the controls above; it is not an endorsement.
| Vendor | Base | Trustpilot | Peptides (est.) | |
|---|---|---|---|---|
| Biotech PeptidesUS | USA (San Diego, California) | — | 8+ | Profile |
| Core PeptidesUS | USA | — | 7+ | Profile |
| Modern AminosUS | USA | — | 7+ | Profile |
| Loti LabsUS | USA | — | 11+ | Profile |
| AminoVaultUS | USA | — | 5+ | Profile |
| PeptiraUS | USA (Chadron, Nebraska) | — | Curated range | Profile |
| Nationwide PeptidesUS | USA (Sevierville, Tennessee) | — | 8+ | Profile |
| Ascension PeptidesUS | USA (Colorado) | — | 8+ | Profile |
| Apollo Peptide SciencesUS | USA (Oxnard, California) | — | 8+ | Profile |
| GenX BioUS | USA | — | 8+ | Profile |
| PeptidologyUS | USA (Scottsdale, Arizona) | — | Curated range | Profile |
| PureRawzUS | USA (Knoxville, Tennessee) | — | Curated range | Profile |
| Sports Technology LabsUS | USA (Shelton, Connecticut) | — | 7+ | Profile |
| Swiss ChemsUS | USA (Massachusetts address listed) | — | 7+ | Profile |
| Behemoth LabzUS | USA (Wyoming) | — | 10+ | Profile |
| Blue Sky PeptideUS | USA | — | 6+ | Profile |
| Research Ready PeptidesUS | USA (Gaston, Indiana) | — | Curated range | Profile |
| Apex Lab PeptidesUS | USA | — | Curated range | Profile |
| Research Peptide LabsUS | USA (Florida) | — | Curated range | Profile |
| Limitless BiotechUS | USA (Florida) | — | 6+ | Profile |
| Phoenix PharmaceuticalsUS | USA (Burlingame, California) | — | 4+ | Profile |
Trustpilot figures are external third-party data, linked to source. A dash means no numeric Trustpilot profile was found at research time. On-site aggregate ratings are separate and require five moderated reviews.
United States peptide vendors: FAQ
This page tracks 21 vendors that ship to United States. 21 are based in United States; the rest dispatch from the wider EU or UK. Each listing links to the vendor's own site and certificates.
Disclaimer: peptide legality and import rules in United States can change. This page is neutral context, not legal advice or a purchase recommendation, and not an endorsement of any vendor. Research peptides are sold for laboratory research only and are not for human consumption. Consult the official regulator and a qualified professional.