Vendor comparison
Grey Matters Research vs Research1peptides
Grey Matters Research is cheaper per mg on 45 of the 46 peptides they share; Research1peptides on 1.
Across all 46, Grey Matters Research’s price per mg is a median 36% lower than Research1peptides’s.
- Listings on the index
- 56
- Cheaper per mg on
- 45 of 46 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 18 Aug 2026
- Listings on the index
- 64
- Cheaper per mg on
- 1 of 46 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 4 Nov 2026
Retail 46
Purchases of fewer than 10 vials.
- Adamax
Grey Matters Research
$4.20/mg
10 mg · $42.00
checked 18 Aug 2026
Research1peptides
$3.00/mg
10 mg · $30.00
checked 4 Nov 2026
Research1peptides 29% cheaper
- Adipotide
Grey Matters Research
$3.10/mg
10 mg · $31.00
checked 18 Aug 2026
Research1peptides
$10.00/mg
5 mg · $50.00
checked 4 Nov 2026
Grey Matters Research 69% cheaper
- AHK-Cu
Grey Matters Research
$0.170/mg
100 mg · $17.00
checked 18 Aug 2026
Research1peptides
$0.320/mg
100 mg · $32.00
checked 4 Nov 2026
Grey Matters Research 47% cheaper
- AICAR
Grey Matters Research
$0.300/mg
50 mg · $15.00
checked 18 Aug 2026
Research1peptides
$0.500/mg
50 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 40% cheaper
- AOD-9604
Grey Matters Research
$4.00/mg
5 mg · $20.00
checked 18 Aug 2026
Research1peptides
$5.80/mg
5 mg · $29.00
checked 4 Nov 2026
Grey Matters Research 31% cheaper
- ARA-290
Grey Matters Research
$1.19/mg
16 mg · $19.00
checked 18 Aug 2026
Research1peptides
$2.70/mg
10 mg · $27.00
checked 4 Nov 2026
Grey Matters Research 56% cheaper
- Cardiogen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$1.75/mg
20 mg · $35.00
checked 4 Nov 2026
Grey Matters Research 20% cheaper
- Cartalax
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$1.50/mg
20 mg · $30.00
checked 4 Nov 2026
Grey Matters Research 7% cheaper
- CJC-1295 DAC
Grey Matters Research
$4.20/mg
5 mg · $21.00
checked 18 Aug 2026
Research1peptides
$6.00/mg
5 mg · $30.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- CJC-1295 NO DAC
Grey Matters Research
$2.60/mg
10 mg · $26.00
checked 18 Aug 2026
Research1peptides
$3.50/mg
10 mg · $35.00
checked 4 Nov 2026
Grey Matters Research 26% cheaper
- Cortagen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
20 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- DSIP
Grey Matters Research
$1.90/mg
10 mg · $19.00
checked 18 Aug 2026
Research1peptides
$2.70/mg
10 mg · $27.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- Epithalon
Grey Matters Research
$1.10/mg
20 mg · $22.00
checked 18 Aug 2026
Research1peptides
$1.30/mg
50 mg · $65.00
checked 4 Nov 2026
Grey Matters Research 15% cheaper
- Glutathione
Grey Matters Research
$0.012/mg
1500 mg · $18.00
checked 18 Aug 2026
Research1peptides
$0.020/mg
1500 mg · $30.00
checked 4 Nov 2026
Grey Matters Research 40% cheaper
- Hexarelin
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
Research1peptides
$4.50/mg
10 mg · $45.00
checked 4 Nov 2026
Grey Matters Research 20% cheaper
- IGF-1 LR3
Grey Matters Research
$34.00/mg
1 mg · $34.00
checked 18 Aug 2026
Research1peptides
$45.00/mg
1 mg · $45.00
checked 4 Nov 2026
Grey Matters Research 24% cheaper
- Ipamorelin
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 28% cheaper
- Kisspeptin
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 36% cheaper
- KPV
Grey Matters Research
$1.07/mg
30 mg · $32.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 57% cheaper
- LL-37
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
Research1peptides
$7.00/mg
5 mg · $35.00
checked 4 Nov 2026
Grey Matters Research 49% cheaper
- Mazdutide
Grey Matters Research
$3.60/mg
10 mg · $36.00
checked 18 Aug 2026
Research1peptides
$3.90/mg
10 mg · $39.00
checked 4 Nov 2026
Grey Matters Research 8% cheaper
- Melanotan 1
Grey Matters Research
$1.50/mg
10 mg · $15.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 40% cheaper
- Melanotan 2
Grey Matters Research
$1.40/mg
10 mg · $14.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 44% cheaper
- MOTS-C
Grey Matters Research
$1.00/mg
40 mg · $40.00
checked 18 Aug 2026
Research1peptides
$1.38/mg
40 mg · $55.00
checked 4 Nov 2026
Grey Matters Research 27% cheaper
- N-Acetyl Selank
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Research1peptides
$3.00/mg
10 mg · $30.00
checked 4 Nov 2026
Grey Matters Research 40% cheaper
- N-Acetyl Semax
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
30 mg · $60.00
checked 4 Nov 2026
Grey Matters Research 10% cheaper
- NAD+
Grey Matters Research
$0.028/mg
1000 mg · $28.00
checked 18 Aug 2026
Research1peptides
$0.045/mg
1000 mg · $45.00
checked 4 Nov 2026
Grey Matters Research 38% cheaper
- Ovagen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
20 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- Oxytocin
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Research1peptides
$4.40/mg
5 mg · $22.00
checked 4 Nov 2026
Grey Matters Research 64% cheaper
- PE-22-28
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Research1peptides
$3.00/mg
10 mg · $30.00
checked 4 Nov 2026
Grey Matters Research 47% cheaper
- Prostamax
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
20 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- PT-141
Grey Matters Research
$1.50/mg
10 mg · $15.00
checked 18 Aug 2026
Research1peptides
$2.40/mg
10 mg · $24.00
checked 4 Nov 2026
Grey Matters Research 38% cheaper
- Retatrutide
Grey Matters Research
$1.22/mg
60 mg · $73.00
checked 18 Aug 2026
Research1peptides
$2.29/mg
100 mg · $229.00
checked 4 Nov 2026
Grey Matters Research 47% cheaper
- Selank
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 36% cheaper
- Semaglutide
Grey Matters Research
$1.70/mg
10 mg · $17.00
checked 18 Aug 2026
Research1peptides
$2.25/mg
20 mg · $45.00
checked 4 Nov 2026
Grey Matters Research 24% cheaper
- Semax
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Research1peptides
$2.50/mg
10 mg · $25.00
checked 4 Nov 2026
Grey Matters Research 36% cheaper
- SNAP-8
Grey Matters Research
$1.00/mg
10 mg · $10.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
10 mg · $20.00
checked 4 Nov 2026
Grey Matters Research 50% cheaper
- Survodutide
Grey Matters Research
$3.50/mg
10 mg · $35.00
checked 18 Aug 2026
Research1peptides
$7.50/mg
10 mg · $75.00
checked 4 Nov 2026
Grey Matters Research 53% cheaper
- TB-500
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Research1peptides
$3.90/mg
10 mg · $39.00
checked 4 Nov 2026
Grey Matters Research 54% cheaper
- Tesamorelin
Grey Matters Research
$2.40/mg
20 mg · $48.00
checked 18 Aug 2026
Research1peptides
$3.83/mg
30 mg · $115.00
checked 4 Nov 2026
Grey Matters Research 37% cheaper
- Testagen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
20 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- Thymalin
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Research1peptides
$1.75/mg
20 mg · $35.00
checked 4 Nov 2026
Grey Matters Research 9% cheaper
- Thymogen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
20 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- Thymosin Alpha-1
Grey Matters Research
$2.50/mg
10 mg · $25.00
checked 18 Aug 2026
Research1peptides
$4.29/mg
7 mg · $30.00
checked 4 Nov 2026
Grey Matters Research 42% cheaper
- Vesugen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Research1peptides
$2.00/mg
20 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 30% cheaper
- VIP
Grey Matters Research
$2.20/mg
10 mg · $22.00
checked 18 Aug 2026
Research1peptides
$4.00/mg
10 mg · $40.00
checked 4 Nov 2026
Grey Matters Research 45% cheaper
| Peptide | Grey Matters Research | Research1peptides | Difference per mg |
|---|---|---|---|
| Adamax | $4.20/mg 10 mg · $42.00 checked 18 Aug 2026 | $3.00/mg 10 mg · $30.00 checked 4 Nov 2026 | Research1peptides 29% cheaper |
| Adipotide | $3.10/mg 10 mg · $31.00 checked 18 Aug 2026 | $10.00/mg 5 mg · $50.00 checked 4 Nov 2026 | Grey Matters Research 69% cheaper |
| AHK-Cu | $0.170/mg 100 mg · $17.00 checked 18 Aug 2026 | $0.320/mg 100 mg · $32.00 checked 4 Nov 2026 | Grey Matters Research 47% cheaper |
| AICAR | $0.300/mg 50 mg · $15.00 checked 18 Aug 2026 | $0.500/mg 50 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 40% cheaper |
| AOD-9604 | $4.00/mg 5 mg · $20.00 checked 18 Aug 2026 | $5.80/mg 5 mg · $29.00 checked 4 Nov 2026 | Grey Matters Research 31% cheaper |
| ARA-290 | $1.19/mg 16 mg · $19.00 checked 18 Aug 2026 | $2.70/mg 10 mg · $27.00 checked 4 Nov 2026 | Grey Matters Research 56% cheaper |
| Cardiogen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $1.75/mg 20 mg · $35.00 checked 4 Nov 2026 | Grey Matters Research 20% cheaper |
| Cartalax | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $1.50/mg 20 mg · $30.00 checked 4 Nov 2026 | Grey Matters Research 7% cheaper |
| CJC-1295 DAC | $4.20/mg 5 mg · $21.00 checked 18 Aug 2026 | $6.00/mg 5 mg · $30.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| CJC-1295 NO DAC | $2.60/mg 10 mg · $26.00 checked 18 Aug 2026 | $3.50/mg 10 mg · $35.00 checked 4 Nov 2026 | Grey Matters Research 26% cheaper |
| Cortagen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $2.00/mg 20 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| DSIP | $1.90/mg 10 mg · $19.00 checked 18 Aug 2026 | $2.70/mg 10 mg · $27.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| Epithalon | $1.10/mg 20 mg · $22.00 checked 18 Aug 2026 | $1.30/mg 50 mg · $65.00 checked 4 Nov 2026 | Grey Matters Research 15% cheaper |
| Glutathione | $0.012/mg 1500 mg · $18.00 checked 18 Aug 2026 | $0.020/mg 1500 mg · $30.00 checked 4 Nov 2026 | Grey Matters Research 40% cheaper |
| Hexarelin | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | $4.50/mg 10 mg · $45.00 checked 4 Nov 2026 | Grey Matters Research 20% cheaper |
| IGF-1 LR3 | $34.00/mg 1 mg · $34.00 checked 18 Aug 2026 | $45.00/mg 1 mg · $45.00 checked 4 Nov 2026 | Grey Matters Research 24% cheaper |
| Ipamorelin | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 28% cheaper |
| Kisspeptin | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 36% cheaper |
| KPV | $1.07/mg 30 mg · $32.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 57% cheaper |
| LL-37 | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | $7.00/mg 5 mg · $35.00 checked 4 Nov 2026 | Grey Matters Research 49% cheaper |
| Mazdutide | $3.60/mg 10 mg · $36.00 checked 18 Aug 2026 | $3.90/mg 10 mg · $39.00 checked 4 Nov 2026 | Grey Matters Research 8% cheaper |
| Melanotan 1 | $1.50/mg 10 mg · $15.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 40% cheaper |
| Melanotan 2 | $1.40/mg 10 mg · $14.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 44% cheaper |
| MOTS-C | $1.00/mg 40 mg · $40.00 checked 18 Aug 2026 | $1.38/mg 40 mg · $55.00 checked 4 Nov 2026 | Grey Matters Research 27% cheaper |
| N-Acetyl Selank | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | $3.00/mg 10 mg · $30.00 checked 4 Nov 2026 | Grey Matters Research 40% cheaper |
| N-Acetyl Semax | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | $2.00/mg 30 mg · $60.00 checked 4 Nov 2026 | Grey Matters Research 10% cheaper |
| NAD+ | $0.028/mg 1000 mg · $28.00 checked 18 Aug 2026 | $0.045/mg 1000 mg · $45.00 checked 4 Nov 2026 | Grey Matters Research 38% cheaper |
| Ovagen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $2.00/mg 20 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| Oxytocin | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $4.40/mg 5 mg · $22.00 checked 4 Nov 2026 | Grey Matters Research 64% cheaper |
| PE-22-28 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $3.00/mg 10 mg · $30.00 checked 4 Nov 2026 | Grey Matters Research 47% cheaper |
| Prostamax | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $2.00/mg 20 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| PT-141 | $1.50/mg 10 mg · $15.00 checked 18 Aug 2026 | $2.40/mg 10 mg · $24.00 checked 4 Nov 2026 | Grey Matters Research 38% cheaper |
| Retatrutide | $1.22/mg 60 mg · $73.00 checked 18 Aug 2026 | $2.29/mg 100 mg · $229.00 checked 4 Nov 2026 | Grey Matters Research 47% cheaper |
| Selank | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 36% cheaper |
| Semaglutide | $1.70/mg 10 mg · $17.00 checked 18 Aug 2026 | $2.25/mg 20 mg · $45.00 checked 4 Nov 2026 | Grey Matters Research 24% cheaper |
| Semax | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $2.50/mg 10 mg · $25.00 checked 4 Nov 2026 | Grey Matters Research 36% cheaper |
| SNAP-8 | $1.00/mg 10 mg · $10.00 checked 18 Aug 2026 | $2.00/mg 10 mg · $20.00 checked 4 Nov 2026 | Grey Matters Research 50% cheaper |
| Survodutide | $3.50/mg 10 mg · $35.00 checked 18 Aug 2026 | $7.50/mg 10 mg · $75.00 checked 4 Nov 2026 | Grey Matters Research 53% cheaper |
| TB-500 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | $3.90/mg 10 mg · $39.00 checked 4 Nov 2026 | Grey Matters Research 54% cheaper |
| Tesamorelin | $2.40/mg 20 mg · $48.00 checked 18 Aug 2026 | $3.83/mg 30 mg · $115.00 checked 4 Nov 2026 | Grey Matters Research 37% cheaper |
| Testagen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $2.00/mg 20 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| Thymalin | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $1.75/mg 20 mg · $35.00 checked 4 Nov 2026 | Grey Matters Research 9% cheaper |
| Thymogen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $2.00/mg 20 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| Thymosin Alpha-1 | $2.50/mg 10 mg · $25.00 checked 18 Aug 2026 | $4.29/mg 7 mg · $30.00 checked 4 Nov 2026 | Grey Matters Research 42% cheaper |
| Vesugen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $2.00/mg 20 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 30% cheaper |
| VIP | $2.20/mg 10 mg · $22.00 checked 18 Aug 2026 | $4.00/mg 10 mg · $40.00 checked 4 Nov 2026 | Grey Matters Research 45% cheaper |
Only at Grey Matters Research: 10 peptides in the same market
Only at Research1peptides: 18 peptides in the same market
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
- 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
- OP Labs38 shared
- Pure Lab Peptides38 shared
- Biotech Peptides36 shared
- Alpha Peptides34 shared
- SQS Research33 shared
- Bridge Research32 shared
Research1peptides compared with
- Lab Ratz Research56 shared
- Huaian Hanyou Peptide55 shared
- Peptides direct to you54 shared
- Peptides GG54 shared
- VPeptide52 shared
- NHOV50 shared
- Raw Amino50 shared
- Core Peptides49 shared
- Luxe Peptides49 shared
- Prime Longevity Peptides49 shared
- Vipris Biotechnology49 shared
- Pure Lab Peptides48 shared
- TrueLab Peptides48 shared
- Catalyst Peptides47 shared
- Grey Axis Research47 shared
- Priority Peptides47 shared
- Amino Usa46 shared
- Eppixlabs46 shared
- Eros Peptides46 shared
- LabFirst Peptides46 shared
- OP Labs45 shared
- Peptide Science Now45 shared
- Peptide Science Store45 shared
- Cenexa Labs44 shared
- Nexus Bio Life44 shared
- Nordsci Peptides44 shared
- Alpha Peptides43 shared
- Biotech Peptides43 shared
- Bridge Research41 shared
- SQS Research40 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.