Vendor comparison
Grey Matters Research vs LabFirst Peptides
Grey Matters Research is cheaper per mg on 40 of the 40 peptides they share.
Across all 40, Grey Matters Research’s price per mg is a median 67% lower than LabFirst Peptides’s.
- Listings on the index
- 56
- Cheaper per mg on
- 40 of 40 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 18 Aug 2026
- Listings on the index
- 58
- Cheaper per mg on
- 0 of 40 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 6 Nov 2026
Retail 40
Purchases of fewer than 10 vials.
- Adipotide
Grey Matters Research
$3.10/mg
10 mg · $31.00
checked 18 Aug 2026
LabFirst Peptides
$10.50/mg
10 mg · $105.00
checked 6 Nov 2026
Grey Matters Research 70% cheaper
- AHK-Cu
Grey Matters Research
$0.170/mg
100 mg · $17.00
checked 18 Aug 2026
LabFirst Peptides
$1.20/mg
50 mg · $60.00
checked 6 Nov 2026
Grey Matters Research 86% cheaper
- AICAR
Grey Matters Research
$0.300/mg
50 mg · $15.00
checked 18 Aug 2026
LabFirst Peptides
$1.20/mg
50 mg · $60.00
checked 6 Nov 2026
Grey Matters Research 75% cheaper
- AOD-9604
Grey Matters Research
$4.00/mg
5 mg · $20.00
checked 18 Aug 2026
LabFirst Peptides
$7.50/mg
10 mg · $75.00
checked 6 Nov 2026
Grey Matters Research 47% cheaper
- ARA-290
Grey Matters Research
$1.19/mg
16 mg · $19.00
checked 18 Aug 2026
LabFirst Peptides
$7.00/mg
10 mg · $70.00
checked 6 Nov 2026
Grey Matters Research 83% cheaper
- Cardiogen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Grey Matters Research 67% cheaper
- Cartalax
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Grey Matters Research 67% cheaper
- Cerebrolysin
Grey Matters Research
$0.533/mg
30 mg · $16.00
checked 18 Aug 2026
LabFirst Peptides
$0.833/mg
60 mg · $50.00
checked 6 Nov 2026
Grey Matters Research 36% cheaper
- CJC-1295 DAC
Grey Matters Research
$4.20/mg
5 mg · $21.00
checked 18 Aug 2026
LabFirst Peptides
$26.00/mg
5 mg · $130.00
checked 6 Nov 2026
Grey Matters Research 84% cheaper
- CJC-1295 NO DAC
Grey Matters Research
$2.60/mg
10 mg · $26.00
checked 18 Aug 2026
LabFirst Peptides
$6.80/mg
5 mg · $34.00
checked 6 Nov 2026
Grey Matters Research 62% cheaper
- Cortagen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Grey Matters Research 67% cheaper
- DSIP
Grey Matters Research
$1.90/mg
10 mg · $19.00
checked 18 Aug 2026
LabFirst Peptides
$5.40/mg
10 mg · $54.00
checked 6 Nov 2026
Grey Matters Research 65% cheaper
- Epithalon
Grey Matters Research
$1.10/mg
20 mg · $22.00
checked 18 Aug 2026
LabFirst Peptides
$2.18/mg
50 mg · $109.00
checked 6 Nov 2026
Grey Matters Research 50% cheaper
- Glutathione
Grey Matters Research
$0.012/mg
1500 mg · $18.00
checked 18 Aug 2026
LabFirst Peptides
$0.037/mg
1500 mg · $55.00
checked 6 Nov 2026
Grey Matters Research 67% cheaper
- IGF-1 LR3
Grey Matters Research
$34.00/mg
1 mg · $34.00
checked 18 Aug 2026
LabFirst Peptides
$95.00/mg
1 mg · $95.00
checked 6 Nov 2026
Grey Matters Research 64% cheaper
- Ipamorelin
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
LabFirst Peptides
$6.50/mg
10 mg · $65.00
checked 6 Nov 2026
Grey Matters Research 72% cheaper
- Kisspeptin
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
LabFirst Peptides
$8.50/mg
10 mg · $85.00
checked 6 Nov 2026
Grey Matters Research 81% cheaper
- KPV
Grey Matters Research
$1.07/mg
30 mg · $32.00
checked 18 Aug 2026
LabFirst Peptides
$4.90/mg
10 mg · $49.00
checked 6 Nov 2026
Grey Matters Research 78% cheaper
- LL-37
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
LabFirst Peptides
$30.00/mg
5 mg · $150.00
checked 6 Nov 2026
Grey Matters Research 88% cheaper
- Mazdutide
Grey Matters Research
$3.60/mg
10 mg · $36.00
checked 18 Aug 2026
LabFirst Peptides
$10.00/mg
10 mg · $100.00
checked 6 Nov 2026
Grey Matters Research 64% cheaper
- Melanotan 1
Grey Matters Research
$1.50/mg
10 mg · $15.00
checked 18 Aug 2026
LabFirst Peptides
$4.00/mg
10 mg · $40.00
checked 6 Nov 2026
Grey Matters Research 63% cheaper
- Melanotan 2
Grey Matters Research
$1.40/mg
10 mg · $14.00
checked 18 Aug 2026
LabFirst Peptides
$3.50/mg
10 mg · $35.00
checked 6 Nov 2026
Grey Matters Research 60% cheaper
- MOTS-C
Grey Matters Research
$1.00/mg
40 mg · $40.00
checked 18 Aug 2026
LabFirst Peptides
$2.50/mg
40 mg · $100.00
checked 6 Nov 2026
Grey Matters Research 60% cheaper
- NAD+
Grey Matters Research
$0.028/mg
1000 mg · $28.00
checked 18 Aug 2026
LabFirst Peptides
$0.110/mg
1000 mg · $110.00
checked 6 Nov 2026
Grey Matters Research 75% cheaper
- Oxytocin
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
LabFirst Peptides
$4.50/mg
10 mg · $45.00
checked 6 Nov 2026
Grey Matters Research 64% cheaper
- PE-22-28
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
LabFirst Peptides
$7.00/mg
10 mg · $70.00
checked 6 Nov 2026
Grey Matters Research 77% cheaper
- PEG-MGF
Grey Matters Research
$9.00/mg
2 mg · $18.00
checked 18 Aug 2026
LabFirst Peptides
$40.00/mg
2 mg · $80.00
checked 6 Nov 2026
Grey Matters Research 78% cheaper
- Pinealon
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Grey Matters Research 67% cheaper
- PT-141
Grey Matters Research
$1.50/mg
10 mg · $15.00
checked 18 Aug 2026
LabFirst Peptides
$4.00/mg
10 mg · $40.00
checked 6 Nov 2026
Grey Matters Research 63% cheaper
- Retatrutide
Grey Matters Research
$1.22/mg
60 mg · $73.00
checked 18 Aug 2026
LabFirst Peptides
$3.57/mg
60 mg · $214.00
checked 6 Nov 2026
Grey Matters Research 66% cheaper
- Selank
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
LabFirst Peptides
$2.63/mg
30 mg · $79.00
checked 6 Nov 2026
Grey Matters Research 39% cheaper
- Semaglutide
Grey Matters Research
$1.70/mg
10 mg · $17.00
checked 18 Aug 2026
LabFirst Peptides
$3.83/mg
30 mg · $115.00
checked 6 Nov 2026
Grey Matters Research 56% cheaper
- Semax
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
LabFirst Peptides
$2.30/mg
30 mg · $69.00
checked 6 Nov 2026
Grey Matters Research 30% cheaper
- SS-31
Grey Matters Research
$1.16/mg
50 mg · $58.00
checked 18 Aug 2026
LabFirst Peptides
$4.18/mg
50 mg · $209.00
checked 6 Nov 2026
Grey Matters Research 72% cheaper
- Survodutide
Grey Matters Research
$3.50/mg
10 mg · $35.00
checked 18 Aug 2026
LabFirst Peptides
$16.00/mg
10 mg · $160.00
checked 6 Nov 2026
Grey Matters Research 78% cheaper
- TB-500
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
LabFirst Peptides
$7.50/mg
10 mg · $75.00
checked 6 Nov 2026
Grey Matters Research 76% cheaper
- Tesamorelin
Grey Matters Research
$2.40/mg
20 mg · $48.00
checked 18 Aug 2026
LabFirst Peptides
$7.50/mg
20 mg · $150.00
checked 6 Nov 2026
Grey Matters Research 68% cheaper
- Thymosin Alpha-1
Grey Matters Research
$2.50/mg
10 mg · $25.00
checked 18 Aug 2026
LabFirst Peptides
$13.00/mg
10 mg · $130.00
checked 6 Nov 2026
Grey Matters Research 81% cheaper
- Vesugen
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
LabFirst Peptides
$6.00/mg
10 mg · $60.00
checked 6 Nov 2026
Grey Matters Research 77% cheaper
- VIP
Grey Matters Research
$2.20/mg
10 mg · $22.00
checked 18 Aug 2026
LabFirst Peptides
$13.00/mg
5 mg · $65.00
checked 6 Nov 2026
Grey Matters Research 83% cheaper
| Peptide | Grey Matters Research | LabFirst Peptides | Difference per mg |
|---|---|---|---|
| Adipotide | $3.10/mg 10 mg · $31.00 checked 18 Aug 2026 | $10.50/mg 10 mg · $105.00 checked 6 Nov 2026 | Grey Matters Research 70% cheaper |
| AHK-Cu | $0.170/mg 100 mg · $17.00 checked 18 Aug 2026 | $1.20/mg 50 mg · $60.00 checked 6 Nov 2026 | Grey Matters Research 86% cheaper |
| AICAR | $0.300/mg 50 mg · $15.00 checked 18 Aug 2026 | $1.20/mg 50 mg · $60.00 checked 6 Nov 2026 | Grey Matters Research 75% cheaper |
| AOD-9604 | $4.00/mg 5 mg · $20.00 checked 18 Aug 2026 | $7.50/mg 10 mg · $75.00 checked 6 Nov 2026 | Grey Matters Research 47% cheaper |
| ARA-290 | $1.19/mg 16 mg · $19.00 checked 18 Aug 2026 | $7.00/mg 10 mg · $70.00 checked 6 Nov 2026 | Grey Matters Research 83% cheaper |
| Cardiogen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | Grey Matters Research 67% cheaper |
| Cartalax | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | Grey Matters Research 67% cheaper |
| Cerebrolysin | $0.533/mg 30 mg · $16.00 checked 18 Aug 2026 | $0.833/mg 60 mg · $50.00 checked 6 Nov 2026 | Grey Matters Research 36% cheaper |
| CJC-1295 DAC | $4.20/mg 5 mg · $21.00 checked 18 Aug 2026 | $26.00/mg 5 mg · $130.00 checked 6 Nov 2026 | Grey Matters Research 84% cheaper |
| CJC-1295 NO DAC | $2.60/mg 10 mg · $26.00 checked 18 Aug 2026 | $6.80/mg 5 mg · $34.00 checked 6 Nov 2026 | Grey Matters Research 62% cheaper |
| Cortagen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | Grey Matters Research 67% cheaper |
| DSIP | $1.90/mg 10 mg · $19.00 checked 18 Aug 2026 | $5.40/mg 10 mg · $54.00 checked 6 Nov 2026 | Grey Matters Research 65% cheaper |
| Epithalon | $1.10/mg 20 mg · $22.00 checked 18 Aug 2026 | $2.18/mg 50 mg · $109.00 checked 6 Nov 2026 | Grey Matters Research 50% cheaper |
| Glutathione | $0.012/mg 1500 mg · $18.00 checked 18 Aug 2026 | $0.037/mg 1500 mg · $55.00 checked 6 Nov 2026 | Grey Matters Research 67% cheaper |
| IGF-1 LR3 | $34.00/mg 1 mg · $34.00 checked 18 Aug 2026 | $95.00/mg 1 mg · $95.00 checked 6 Nov 2026 | Grey Matters Research 64% cheaper |
| Ipamorelin | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | $6.50/mg 10 mg · $65.00 checked 6 Nov 2026 | Grey Matters Research 72% cheaper |
| Kisspeptin | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $8.50/mg 10 mg · $85.00 checked 6 Nov 2026 | Grey Matters Research 81% cheaper |
| KPV | $1.07/mg 30 mg · $32.00 checked 18 Aug 2026 | $4.90/mg 10 mg · $49.00 checked 6 Nov 2026 | Grey Matters Research 78% cheaper |
| LL-37 | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | $30.00/mg 5 mg · $150.00 checked 6 Nov 2026 | Grey Matters Research 88% cheaper |
| Mazdutide | $3.60/mg 10 mg · $36.00 checked 18 Aug 2026 | $10.00/mg 10 mg · $100.00 checked 6 Nov 2026 | Grey Matters Research 64% cheaper |
| Melanotan 1 | $1.50/mg 10 mg · $15.00 checked 18 Aug 2026 | $4.00/mg 10 mg · $40.00 checked 6 Nov 2026 | Grey Matters Research 63% cheaper |
| Melanotan 2 | $1.40/mg 10 mg · $14.00 checked 18 Aug 2026 | $3.50/mg 10 mg · $35.00 checked 6 Nov 2026 | Grey Matters Research 60% cheaper |
| MOTS-C | $1.00/mg 40 mg · $40.00 checked 18 Aug 2026 | $2.50/mg 40 mg · $100.00 checked 6 Nov 2026 | Grey Matters Research 60% cheaper |
| NAD+ | $0.028/mg 1000 mg · $28.00 checked 18 Aug 2026 | $0.110/mg 1000 mg · $110.00 checked 6 Nov 2026 | Grey Matters Research 75% cheaper |
| Oxytocin | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $4.50/mg 10 mg · $45.00 checked 6 Nov 2026 | Grey Matters Research 64% cheaper |
| PE-22-28 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $7.00/mg 10 mg · $70.00 checked 6 Nov 2026 | Grey Matters Research 77% cheaper |
| PEG-MGF | $9.00/mg 2 mg · $18.00 checked 18 Aug 2026 | $40.00/mg 2 mg · $80.00 checked 6 Nov 2026 | Grey Matters Research 78% cheaper |
| Pinealon | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | Grey Matters Research 67% cheaper |
| PT-141 | $1.50/mg 10 mg · $15.00 checked 18 Aug 2026 | $4.00/mg 10 mg · $40.00 checked 6 Nov 2026 | Grey Matters Research 63% cheaper |
| Retatrutide | $1.22/mg 60 mg · $73.00 checked 18 Aug 2026 | $3.57/mg 60 mg · $214.00 checked 6 Nov 2026 | Grey Matters Research 66% cheaper |
| Selank | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $2.63/mg 30 mg · $79.00 checked 6 Nov 2026 | Grey Matters Research 39% cheaper |
| Semaglutide | $1.70/mg 10 mg · $17.00 checked 18 Aug 2026 | $3.83/mg 30 mg · $115.00 checked 6 Nov 2026 | Grey Matters Research 56% cheaper |
| Semax | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | $2.30/mg 30 mg · $69.00 checked 6 Nov 2026 | Grey Matters Research 30% cheaper |
| SS-31 | $1.16/mg 50 mg · $58.00 checked 18 Aug 2026 | $4.18/mg 50 mg · $209.00 checked 6 Nov 2026 | Grey Matters Research 72% cheaper |
| Survodutide | $3.50/mg 10 mg · $35.00 checked 18 Aug 2026 | $16.00/mg 10 mg · $160.00 checked 6 Nov 2026 | Grey Matters Research 78% cheaper |
| TB-500 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | $7.50/mg 10 mg · $75.00 checked 6 Nov 2026 | Grey Matters Research 76% cheaper |
| Tesamorelin | $2.40/mg 20 mg · $48.00 checked 18 Aug 2026 | $7.50/mg 20 mg · $150.00 checked 6 Nov 2026 | Grey Matters Research 68% cheaper |
| Thymosin Alpha-1 | $2.50/mg 10 mg · $25.00 checked 18 Aug 2026 | $13.00/mg 10 mg · $130.00 checked 6 Nov 2026 | Grey Matters Research 81% cheaper |
| Vesugen | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | $6.00/mg 10 mg · $60.00 checked 6 Nov 2026 | Grey Matters Research 77% cheaper |
| VIP | $2.20/mg 10 mg · $22.00 checked 18 Aug 2026 | $13.00/mg 5 mg · $65.00 checked 6 Nov 2026 | Grey Matters Research 83% cheaper |
Only at Grey Matters Research: 16 peptides in the same market
Only at LabFirst Peptides: 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
- 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
- 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
LabFirst Peptides compared with
- Lab Ratz Research54 shared
- Peptides direct to you53 shared
- Huaian Hanyou Peptide51 shared
- Peptides GG50 shared
- Vipris Biotechnology49 shared
- NHOV47 shared
- VPeptide47 shared
- Catalyst Peptides46 shared
- Research1peptides46 shared
- Luxe Peptides45 shared
- Pure Lab Peptides45 shared
- Eppixlabs44 shared
- Raw Amino44 shared
- Core Peptides43 shared
- Grey Axis Research43 shared
- Bridge Research42 shared
- Peptide Science Now42 shared
- Prime Longevity Peptides42 shared
- Alpha Peptides41 shared
- Amino Usa41 shared
- Priority Peptides41 shared
- Biotech Peptides40 shared
- OP Labs40 shared
- SQS Research40 shared
- TrueLab Peptides40 shared
- Cenexa Labs39 shared
- Peptide Science Store39 shared
- Eros Peptides38 shared
- Nexus Bio Life38 shared
- Nordsci Peptides38 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.