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Cognitive
Selank
Tuftsin analog
Nasal peptide where carrier purity is as important as the active. Cognitive research.
B
Good
Catalog average across 97 samples
96.6%
Average purity
94.3%
Average of label dose
97
Samples tested
22
Vendors ranked
Grade distribution
How the ranked vendors fall across the grade scale.
A
6
B
6
C
11
D
3
E
0
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Selank vendor ranking
26 vendorsRankVendorPurityOf labelGrade
01Marvel Pep99.4%98.4%A Great02Bulk Peptide Supply99.3%96.3%A Great03Skye Peptides98.4%96.5%A Great04Paradigm Peptide99.5%95%A Great05Peptide Sciences97.8%96.4%A Great06Peptide Partners96.3%97.9%A Great07ZLZ Peptide95%98.5%B Good08Nuscience Peptides97.4%95.2%B Good09Jeep Biotechnology92.4%98.6%B Good10Peptide Crafters91.9%98.5%B Good11XHT Peptides97.2%92.7%B Good12Eternal Peptides97.8%91.2%B Good13Amino Amigos92.1%96.6%C Okay14Astro Peptides91.1%97%C Okay15Saiyan Med90.2%97.7%C Okay16Inno Peptides99.5%87.9%C Okay17Aavant Research95.5%90.1%C Okay18HK Peptides98.1%87.4%C Okay19PurePEPS97.6%87.8%C Okay20Planet Peptide98.3%86.8%C Okay21P3 Labz95.9%89%C Okay22Limitless Life96.3%88.2%C Okay23Uther92.5%91%C Okay24Yimei90.3%91.5%D Poor25Polaris Peptides92.5%88.7%D Poor26Peptime90.1%90.9%D Poor