Peptide Vendor Comparison 2026
Side-by-side comparison of the top-rated peptide vendors worldwide. Every supplier is scored on affordability, quality, shipping speed, and customer service based on community feedback and verified testing data.
All Vendors at a Glance
Sorted by overall score. Click a vendor to visit their site.
Aussie Peptides
🇦🇺 AustraliaPEPFYI10Ascension Peptides
🇺🇸 United StatesPEPTIDESFYPeptides UK
🇬🇧 United KingdomApollo Peptide Sciences
🇺🇸 United StatesCanada Peptide
🇨🇦 Canada🇦🇺 Best Peptide Vendors in Australia (2026)
1 rated vendor in Australia.
Aussie Peptides
🇦🇺 AustraliaPEPFYI10🇺🇸 Best Peptide Vendors in United States (2026)
2 rated vendors in United States.
Ascension Peptides
🇺🇸 United StatesPEPTIDESFYApollo Peptide Sciences
🇺🇸 United StatesAscension Peptides vs Apollo Peptide Sciences
| Category | Ascension Peptides | Apollo Peptide Sciences |
|---|---|---|
| Overall | 4.5/5 | 4.3/5 |
| Affordability | 4/5 | 4/5 |
| Quality | 5/5 | 5/5 |
| Shipping | 5/5 | 4/5 |
| Service | 4/5 | 4/5 |
| Purity | 99%+ (third-party COA verified) | 99%+ (third-party COA verified) |
| Shipping | 1–3 days US domestic | Ships within 48 hours, USPS Priority |
| Coupon | PEPTIDESFY | n/a |
🇬🇧 Best Peptide Vendors in United Kingdom (2026)
1 rated vendor in United Kingdom.
Peptides UK
🇬🇧 United Kingdom🇨🇦 Best Peptide Vendors in Canada (2026)
1 rated vendor in Canada.
Canada Peptide
🇨🇦 CanadaHow We Rate Vendors
Affordability
Price per mg compared to the market average. Higher rating = better value for money.
Quality
Purity testing (HPLC, mass spec), third-party CoA availability, and consistency across batches.
Shipping
Dispatch speed, delivery times, packaging quality, and cold-chain handling.
Service
Customer support responsiveness, returns policy, and overall communication quality.
Frequently Asked Questions
What is the best peptide vendor in 2026?
The best vendor depends on your region. In Australia, Aussie Peptides scores highest for quality and shipping and is our current AU-domestic pick. In the US, Ascension Peptides and Apollo Peptide Sciences are top-rated. All vendors listed here have third-party purity testing.
How do I choose between peptide vendors?
Compare vendors on four key factors: purity testing (look for third-party CoAs), shipping speed to your region, price per mg, and customer service reputation. Our ratings above cover all four.
Are there peptide vendor coupon codes available?
Yes. Some vendors offer exclusive discount codes. Currently available: PEPFYI10 for 10% off at Aussie Peptides and PEPTIDESFY for a discount at Ascension Peptides. Codes are shown in the comparison table above.
Base Peptides has closed. What should Australian buyers use instead?
Base Peptides ceased trading in August 2026 and its store is permanently closed. Existing orders were still being fulfilled at the time of the announcement. For an AU-domestic replacement, our current pick is Aussie Peptides: 99%+ third-party tested purity, 5/5 across all our rating categories, fast domestic shipping, and a 10% discount code (PEPFYI10). See our full breakdown at Base Peptides alternatives.
Disclaimer: Vendor ratings are based on community feedback and publicly available information. They are not endorsements or paid placements. peptides.fyi does not sell peptides and has no financial relationship with any vendor listed beyond affiliate partnerships which are clearly disclosed. Always verify third-party certificates of analysis (CoA) independently. Check your local regulations regarding peptide purchase and use.