Vendor comparison
Grey Matters Research vs OP Labs
Grey Matters Research and OP Labs list no peptide in the same market, so there is no like-for-like price to compare.
Grey Matters Research
- Listings on the index
- 56
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 18 Aug 2026
OP Labs
- Listings on the index
- 0
- Certificates of analysis on file
- none yet
- Ships from
- not stated
- Latest price check
- none recorded
Only at Grey Matters Research: 56 peptides in the same market
- Adamax
- Adipotide
- AHK-Cu
- AICAR
- AOD-9604
- ARA-290
- Cardiogen
- Cartalax
- Cerebrolysin
- CJC-1295 DAC
- CJC-1295 NO DAC
- Cortagen
- DSIP
- Epithalon
- GHK Basic
- Glutathione
- Hexarelin
- Humanin
- IGF-1 LR3
- Ipamorelin
- Kisspeptin
- KPV
- LL-37
- Mazdutide
- Melanotan 1
- Melanotan 2
- MOTS-C
- N-Acetyl Selank
- N-Acetyl Semax
- NAD+
- Ovagen
- Oxytocin
- Pancragen
- PE-22-28
- PEG-MGF
- Pinealon
- Prostamax
- PT-141
- Retatrutide
- Selank
- Semaglutide
- Semax
- SNAP-8
- SS-31
- Survodutide
- TB-500
- Tesamorelin
- Testagen
- Thymalin
- Thymogen
- Thymosin Alpha-1
- Thymulin
- Vesilute
- Vesugen
- Vilon
- VIP
Grey Matters Research compared with
- Huaian Hanyou Peptide52 shared
- Peptides GG50 shared
- Peptides direct to you49 shared
- VPeptide48 shared
- Lab Ratz Research47 shared
- Luxe Peptides46 shared
- Research1peptides46 shared
- Core Peptides45 shared
- Raw Amino45 shared
- TrueLab Peptides44 shared
- NHOV43 shared
- Prime Longevity Peptides43 shared
- Eppixlabs42 shared
- Priority Peptides42 shared
- Peptide Science Now41 shared
- Peptide Science Store41 shared
- Cenexa Labs40 shared
- Grey Axis Research40 shared
- LabFirst Peptides40 shared
- Nexus Bio Life40 shared
- Amino Usa39 shared
- Nordsci Peptides39 shared
- Vipris Biotechnology39 shared
- Catalyst Peptides38 shared
- Eros Peptides38 shared
- Pure Lab Peptides38 shared
- Biotech Peptides36 shared
- Alpha Peptides34 shared
- SQS Research33 shared
- Bridge Research32 shared
OP Labs compared with
- Huaian Hanyou Peptide52 shared
- Core Peptides51 shared
- Peptides GG51 shared
- Raw Amino51 shared
- Lab Ratz Research50 shared
- Peptides direct to you49 shared
- Luxe Peptides48 shared
- NHOV45 shared
- Research1peptides45 shared
- Peptide Science Store44 shared
- Vipris Biotechnology44 shared
- Biotech Peptides43 shared
- Nordsci Peptides43 shared
- Prime Longevity Peptides43 shared
- Amino Usa42 shared
- Cenexa Labs42 shared
- Peptide Science Now42 shared
- Priority Peptides42 shared
- TrueLab Peptides42 shared
- Eros Peptides41 shared
- VPeptide41 shared
- LabFirst Peptides40 shared
- Nexus Bio Life40 shared
- Grey Axis Research39 shared
- Catalyst Peptides38 shared
- Pure Lab Peptides37 shared
- Eppixlabs36 shared
- SQS Research35 shared
- Bridge Research34 shared
- Alpha Peptides32 shared
Two listings are compared only when they are the same peptide in the same market, so a 10-vial kit is never set against a single vial. Price per mg is our arithmetic on the listed price, for comparison; the amount you pay is the listed price for the size shown, so check it on the vendor’s own page before you buy. What price per mg means.
No vendor can pay to change a price or the order of anything on this page. Some outbound links are affiliate links.