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Research Peptide Vendor Rankings

Global research grade peptide sources updated daily. Compare vendors worldwide by purity, service, pricing, selection, and reputation.

Only 23 of 52 evaluated peptide suppliers meet PeptideScores verification standards.

Vendors that fail to meet our standards for quality, transparency, or consistent customer feedback are not publicly listed.

Featured Vendor

Ion Peptides

Top Quality
High Purity
Verified Labs
Fast Shipping
97.9
Score

COUPON CODE

Featured Vendor

Flawless Compounds

High Purity
Verified Labs
Fast Shipping
Transparent
97.7
Score

COUPON CODE

15% Off

Top 15 Vendors

Global leaders in research peptides

Showing top 15 vendors

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Trusted & Vetted Vendor
97.9
SCORE

Ion Peptides

United States
Top Quality
High Purity
Verified Labs
Fast Shipping
3rd-Party TestedCardsAlt
Purity
100.0
Reputation
96.0
Service
96.0
Shipping
100.0
Price
93.0
Selection
100.0

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Trusted & Vetted Vendor
97.7
SCORE

Flawless Compounds

United States
High Purity
Verified Labs
Fast Shipping
Transparent
3rd-Party TestedCards
Purity
99.0
Reputation
97.0
Service
100.0
Shipping
100.0
Price
92.0
Selection
94.0

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15% Off

Trusted & Vetted Vendor
97.6
SCORE

Mile High Compounds

United States
High Purity
Verified Labs
Endotoxin Tested
Deep Data
3rd-Party TestedCardsCrypto
Purity
100.0
Reputation
100.0
Service
100.0
Shipping
100.0
Price
91.0
Selection
89.0

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Trusted & Vetted Vendor
96.3
SCORE

Glow Aminos

United States
High Purity
Verified Labs
Fast Shipping
Rising Star
3rd-Party TestedCards
Purity
99.0
Reputation
93.0
Service
97.0
Shipping
99.0
Price
91.0
Selection
95.0

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Trusted & Vetted Vendor
96.2
SCORE

Ascension Peptides

United States
Top Quality
High Purity
Verified Labs
Top Rated
3rd-Party TestedCardsAlt
Purity
100.0
Reputation
98.0
Service
98.0
Shipping
93.0
Price
87.0
Selection
92.0

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Trusted & Vetted Vendor
95.4
SCORE

Limitless Life

United States
Verified Labs
Metabolic Peptide Specialist
Specialist
3rd-Party TestedCardsCryptoAlt
Purity
98.0
Reputation
96.0
Service
97.0
Shipping
95.0
Price
80.0
Selection
100.0

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Trusted & Vetted Vendor
95.3
SCORE

Southern Aminos

United States
High Purity
Verified Labs
Endotoxin Tested
GLP-2
3rd-Party TestedCards
Purity
99.0
Reputation
92.0
Service
96.0
Shipping
99.0
Price
95.0
Selection
85.0

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Trusted & Vetted Vendor
94.5
SCORE

EZ Peptides

United States
High Purity
Verified Labs
Fast Shipping
3rd-Party TestedCards
Purity
98.0
Reputation
92.0
Service
93.0
Shipping
93.0
Price
97.0
Selection
91.0

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Trusted & Vetted Vendor
94.0
SCORE

Umbrella Labs

United States
Verified Labs
Community Fav
Legacy Brand
3rd-Party TestedCryptoAlt
Purity
97.0
Reputation
86.0
Service
95.0
Shipping
98.0
Price
87.0
Selection
100.0
Trusted & Vetted Vendor
93.8
SCORE

Core Peptides

United States
Verified Labs
Rare Peptides
Specialist
3rd-Party TestedCardsAlt
Purity
98.0
Reputation
92.0
Service
95.0
Shipping
92.0
Price
86.0
Selection
93.0

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10% off

Trusted & Vetted Vendor
93.1
SCORE

Uk-Peptides

United Kingdom
Top Quality
Verified Labs
Longest Established
Global Shipping
3rd-Party TestedCardsAlt
Purity
92.0
Reputation
95.0
Service
95.0
Shipping
93.0
Price
88.0
Selection
100.0
94.2
SCORE

Direct Peptides

EU / UK
Verified Labs
Global Shipping
EU Friendly
Export Expert
3rd-Party TestedCardsCrypto
Purity
98.0
Reputation
92.0
Service
98.0
Shipping
98.0
Price
90.0
Selection
80.0
93.0
SCORE

Blue Sky Peptide

United States
Verified Labs
Fast Shipping
Legacy Brand
3rd-Party TestedCards
Purity
98.0
Reputation
95.0
Service
95.0
Shipping
96.0
Price
77.0
Selection
83.0
92.1
SCORE

Swiss Chems

International
Verified Labs
Global Shipping
Best Value
Longest Established
3rd-Party TestedCardsCryptoAlt
Purity
96.0
Reputation
92.0
Service
91.0
Shipping
91.0
Price
91.0
Selection
85.0
90.0
SCORE

Loti Labs

United States
High Purity
Verified Labs
Metabolic Peptide Specialist
Specialist
3rd-Party TestedCardsCryptoAlt
Purity
91.0
Reputation
90.0
Service
90.0
Shipping
98.0
Price
85.0
Selection
84.0

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Global Coverage

Vendors from USA, UK, EU, Canada, Australia