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Metabolic
Retatrutide
Triple receptor agonist
Newer triple agonist where identity confirmation matters as much as purity. Metabolic research.
A
Great
Catalog average across 731 samples
98%
Average purity
95.8%
Average of label dose
731
Samples tested
26
Vendors ranked
Grade distribution
How the ranked vendors fall across the grade scale.
A
4
B
5
C
6
D
3
E
8
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Retatrutide vendor ranking
26 vendorsRankVendorPurityOf labelGrade
01IQON99.5%100.4%A Great02Peptide Crafters99.3%100.2%A Great03Limitless Life98.3%98.3%A Great04HK Peptides98.2%96.9%A Great05Marvel Pep98.1%97.4%B Good06Bulk Peptide Supply97.5%96.1%B Good07Andy Peps Studio97.2%98.7%B Good08Qing Li Peptide97.1%97.3%B Good09Peptide Sciences96.9%96%B Good10Lisa Biopeptide96.7%93.9%C Okay11SRY Labs96.5%89.6%C Okay12Amino Amigos96.2%93.4%C Okay13Noble Dragons96.2%91.3%C Okay14Nuscience Peptides95.7%89.5%C Okay15Shanghai ERP Peptide Biotechnology95.6%92.9%C Okay16Reta-Peptide95%94.2%D Poor17Lejian Biotech Peptide94.4%93.1%D Poor18Yimei94.4%92.1%D Poor19Amino Lair94.1%88.1%E Bad20Peptide Partners93.6%91.6%E Bad21Uther91.5%81.1%E Bad22Aavant Research90.9%86.9%E Bad23Polaris Peptides90.3%85.6%E Bad24Wuhan Wansheng Biotechnology87.3%83%E Bad25PurePEPS90.7%82.7%E Bad26Paramount Peptides89.2%78%E BadPublished certificates
521QBTRFG
Retatrutide
99.81% purity, 108.6% of label, 21 Jun 2026
888999997
Retatrutide
99.9% purity, 101.9% of label, 17 May 2026
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Retatrutide
99.9% purity, 102% of label, 12 Apr 2026
462QRTGIJ
Retatrutide
99.92% purity, 103.7% of label, 15 Jun 2026
VRA5RT60B
Retatrutide
95.2% purity, 89.1% of label, 20 Jun 2026