Vendor comparison
Core Peptides vs Grey Matters Research
Grey Matters Research is cheaper per mg on 44 of the 45 peptides they share; Core Peptides on 1.
Across all 45, Grey Matters Research’s price per mg is a median 68% lower than Core Peptides’s.
- Listings on the index
- 81
- Cheaper per mg on
- 1 of 45 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 6 Nov 2026
- Listings on the index
- 56
- Cheaper per mg on
- 44 of 45 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 18 Aug 2026
Retail 45
Purchases of fewer than 10 vials.
- Adipotide
Core Peptides
$7.80/mg
10 mg · $78.00
checked 6 Nov 2026
Grey Matters Research
$3.10/mg
10 mg · $31.00
checked 18 Aug 2026
Grey Matters Research 60% cheaper
- AHK-Cu
Core Peptides
$1.01/mg
200 mg · $203.00
checked 6 Nov 2026
Grey Matters Research
$0.170/mg
100 mg · $17.00
checked 18 Aug 2026
Grey Matters Research 83% cheaper
- AOD-9604
Core Peptides
$8.20/mg
5 mg · $41.00
checked 6 Nov 2026
Grey Matters Research
$4.00/mg
5 mg · $20.00
checked 18 Aug 2026
Grey Matters Research 51% cheaper
- ARA-290
Core Peptides
$5.75/mg
16 mg · $92.00
checked 6 Nov 2026
Grey Matters Research
$1.19/mg
16 mg · $19.00
checked 18 Aug 2026
Grey Matters Research 79% cheaper
- Cardiogen
Core Peptides
$3.75/mg
20 mg · $75.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 63% cheaper
- Cartalax
Core Peptides
$3.15/mg
20 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 56% cheaper
- CJC-1295 DAC
Core Peptides
$10.40/mg
5 mg · $52.00
checked 6 Nov 2026
Grey Matters Research
$4.20/mg
5 mg · $21.00
checked 18 Aug 2026
Grey Matters Research 60% cheaper
- CJC-1295 NO DAC
Core Peptides
$8.20/mg
5 mg · $41.00
checked 6 Nov 2026
Grey Matters Research
$2.60/mg
10 mg · $26.00
checked 18 Aug 2026
Grey Matters Research 68% cheaper
- Cortagen
Core Peptides
$2.95/mg
20 mg · $59.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 53% cheaper
- DSIP
Core Peptides
$8.20/mg
5 mg · $41.00
checked 6 Nov 2026
Grey Matters Research
$1.90/mg
10 mg · $19.00
checked 18 Aug 2026
Grey Matters Research 77% cheaper
- Epithalon
Core Peptides
$3.60/mg
25 mg · $90.00
checked 6 Nov 2026
Grey Matters Research
$1.10/mg
20 mg · $22.00
checked 18 Aug 2026
Grey Matters Research 69% cheaper
- GHK Basic
Core Peptides
$0.980/mg
50 mg · $49.00
checked 6 Nov 2026
Grey Matters Research
$0.180/mg
100 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 82% cheaper
- Hexarelin
Core Peptides
$9.40/mg
5 mg · $47.00
checked 6 Nov 2026
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 62% cheaper
- Humanin
Core Peptides
$14.70/mg
10 mg · $147.00
checked 6 Nov 2026
Grey Matters Research
$2.80/mg
10 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 81% cheaper
- IGF-1 LR3
Core Peptides
$150.00/mg
1 mg · $150.00
checked 6 Nov 2026
Grey Matters Research
$34.00/mg
1 mg · $34.00
checked 18 Aug 2026
Grey Matters Research 77% cheaper
- Ipamorelin
Core Peptides
$8.60/mg
5 mg · $43.00
checked 6 Nov 2026
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 79% cheaper
- Kisspeptin
Core Peptides
$6.30/mg
10 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 75% cheaper
- KPV
Core Peptides
$9.50/mg
4 mg · $38.00
checked 6 Nov 2026
Grey Matters Research
$1.07/mg
30 mg · $32.00
checked 18 Aug 2026
Grey Matters Research 89% cheaper
- LL-37
Core Peptides
$17.80/mg
5 mg · $89.00
checked 6 Nov 2026
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 80% cheaper
- Melanotan 1
Core Peptides
$4.30/mg
10 mg · $43.00
checked 6 Nov 2026
Grey Matters Research
$1.50/mg
10 mg · $15.00
checked 18 Aug 2026
Grey Matters Research 65% cheaper
- MOTS-C
Core Peptides
$11.60/mg
10 mg · $116.00
checked 6 Nov 2026
Grey Matters Research
$1.00/mg
40 mg · $40.00
checked 18 Aug 2026
Grey Matters Research 91% cheaper
- N-Acetyl Selank
Core Peptides
$7.10/mg
10 mg · $71.00
checked 6 Nov 2026
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 75% cheaper
- N-Acetyl Semax
Core Peptides
$2.40/mg
25 mg · $60.00
checked 6 Nov 2026
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 25% cheaper
- NAD+
Core Peptides
$0.389/mg
750 mg · $292.00
checked 6 Nov 2026
Grey Matters Research
$0.028/mg
1000 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 93% cheaper
- Ovagen
Core Peptides
$3.10/mg
20 mg · $62.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 55% cheaper
- Oxytocin
Core Peptides
$5.20/mg
10 mg · $52.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 69% cheaper
- Pancragen
Core Peptides
$3.15/mg
20 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 56% cheaper
- PE-22-28
Core Peptides
$6.75/mg
8 mg · $54.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 76% cheaper
- PEG-MGF
Core Peptides
$12.60/mg
5 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$9.00/mg
2 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 29% cheaper
- Pinealon
Core Peptides
$3.75/mg
20 mg · $75.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 63% cheaper
- Prostamax
Core Peptides
$3.15/mg
20 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 56% cheaper
- PT-141
Core Peptides
$4.30/mg
10 mg · $43.00
checked 6 Nov 2026
Grey Matters Research
$1.50/mg
10 mg · $15.00
checked 18 Aug 2026
Grey Matters Research 65% cheaper
- Selank
Core Peptides
$5.20/mg
10 mg · $52.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 69% cheaper
- Semax
Core Peptides
$2.52/mg
25 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 37% cheaper
- SNAP-8
Core Peptides
$0.880/mg
200 mg · $176.00
checked 6 Nov 2026
Grey Matters Research
$1.00/mg
10 mg · $10.00
checked 18 Aug 2026
Core Peptides 12% cheaper
- TB-500
Core Peptides
$14.00/mg
10 mg · $140.00
checked 6 Nov 2026
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 87% cheaper
- Tesamorelin
Core Peptides
$7.90/mg
10 mg · $79.00
checked 6 Nov 2026
Grey Matters Research
$2.40/mg
20 mg · $48.00
checked 18 Aug 2026
Grey Matters Research 70% cheaper
- Testagen
Core Peptides
$3.15/mg
20 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 56% cheaper
- Thymalin
Core Peptides
$5.52/mg
25 mg · $138.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 71% cheaper
- Thymogen
Core Peptides
$3.90/mg
20 mg · $78.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 64% cheaper
- Thymosin Alpha-1
Core Peptides
$14.90/mg
10 mg · $149.00
checked 6 Nov 2026
Grey Matters Research
$2.50/mg
10 mg · $25.00
checked 18 Aug 2026
Grey Matters Research 83% cheaper
- Vesilute
Core Peptides
$3.20/mg
20 mg · $64.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 56% cheaper
- Vesugen
Core Peptides
$3.15/mg
20 mg · $63.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 56% cheaper
- Vilon
Core Peptides
$3.70/mg
20 mg · $74.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 62% cheaper
- VIP
Core Peptides
$10.67/mg
6 mg · $64.00
checked 6 Nov 2026
Grey Matters Research
$2.20/mg
10 mg · $22.00
checked 18 Aug 2026
Grey Matters Research 79% cheaper
| Peptide | Core Peptides | Grey Matters Research | Difference per mg |
|---|---|---|---|
| Adipotide | $7.80/mg 10 mg · $78.00 checked 6 Nov 2026 | $3.10/mg 10 mg · $31.00 checked 18 Aug 2026 | Grey Matters Research 60% cheaper |
| AHK-Cu | $1.01/mg 200 mg · $203.00 checked 6 Nov 2026 | $0.170/mg 100 mg · $17.00 checked 18 Aug 2026 | Grey Matters Research 83% cheaper |
| AOD-9604 | $8.20/mg 5 mg · $41.00 checked 6 Nov 2026 | $4.00/mg 5 mg · $20.00 checked 18 Aug 2026 | Grey Matters Research 51% cheaper |
| ARA-290 | $5.75/mg 16 mg · $92.00 checked 6 Nov 2026 | $1.19/mg 16 mg · $19.00 checked 18 Aug 2026 | Grey Matters Research 79% cheaper |
| Cardiogen | $3.75/mg 20 mg · $75.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 63% cheaper |
| Cartalax | $3.15/mg 20 mg · $63.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 56% cheaper |
| CJC-1295 DAC | $10.40/mg 5 mg · $52.00 checked 6 Nov 2026 | $4.20/mg 5 mg · $21.00 checked 18 Aug 2026 | Grey Matters Research 60% cheaper |
| CJC-1295 NO DAC | $8.20/mg 5 mg · $41.00 checked 6 Nov 2026 | $2.60/mg 10 mg · $26.00 checked 18 Aug 2026 | Grey Matters Research 68% cheaper |
| Cortagen | $2.95/mg 20 mg · $59.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 53% cheaper |
| DSIP | $8.20/mg 5 mg · $41.00 checked 6 Nov 2026 | $1.90/mg 10 mg · $19.00 checked 18 Aug 2026 | Grey Matters Research 77% cheaper |
| Epithalon | $3.60/mg 25 mg · $90.00 checked 6 Nov 2026 | $1.10/mg 20 mg · $22.00 checked 18 Aug 2026 | Grey Matters Research 69% cheaper |
| GHK Basic | $0.980/mg 50 mg · $49.00 checked 6 Nov 2026 | $0.180/mg 100 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 82% cheaper |
| Hexarelin | $9.40/mg 5 mg · $47.00 checked 6 Nov 2026 | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 62% cheaper |
| Humanin | $14.70/mg 10 mg · $147.00 checked 6 Nov 2026 | $2.80/mg 10 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 81% cheaper |
| IGF-1 LR3 | $150.00/mg 1 mg · $150.00 checked 6 Nov 2026 | $34.00/mg 1 mg · $34.00 checked 18 Aug 2026 | Grey Matters Research 77% cheaper |
| Ipamorelin | $8.60/mg 5 mg · $43.00 checked 6 Nov 2026 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 79% cheaper |
| Kisspeptin | $6.30/mg 10 mg · $63.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 75% cheaper |
| KPV | $9.50/mg 4 mg · $38.00 checked 6 Nov 2026 | $1.07/mg 30 mg · $32.00 checked 18 Aug 2026 | Grey Matters Research 89% cheaper |
| LL-37 | $17.80/mg 5 mg · $89.00 checked 6 Nov 2026 | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 80% cheaper |
| Melanotan 1 | $4.30/mg 10 mg · $43.00 checked 6 Nov 2026 | $1.50/mg 10 mg · $15.00 checked 18 Aug 2026 | Grey Matters Research 65% cheaper |
| MOTS-C | $11.60/mg 10 mg · $116.00 checked 6 Nov 2026 | $1.00/mg 40 mg · $40.00 checked 18 Aug 2026 | Grey Matters Research 91% cheaper |
| N-Acetyl Selank | $7.10/mg 10 mg · $71.00 checked 6 Nov 2026 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 75% cheaper |
| N-Acetyl Semax | $2.40/mg 25 mg · $60.00 checked 6 Nov 2026 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 25% cheaper |
| NAD+ | $0.389/mg 750 mg · $292.00 checked 6 Nov 2026 | $0.028/mg 1000 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 93% cheaper |
| Ovagen | $3.10/mg 20 mg · $62.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 55% cheaper |
| Oxytocin | $5.20/mg 10 mg · $52.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 69% cheaper |
| Pancragen | $3.15/mg 20 mg · $63.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 56% cheaper |
| PE-22-28 | $6.75/mg 8 mg · $54.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 76% cheaper |
| PEG-MGF | $12.60/mg 5 mg · $63.00 checked 6 Nov 2026 | $9.00/mg 2 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 29% cheaper |
| Pinealon | $3.75/mg 20 mg · $75.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 63% cheaper |
| Prostamax | $3.15/mg 20 mg · $63.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 56% cheaper |
| PT-141 | $4.30/mg 10 mg · $43.00 checked 6 Nov 2026 | $1.50/mg 10 mg · $15.00 checked 18 Aug 2026 | Grey Matters Research 65% cheaper |
| Selank | $5.20/mg 10 mg · $52.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 69% cheaper |
| Semax | $2.52/mg 25 mg · $63.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 37% cheaper |
| SNAP-8 | $0.880/mg 200 mg · $176.00 checked 6 Nov 2026 | $1.00/mg 10 mg · $10.00 checked 18 Aug 2026 | Core Peptides 12% cheaper |
| TB-500 | $14.00/mg 10 mg · $140.00 checked 6 Nov 2026 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 87% cheaper |
| Tesamorelin | $7.90/mg 10 mg · $79.00 checked 6 Nov 2026 | $2.40/mg 20 mg · $48.00 checked 18 Aug 2026 | Grey Matters Research 70% cheaper |
| Testagen | $3.15/mg 20 mg · $63.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 56% cheaper |
| Thymalin | $5.52/mg 25 mg · $138.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 71% cheaper |
| Thymogen | $3.90/mg 20 mg · $78.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 64% cheaper |
| Thymosin Alpha-1 | $14.90/mg 10 mg · $149.00 checked 6 Nov 2026 | $2.50/mg 10 mg · $25.00 checked 18 Aug 2026 | Grey Matters Research 83% cheaper |
| Vesilute | $3.20/mg 20 mg · $64.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 56% cheaper |
| Vesugen | $3.15/mg 20 mg · $63.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 56% cheaper |
| Vilon | $3.70/mg 20 mg · $74.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 62% cheaper |
| VIP | $10.67/mg 6 mg · $64.00 checked 6 Nov 2026 | $2.20/mg 10 mg · $22.00 checked 18 Aug 2026 | Grey Matters Research 79% cheaper |
Only at Core Peptides: 36 peptides in the same market
- ABP-7
- ACE-031
- Acetyl Hexapeptide-3
- B7-33
- BPC-157
- Bronchogen
- Chonluten
- Decapeptide-12
- FOXO4-DRI
- GHK-Cu
- GHRP-2
- GHRP-6
- Gonadorelin
- hGH Fragment 176-191
- Lipopeptide
- Livagen
- Matrixyl
- MGF
- Nonapeptide-1
- P21
- Pal-AHK
- Pal-GHK
- Palmitoyl Tetrapeptide-7
- Palmitoyl Tripeptide-5
- Pentapeptide-18
- Pentapeptide-3V
- PNC-27
- PTD-DBM
- Sermorelin
- Syn-AKE
- Syn-Coll
- Thyrotropin TRH
- Tripeptide-1
- Tripeptide-29
- Triptorelin
- Vialox
Only at Grey Matters Research: 11 peptides in the same market
Core Peptides compared with
- Raw Amino81 shared
- Huaian Hanyou Peptide80 shared
- Biotech Peptides67 shared
- Peptides direct to you56 shared
- Peptides GG56 shared
- Peptide Science Store55 shared
- Cenexa Labs54 shared
- Luxe Peptides54 shared
- Lab Ratz Research53 shared
- Peptide Science Now52 shared
- NHOV51 shared
- Nordsci Peptides51 shared
- OP Labs51 shared
- Amino Usa49 shared
- Research1peptides49 shared
- Prime Longevity Peptides48 shared
- TrueLab Peptides48 shared
- Vipris Biotechnology48 shared
- VPeptide47 shared
- Nexus Bio Life46 shared
- Priority Peptides46 shared
- Eppixlabs43 shared
- Eros Peptides43 shared
- LabFirst Peptides43 shared
- Catalyst Peptides40 shared
- Grey Axis Research40 shared
- Pure Lab Peptides40 shared
- Bridge Research36 shared
- Alpha Peptides35 shared
- SQS Research34 shared
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
- 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
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.