Peptide vendors compared by price and reviews
Peptide Library tracks 58 research peptide vendors and 14 community reviews. Each profile below lists that vendor's catalogue with price per mg, so you can compare the same peptide across suppliers. Research use only. Not medical advice.
Ratings average verified and unverified reviewer scores — see how rankings work. Peptide Library does not sell peptides and is not a storefront. Some vendors are affiliate partners; we may earn a commission on qualifying purchases at no extra cost to you.
All vendors (58)
1. Peptide Titans
5.0 out of 5 from 4 reviews, 3 verified
Peptide Titans is a U.S.-based supplier of research-only peptides. Every batch is independently third-party tested to confirm a minimum purity of 99%, with batch-verified COAs. They partner with established manufacturers and accredited laboratories for pharmacology, metabolic biology, endocrinology, and related research. Products are not for human consumption. Secure, trackable U.S. shipping with discreet packaging.
2. Platinum Lion Peptides
5.0 out of 5 from 3 reviews
Platinum Lion Peptides offers 99%+ purified research peptides including BPC-157, GHK-Cu, TB-500, MOTS-c, and KLOW. Each batch is third-party tested, HPLC-analyzed with a Certificate of Analysis. US-based with FedEx 2-Day Air, same-day shipping for orders before 1PM PST Mon–Sat, free shipping over $250, and 30-day returns. For research use only.
3. Instant Peptides
5.0 out of 5 from 1 review, 1 verified
No Delays. No Drama. Just Peptides. Ultra-fast U.S. shipping and uncompromising quality you can trust. Free delivery on orders of $200 or more. Fast 2-day shipping via FedEx. Fast-friendly support with real human interaction.
4. BioLongevity Labs
5.0 out of 5 from 1 review, 1 verified
Premium research peptides for longevity and wellness research. High-quality products with quality assurance and reliable service for scientific research needs.
5. Limitless Biotech
5.0 out of 5 from 1 review, 1 verified
The Highest Quality USA-Made Research Peptides. All research peptides offered by Limitless Biotech are manufactured within the United States. USA-made peptides are subject to stringent quality control measures. The manufacturing teams dedicate careful attention to ensuring the peptides are devoid of contaminants and impurities. Adherence to the latest Good Manufacturing Practices is a priority, with thorough sanitization processes integrated at each stage of production. American facilities employ some of the most sophisticated methods in peptide synthesis, including advanced solid-phase techniques and state-of-the-art procedures for cleavage and purification post-synthesis, contributing to the superior quality of the peptides.
6. EZ Peptides
5.0 out of 5 from 1 review, 1 verified
EZ Peptides is a U.S.-based supplier of high-quality peptides for laboratory research. We are committed to providing consistently tested compounds, verified by independent laboratories to support quality assurance and integrity in research environments. Each batch is third-party tested and Certificates of Analysis (COAs) are available for every batch.
7. Amino Club
5.0 out of 5 from 1 review
Amino Club is a U.S.-based peptide research supplier committed to quality and transparency. We source from GMP-compliant manufacturers and conduct independent third-party testing on every batch at accredited American laboratories. Every product is guaranteed 99%+ pure with full Certificates of Analysis included. Same-day fulfillment available for orders placed before 2PM EST.
8. Perfect Peptides
5.0 out of 5 from 1 review
Perfect Peptides is a trusted USA-based supplier of third-party tested peptides for research use only. We proudly serve laboratories, academic institutions, and professional researchers across the U.S. who rely on our unwavering commitment to quality, safety, and transparency. Every peptide we offer is independently tested to ensure it meets strict standards for identity and purity.
9. LA Peptides
5.0 out of 5 from 1 review, 1 verified
High-Purity Research Peptides for Advanced Scientific Exploration. Rigorously Tested for Purity and Precision. Every batch undergoes third-party testing to ensure a minimum purity of 99%, providing researchers with consistent, reliable compounds for accurate scientific study. Made in the USA. Fast, discreet U.S. shipping with secure, trackable delivery. Dedicated support for researchers.
10. Licensed Peptides
No reviews yet
High-purity research peptides from USA. Quality-assured products with reliable shipping and customer support for scientific research needs.
11. Mile High Compounds
No reviews yet
Mile High Compounds is dedicated to providing high-quality research peptides with a commitment to purity and excellence. We offer a comprehensive selection of research-grade compounds to support your scientific endeavors.
12. Modified Aminos
No reviews yet
Modified Aminos is a U.S.-based company. All products are manufactured, synthesized, tested, and shipped entirely within the mainland United States. Batch and lot tracking with QR code verification; minimum 99% purity. COAs from independent third-party testing (e.g. Freedom Diagnostics). Same-day shipping for orders before 2:00 PM CST; 24/7 US support; GMP-aligned processes. Capsules and sprays for research use only.
13. Trifecta Peptides
No reviews yet
High quality research peptides, made in the USA, tested and verified 99%+ pure. Quality Verified Peptides - Always USA made, always over 99% pure. Fast shipping, high quality products, and dedicated customer support.
14. Real Peptides
No reviews yet
High-purity research peptides with independent lab verification. ISO-certified manufacturing, tested to ≥99% purity. Precision crafted compounds trusted by researchers seeking uncompromised quality.
15. ModFit Supps
No reviews yet
Research supplements and peptides for scientific research. Quality products with reliable shipping and customer support.
16. RetaOne Labs
No reviews yet
RetaOne Labs provides research-grade retatrutide with uncompromising quality standards. Lab-tested 99%+ purity with comprehensive 5-point analysis including endotoxin testing, sterility verification, heavy metal screening, fentanyl & adulterant testing, and high-purity analysis. Every batch undergoes rigorous testing including HPLC, mass spectrometry, and purity analysis. Trusted by researchers worldwide for high-grade peptides. Fast, discreet shipping with SSL secure checkout and dedicated research support.
17. Felix Chemical Supply
No reviews yet
Research peptides with super fast UPS delivery. Free shipping on orders over $500. 10% off first order with code FELIX10. Multiple payment options. 4.9/5 rating.
18. Iron Peptides
No reviews yet
99%+ purity peptides from FDA-registered cGMP labs. HPLC/MS tested, COA-verified. Fast next-day shipping with free shipping over $300.
19. Celia Health
No reviews yet
Precision peptide and genetics-driven longevity programs that start with at-home DNA testing, then layer personalized peptide stacks, consultative care, and science-backed protocols to deliver 98% long-lasting results.
20. Nura Peptide
No reviews yet
Premium research peptides for scientific research. High-quality products with quality assurance and reliable service for your research needs.
21. Amino Innovations
No reviews yet
Renew from Within. Perform Without Limits. No injections. No prescriptions. No compromise. Just Peptides That Work. Powerful, clinically tested peptide therapy formulations that deliver targeted repair, enhanced performance, and total body optimization without relying on invasive delivery systems. Peptides, Reimagined.
22. Integrative Peptides
No reviews yet
Clean formulations, transparent sourcing, and straightforward access for high-quality, research-grade peptides. Offers 10% off first order.
23. Glow Aminos
No reviews yet
Glow Aminos offers high-quality research peptides. All products are sold in powder (lyophilized) form and require reconstitution with a suitable diluent for research purposes only.
24. APR Health Solutions
No reviews yet
At APR Health Solutions, we are dedicated to advancing wellness research and development to improve patient outcomes. Our mission is to innovate and deliver groundbreaking solutions at affordable prices. We offer premium research peptides, supplements, and research products with free shipping on orders over $250 to North America and Hawaii.
25. Apollo Peptide Sciences
No reviews yet
Exceptional peptides known for purity and affordability, always third-party tested. Verifiable purity with COAs available. Orders typically ship within 48 hours using USPS Priority or Express shipping. Free shipping on orders over $200. Complete satisfaction guarantee with superior customer support. US-based company committed to advancing scientific research.
26. Mindful Research
No reviews yet
The premier source for high purity research compounds. Mindful Research provides uncompromising quality with third-party tested compounds, certified purity levels, and complete transparency. Third-party test results for purity, content, endotoxin and/or sterility are available on every product page. Shipping available to USA & Canada. All products are sold only as research chemicals for in vitro research, laboratory testing & analytical purposes only.
27. Oasis Labs
No reviews yet
Oasis Labs – Where Science Meets Serenity. Premium research peptides for scientific research needs. High-quality products with quality assurance and reliable service for your research applications.
28. Platinum Peptides
No reviews yet
Premium U.S. based research peptides. Pure. Proven. Trusted. All peptides are based in U.S. and 3rd party tested in the U.S.A. Fast shipping - orders placed by 12 PM MST, Monday through Friday, ship the same day. Free 2-day shipping on orders over $250.
29. Flawless Compounds
No reviews yet
Flawless Compounds offers premium research peptides from New York, NY. We provide high-quality lyophilized peptides for in vitro research, analytical, and laboratory purposes. FREE Ground Shipping on Orders $150+. FREE 2-Day Shipping on Orders $500+. Now shipping internationally to select countries. Our products include BPC-157, Cagrilintide, CJC-1295+Ipamorelin, GHK-CU, GLOW Blend, and a comprehensive selection of research-grade peptides.
30. Silverstone Labs Co
No reviews yet
Silverstone Labs Co provides precision-verified research compounds including Retatrutide and Tirzepatide for laboratory research. Every compound is independently tested by accredited third-party laboratories with batch-specific Certificates of Analysis available prior to purchase. Each batch is verified for identity, purity, and quality. All products are shipped from the U.S.A. and intended for research use only. We believe transparency is foundational, not optional.
31. Refillpen
No reviews yet
Reusable refillable injectable pens engineered specifically for the peptide community. These dosing pens boast a sleek, intuitive design that simplifies the peptide preparation process, ensuring quick and hassle-free setup directly from your peptide vial. Engineered for simplicity and accurate, variable dosing, each pen offers a seamless injection experience with vibrant, eye-catching colors. Also offers storage boxes for vials, cartridges, and accessories. Free shipping on orders over $49. Fast shipping within 2-3 business days via USPS. Trusted by 5,000+ users.
32. Wellness Peptides
No reviews yet
At Wellness Peptides, our mission is simple: to support scientific advancement by providing researchers with high-purity, rigorously tested peptides. Founded by a team of scientists and health industry professionals, we recognized a need for reliable, research-grade compounds that meet the highest standards of consistency, compliance, and transparency. All peptides are synthesized and tested in certified U.S. laboratories, adhering to industry-leading standards for cleanliness and consistency. We offer same or next-day processing with discreet, secure packaging. Free U.S. shipping is available on all orders over $150.
33. Solution Peptides
No reviews yet
Solution Peptides is a U.S.-based research peptide supplier located in South Florida, providing high-quality research-grade peptides for laboratory use. We are committed to offering reliable products for scientific research applications. All products are intended for research use only and are shipped from our U.S. facility.
34. Peptides.gg
No reviews yet
Premium Research Peptides USA - 99%+ Purity, 3rd Party Lab Tested, Same Day Shipping. Peptides.gg is dedicated to providing high-quality research peptides with transparent testing and fast shipping.
35. Southern Aminos
No reviews yet
The West Coast Leader in Peptide Innovation. Southern Aminos is your West Coast source for premium-quality, third-party tested research compounds. We take pride in offering the highest quality products, transparent practices, and fast U.S. shipping you can count on. Free USPS Priority Shipping over $250. Third-Party U.S. Lab COAs with batch numbers, QR Codes, Mass/Purity on vials. Package Protection from facility to doorstep.
36. Particle Peptides
No reviews yet
3rd party tested peptides, 10 years on market. GMP-approved manufacturer, ISO 9001/ISO 13485 compliant. EU shipping. Trusted by 7,000+ customers with 4.9/5 rating.
37. Royal Peptides
No reviews yet
99%+ purity peptides validated by 3rd party HPLC testing. GMP-certified labs, same-day USA shipping, expert support, competitive pricing.
38. Paramount Peptides
No reviews yet
99%+ pure peptides made in USA. Fast next-day shipping. Free shipping on orders over $300. In-house and third-party tested with HPLC/MS analysis.
39. M5 Research Peptides
No reviews yet
Fast shipping within 1 business day, many same-day. 3rd party tested products with >99% purity. Excellent customer service with licensed pharmacist support.
40. TruLab Peptides
No reviews yet
99%+ pure research peptides with rigorous lab testing. Free priority shipping on orders over $100. 90-day returns. US-based with 4.5/5 rating.
41. Alpha BioMed Labs
No reviews yet
At Alpha BioMed Labs, we manufacture and supply research-grade peptides designed for laboratory and institutional studies, ensuring analytical consistency and verified purity for controlled applications. Founded in 2016, Alpha BioMed Labs expands awareness of and access to verified, U.S.-manufactured research peptides to support integrity and reproducibility in scientific studies. All products are third-party tested, manufactured in the USA for laboratory research and analytical applications. Guaranteed 99%+ Purity, independently verified by Janoshik and Shimadzu.
42. Peptide Shop
No reviews yet
Premier supplier of premium-grade research peptides. Partners with WHO/GMP and ISO 9001:2008 approved manufacturers ensuring best prices without compromising quality. Same-day shipping if payment received by 3 PM CST. Free shipping on orders over $250 USD (domestic) or $500 USD (worldwide). All peptides guaranteed 99% pure with rigorous quality checks.
43. Atomik Labz
No reviews yet
Atomik Labz is a USA-based research peptide supplier offering lab-tested peptides with Certificates of Analysis, same-day shipping, and free shipping over $399. All products are for research use only and shipped in 3mL glass vials. Every peptide is tested in the lab for purity with batch-specific COAs available.
44. PeptiPen
No reviews yet
Experience precision and sustainability with our refillable pens—designed for accuracy, convenience, and a greener future. PeptiPen offers reusable refillable injectable pens and glass cartridges specifically designed for the peptide community.
45. Penguin Peptides
No reviews yet
Advancing Research, Empowering Discovery. Precision. Quality. Reliability. Your Trusted Source for Research-Grade Peptides. At Penguin Peptides, we specialize in supplying high-purity peptides and research compounds for laboratory use. Our mission is to empower scientific innovation by providing reliable, lab-tested products to researchers, academic institutions, and biotech professionals worldwide. With a commitment to quality and compliance, we offer fast shipping, transparent sourcing, and competitive pricing—ensuring your research is always a step ahead. All products are rigorously tested through 1st and 3rd party verification. Fast and reliable shipping with 24/7 online customer support. Satisfaction guaranteed.
46. Triantex
No reviews yet
Triantex specializes in high-purity peptides (99% purity guaranteed) strictly intended for research use only (RUO). All products undergo blind and independent third-party testing to ensure unmatched quality and reliability. Formulated for precision, purity, and scientific progress. Free shipping in the US for orders $200+. Orders processed same day or next business day, shipped via FedEx 2-Day Air and UPS 2-Day Air.
47. Kaia Peptides
No reviews yet
Research-grade peptides for scientific exploration. High-purity compounds (99%+ purity) designed for laboratory, educational, and research use. Delivered with transparency, integrity, and precision. All products are independently verified for purity and identity through third-party laboratory testing (Freedom Diagnostics, Tennessee, USA). Manufactured in GMP-compliant facilities. Free shipping on all domestic orders over $250. Rapid shipping - all verified research orders placed before 12 PM EST ship the same business day. Products are for research, educational, and wellness-optimization purposes only - not for diagnostic or therapeutic use.
48. Premier Research
No reviews yet
U.S.-based licensed distributor of premium research peptides. Third-party tested for quality and purity. Research use only. Not for human consumption. Premier Research LLC specializes in providing high-quality research peptides for laboratory use. All products are intended solely for in-vitro laboratory research by qualified professionals and are NOT intended for human or animal use of any kind.
49. Ameano Peptides
No reviews yet
Premium-grade research peptides backed by science. Every peptide is produced in a stringent quality-controlled laboratory and undergoes independent third-party testing to ensure ≥ 99% purity and consistency in every batch. All products include a Certificate of Analysis (COA) and are manufactured under rigorous quality control protocols for laboratory research use only. Fast shipping with orders placed before 2 PM EST shipping the same day.
50. Ignite Peptides
No reviews yet
At Ignite Peptides, we provide a secure and reliable way to source high-quality research peptides online. As a trusted U.S.-based peptide supplier, we focus on lab-verified products, full transparency, and consistent quality. With fast shipping and responsive support, we're committed to advancing safe, dependable research you can trust.
51. Pantheon Peptides
No reviews yet
Highest-purity research peptides rigorously tested. Fast temperature-controlled shipping in 3-5 days. Dedicated customer service with secure SSL-encrypted shopping.
52. Ascension Peptides
No reviews yet
High purity research peptides. Third-party tested with 99%+ purity guarantee. Dedicated to providing top-tier, high-quality research peptide products.
53. Thryve Peptides
No reviews yet
99% Purity GUARANTEE: 3rd Party COAs. Crafted in Irvine, California; dedicated to providing premium, research-grade peptides. Our mission is simple: deliver transparency and quality you can trust! Every batch is third-party tested, and results are published openly — never hidden. Whether you're exploring cutting-edge science or seeking a reliable research partner, Thryve aims to be your one-stop source for consistent, research-grade excellence.
54. Peptides Warehouse
No reviews yet
Peptides Warehouse offers research peptides, SARMs, and chemicals for research use only. BOGO (Buy 1 Get 1 Free) with code BOGO. Payment options include Venmo, Apple Pay, G-Pay, Bitcoin, and Cash App. Order tracking and FAQ available.
55. Peptide Labs X
No reviews yet
Quality-driven research peptides manufactured in GMP-compliant labs in the USA. Every batch tested for over 99% purity with certificates of analysis. Fast next business day shipping with free shipping on orders $300+. Product quality guarantee with HPLC testing refund policy.
56. Glacier Aminos
No reviews yet
98%+ pure aminos, third-party lab-tested, made in USA. Fast next-day shipping. Free 2-day air on orders over $250. Transparency with batch numbers and QR codes.
57. American Peptide Research
No reviews yet
99% purity guaranteed with verified batch reports. Pharma quality peptides with every batch tested. Free shipping on orders over $199. Fast 2-4 day USA delivery. Secure payment options available.
58. Tydes
No reviews yet
Members-only research peptide vendor dedicated to providing high-quality research compounds. All US domestic orders are shipped within one business day upon receipt of payment via USPS Priority with tracking and insurance. Lab results available for transparency. Research hub for scientific information. US domestic shipping only.
How this vendor list is ordered
Vendors are ranked by a popularity score built from review volume, recent review activity and outbound clicks — not by how much a vendor pays. 9 of 58 vendors currently carry at least one review. Affiliate status never changes a vendor's position.
What price per mg means
Price per mg is the listed vial price divided by the vial's milligrams, when the vial size is known. It makes a 5 mg vial comparable to a 10 mg one. It is a comparison aid, not a price you pay Peptide Library — we do not sell peptides.
Filter and search vendors
The interactive vendor list adds search, rating filters and sorting. To compare a single peptide across every vendor, open its profile in the peptide library.