49 suppliers scored7 FDA warning letters tracked8 closures on recordUpdated October 2026 · How scoring works
Peptide Ranking

Compare two suppliers

Pick a supplier to see every comparison we publish for it. Each page puts the two fact sheets and score breakdowns side by side.

Licensed Peptides (81/100, 48 comparisons)

vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse · vs Blue Sky Peptide · vs Prime Peptides · vs Swiss Chems · vs Umbrella Labs · vs Loti Labs · vs QSC · vs Receptor Chem · vs NuScience Peptides · vs Geo Peptides · vs Extreme Peptides · vs UK Peptides · vs Direct Peptides · vs American Research Pens · vs Enhanced Peptides · vs PureRawz · vs Xcel Peptides · vs Peptide Crafters · vs Amino Asylum · vs Atomik Labz · vs Pharma Grade Peptides · vs Research Peptides · vs Trident Peptide UK · vs US Peptides · vs Polaris Peptides · vs Elite Peptides · vs USA Peptides · vs Skye Peptides · vs Eternal Peptides · vs Modern Aminos

Core Peptides (78/100, 48 comparisons)

vs Licensed Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse · vs Blue Sky Peptide · vs Prime Peptides · vs Swiss Chems · vs Umbrella Labs · vs Loti Labs · vs QSC · vs Receptor Chem · vs NuScience Peptides · vs Geo Peptides · vs Extreme Peptides · vs UK Peptides · vs Direct Peptides · vs American Research Pens · vs Enhanced Peptides · vs PureRawz · vs Xcel Peptides · vs Peptide Crafters · vs Amino Asylum · vs Atomik Labz · vs Pharma Grade Peptides · vs Research Peptides · vs Trident Peptide UK · vs US Peptides · vs Polaris Peptides · vs Elite Peptides · vs USA Peptides · vs Skye Peptides · vs Eternal Peptides · vs Modern Aminos

Ascension Peptides (76/100, 48 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse · vs Blue Sky Peptide · vs Prime Peptides · vs Swiss Chems · vs Umbrella Labs · vs Loti Labs · vs QSC · vs Receptor Chem · vs NuScience Peptides · vs Geo Peptides · vs Extreme Peptides · vs UK Peptides · vs Direct Peptides · vs American Research Pens · vs Enhanced Peptides · vs PureRawz · vs Xcel Peptides · vs Peptide Crafters · vs Amino Asylum · vs Atomik Labz · vs Pharma Grade Peptides · vs Research Peptides · vs Trident Peptide UK · vs US Peptides · vs Polaris Peptides · vs Elite Peptides · vs USA Peptides · vs Skye Peptides · vs Eternal Peptides · vs Modern Aminos

Paramount Peptides (76/100, 48 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse · vs Blue Sky Peptide · vs Prime Peptides · vs Swiss Chems · vs Umbrella Labs · vs Loti Labs · vs QSC · vs Receptor Chem · vs NuScience Peptides · vs Geo Peptides · vs Extreme Peptides · vs UK Peptides · vs Direct Peptides · vs American Research Pens · vs Enhanced Peptides · vs PureRawz · vs Xcel Peptides · vs Peptide Crafters · vs Amino Asylum · vs Atomik Labz · vs Pharma Grade Peptides · vs Research Peptides · vs Trident Peptide UK · vs US Peptides · vs Polaris Peptides · vs Elite Peptides · vs USA Peptides · vs Skye Peptides · vs Eternal Peptides · vs Modern Aminos

Sports Technology Labs (74/100, 48 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse · vs Blue Sky Peptide · vs Prime Peptides · vs Swiss Chems · vs Umbrella Labs · vs Loti Labs · vs QSC · vs Receptor Chem · vs NuScience Peptides · vs Geo Peptides · vs Extreme Peptides · vs UK Peptides · vs Direct Peptides · vs American Research Pens · vs Enhanced Peptides · vs PureRawz · vs Xcel Peptides · vs Peptide Crafters · vs Amino Asylum · vs Atomik Labz · vs Pharma Grade Peptides · vs Research Peptides · vs Trident Peptide UK · vs US Peptides · vs Polaris Peptides · vs Elite Peptides · vs USA Peptides · vs Skye Peptides · vs Eternal Peptides · vs Modern Aminos

Koi Peptides (72/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Alpha Peptides (71/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Evolve Peptides (71/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

BioLongevity Labs (70/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Pure Peptide Labs (70/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Peptide Perfection (69/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Simple Peptide (69/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Alpha Labs Peptides (68/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Biotech Peptides (66/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Peptide Pros (66/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Verified Peptides (66/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Limitless Biotech (65/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Liberty Peptides · vs Nexaph · vs Peptide Warehouse

Liberty Peptides (63/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Nexaph · vs Peptide Warehouse

Nexaph (62/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Peptide Warehouse

Peptide Warehouse (60/100, 19 comparisons)

vs Licensed Peptides · vs Core Peptides · vs Ascension Peptides · vs Paramount Peptides · vs Sports Technology Labs · vs Koi Peptides · vs Alpha Peptides · vs Evolve Peptides · vs BioLongevity Labs · vs Pure Peptide Labs · vs Peptide Perfection · vs Simple Peptide · vs Alpha Labs Peptides · vs Biotech Peptides · vs Peptide Pros · vs Verified Peptides · vs Limitless Biotech · vs Liberty Peptides · vs Nexaph