Vendor comparison
Bridge Research vs Grey Matters Research
Grey Matters Research is cheaper per mg on 31 of the 32 peptides they share; Bridge Research on 1.
Across all 32, Grey Matters Research’s price per mg is a median 50% lower than Bridge Research’s.
- Listings on the index
- 55
- Cheaper per mg on
- 1 of 32 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
- 31 of 32 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 18 Aug 2026
Retail 32
Purchases of fewer than 10 vials.
- Adamax
Bridge Research
$5.90/mg
10 mg · $59.00
checked 25 Aug 2026
Grey Matters Research
$4.20/mg
10 mg · $42.00
checked 18 Aug 2026
Grey Matters Research 29% cheaper
- Adipotide
Bridge Research
$15.20/mg
5 mg · $76.00
checked 6 Nov 2026
Grey Matters Research
$3.10/mg
10 mg · $31.00
checked 18 Aug 2026
Grey Matters Research 80% cheaper
- AICAR
Bridge Research
$0.550/mg
100 mg · $55.00
checked 25 Aug 2026
Grey Matters Research
$0.300/mg
50 mg · $15.00
checked 18 Aug 2026
Grey Matters Research 45% cheaper
- AOD-9604
Bridge Research
$8.00/mg
10 mg · $80.00
checked 6 Nov 2026
Grey Matters Research
$4.00/mg
5 mg · $20.00
checked 18 Aug 2026
Grey Matters Research 50% cheaper
- ARA-290
Bridge Research
$3.25/mg
16 mg · $52.00
checked 25 Aug 2026
Grey Matters Research
$1.19/mg
16 mg · $19.00
checked 18 Aug 2026
Grey Matters Research 63% cheaper
- Cardiogen
Bridge Research
$2.00/mg
20 mg · $40.00
checked 25 Aug 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 30% cheaper
- Cerebrolysin
Bridge Research
$0.217/mg
60 mg · $13.00
checked 6 Nov 2026
Grey Matters Research
$0.533/mg
30 mg · $16.00
checked 18 Aug 2026
Bridge Research 59% cheaper
- DSIP
Bridge Research
$3.30/mg
10 mg · $33.00
checked 6 Nov 2026
Grey Matters Research
$1.90/mg
10 mg · $19.00
checked 18 Aug 2026
Grey Matters Research 42% cheaper
- Epithalon
Bridge Research
$1.42/mg
50 mg · $71.00
checked 6 Nov 2026
Grey Matters Research
$1.10/mg
20 mg · $22.00
checked 18 Aug 2026
Grey Matters Research 23% cheaper
- Glutathione
Bridge Research
$0.020/mg
1500 mg · $30.00
checked 6 Nov 2026
Grey Matters Research
$0.012/mg
1500 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 40% cheaper
- Hexarelin
Bridge Research
$10.80/mg
5 mg · $54.00
checked 25 Aug 2026
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 67% cheaper
- IGF-1 LR3
Bridge Research
$85.00/mg
1 mg · $85.00
checked 6 Nov 2026
Grey Matters Research
$34.00/mg
1 mg · $34.00
checked 18 Aug 2026
Grey Matters Research 60% cheaper
- Ipamorelin
Bridge Research
$10.00/mg
10 mg · $100.00
checked 6 Nov 2026
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 82% cheaper
- Kisspeptin
Bridge Research
$4.00/mg
10 mg · $40.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 60% cheaper
- KPV
Bridge Research
$2.50/mg
10 mg · $25.00
checked 25 Aug 2026
Grey Matters Research
$1.07/mg
30 mg · $32.00
checked 18 Aug 2026
Grey Matters Research 57% cheaper
- LL-37
Bridge Research
$7.60/mg
5 mg · $38.00
checked 6 Nov 2026
Grey Matters Research
$3.60/mg
5 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 53% cheaper
- Mazdutide
Bridge Research
$8.00/mg
10 mg · $80.00
checked 25 Aug 2026
Grey Matters Research
$3.60/mg
10 mg · $36.00
checked 18 Aug 2026
Grey Matters Research 55% cheaper
- MOTS-C
Bridge Research
$2.50/mg
40 mg · $100.00
checked 6 Nov 2026
Grey Matters Research
$1.00/mg
40 mg · $40.00
checked 18 Aug 2026
Grey Matters Research 60% cheaper
- NAD+
Bridge Research
$0.035/mg
1000 mg · $35.00
checked 6 Nov 2026
Grey Matters Research
$0.028/mg
1000 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 20% cheaper
- Oxytocin
Bridge Research
$3.00/mg
10 mg · $30.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 47% cheaper
- PE-22-28
Bridge Research
$4.00/mg
10 mg · $40.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 60% cheaper
- Pinealon
Bridge Research
$2.80/mg
10 mg · $28.00
checked 6 Nov 2026
Grey Matters Research
$1.40/mg
20 mg · $28.00
checked 18 Aug 2026
Grey Matters Research 50% cheaper
- Retatrutide
Bridge Research
$1.67/mg
60 mg · $100.00
checked 6 Nov 2026
Grey Matters Research
$1.22/mg
60 mg · $73.00
checked 18 Aug 2026
Grey Matters Research 27% cheaper
- Selank
Bridge Research
$2.80/mg
10 mg · $28.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 43% cheaper
- Semaglutide
Bridge Research
$3.33/mg
30 mg · $100.00
checked 6 Nov 2026
Grey Matters Research
$1.70/mg
10 mg · $17.00
checked 18 Aug 2026
Grey Matters Research 49% cheaper
- Semax
Bridge Research
$2.30/mg
10 mg · $23.00
checked 6 Nov 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 30% cheaper
- SNAP-8
Bridge Research
$2.00/mg
10 mg · $20.00
checked 6 Nov 2026
Grey Matters Research
$1.00/mg
10 mg · $10.00
checked 18 Aug 2026
Grey Matters Research 50% cheaper
- Survodutide
Bridge Research
$11.80/mg
10 mg · $118.00
checked 25 Aug 2026
Grey Matters Research
$3.50/mg
10 mg · $35.00
checked 18 Aug 2026
Grey Matters Research 70% cheaper
- TB-500
Bridge Research
$5.50/mg
10 mg · $55.00
checked 25 Aug 2026
Grey Matters Research
$1.80/mg
10 mg · $18.00
checked 18 Aug 2026
Grey Matters Research 67% cheaper
- Tesamorelin
Bridge Research
$5.00/mg
20 mg · $100.00
checked 6 Nov 2026
Grey Matters Research
$2.40/mg
20 mg · $48.00
checked 18 Aug 2026
Grey Matters Research 52% cheaper
- Thymalin
Bridge Research
$2.50/mg
10 mg · $25.00
checked 25 Aug 2026
Grey Matters Research
$1.60/mg
10 mg · $16.00
checked 18 Aug 2026
Grey Matters Research 36% cheaper
- VIP
Bridge Research
$6.00/mg
10 mg · $60.00
checked 6 Nov 2026
Grey Matters Research
$2.20/mg
10 mg · $22.00
checked 18 Aug 2026
Grey Matters Research 63% cheaper
| Peptide | Bridge Research | Grey Matters Research | Difference per mg |
|---|---|---|---|
| Adamax | $5.90/mg 10 mg · $59.00 checked 25 Aug 2026 | $4.20/mg 10 mg · $42.00 checked 18 Aug 2026 | Grey Matters Research 29% cheaper |
| Adipotide | $15.20/mg 5 mg · $76.00 checked 6 Nov 2026 | $3.10/mg 10 mg · $31.00 checked 18 Aug 2026 | Grey Matters Research 80% cheaper |
| AICAR | $0.550/mg 100 mg · $55.00 checked 25 Aug 2026 | $0.300/mg 50 mg · $15.00 checked 18 Aug 2026 | Grey Matters Research 45% cheaper |
| AOD-9604 | $8.00/mg 10 mg · $80.00 checked 6 Nov 2026 | $4.00/mg 5 mg · $20.00 checked 18 Aug 2026 | Grey Matters Research 50% cheaper |
| ARA-290 | $3.25/mg 16 mg · $52.00 checked 25 Aug 2026 | $1.19/mg 16 mg · $19.00 checked 18 Aug 2026 | Grey Matters Research 63% cheaper |
| Cardiogen | $2.00/mg 20 mg · $40.00 checked 25 Aug 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 30% cheaper |
| Cerebrolysin | $0.217/mg 60 mg · $13.00 checked 6 Nov 2026 | $0.533/mg 30 mg · $16.00 checked 18 Aug 2026 | Bridge Research 59% cheaper |
| DSIP | $3.30/mg 10 mg · $33.00 checked 6 Nov 2026 | $1.90/mg 10 mg · $19.00 checked 18 Aug 2026 | Grey Matters Research 42% cheaper |
| Epithalon | $1.42/mg 50 mg · $71.00 checked 6 Nov 2026 | $1.10/mg 20 mg · $22.00 checked 18 Aug 2026 | Grey Matters Research 23% cheaper |
| Glutathione | $0.020/mg 1500 mg · $30.00 checked 6 Nov 2026 | $0.012/mg 1500 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 40% cheaper |
| Hexarelin | $10.80/mg 5 mg · $54.00 checked 25 Aug 2026 | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 67% cheaper |
| IGF-1 LR3 | $85.00/mg 1 mg · $85.00 checked 6 Nov 2026 | $34.00/mg 1 mg · $34.00 checked 18 Aug 2026 | Grey Matters Research 60% cheaper |
| Ipamorelin | $10.00/mg 10 mg · $100.00 checked 6 Nov 2026 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 82% cheaper |
| Kisspeptin | $4.00/mg 10 mg · $40.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 60% cheaper |
| KPV | $2.50/mg 10 mg · $25.00 checked 25 Aug 2026 | $1.07/mg 30 mg · $32.00 checked 18 Aug 2026 | Grey Matters Research 57% cheaper |
| LL-37 | $7.60/mg 5 mg · $38.00 checked 6 Nov 2026 | $3.60/mg 5 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 53% cheaper |
| Mazdutide | $8.00/mg 10 mg · $80.00 checked 25 Aug 2026 | $3.60/mg 10 mg · $36.00 checked 18 Aug 2026 | Grey Matters Research 55% cheaper |
| MOTS-C | $2.50/mg 40 mg · $100.00 checked 6 Nov 2026 | $1.00/mg 40 mg · $40.00 checked 18 Aug 2026 | Grey Matters Research 60% cheaper |
| NAD+ | $0.035/mg 1000 mg · $35.00 checked 6 Nov 2026 | $0.028/mg 1000 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 20% cheaper |
| Oxytocin | $3.00/mg 10 mg · $30.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 47% cheaper |
| PE-22-28 | $4.00/mg 10 mg · $40.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 60% cheaper |
| Pinealon | $2.80/mg 10 mg · $28.00 checked 6 Nov 2026 | $1.40/mg 20 mg · $28.00 checked 18 Aug 2026 | Grey Matters Research 50% cheaper |
| Retatrutide | $1.67/mg 60 mg · $100.00 checked 6 Nov 2026 | $1.22/mg 60 mg · $73.00 checked 18 Aug 2026 | Grey Matters Research 27% cheaper |
| Selank | $2.80/mg 10 mg · $28.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 43% cheaper |
| Semaglutide | $3.33/mg 30 mg · $100.00 checked 6 Nov 2026 | $1.70/mg 10 mg · $17.00 checked 18 Aug 2026 | Grey Matters Research 49% cheaper |
| Semax | $2.30/mg 10 mg · $23.00 checked 6 Nov 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 30% cheaper |
| SNAP-8 | $2.00/mg 10 mg · $20.00 checked 6 Nov 2026 | $1.00/mg 10 mg · $10.00 checked 18 Aug 2026 | Grey Matters Research 50% cheaper |
| Survodutide | $11.80/mg 10 mg · $118.00 checked 25 Aug 2026 | $3.50/mg 10 mg · $35.00 checked 18 Aug 2026 | Grey Matters Research 70% cheaper |
| TB-500 | $5.50/mg 10 mg · $55.00 checked 25 Aug 2026 | $1.80/mg 10 mg · $18.00 checked 18 Aug 2026 | Grey Matters Research 67% cheaper |
| Tesamorelin | $5.00/mg 20 mg · $100.00 checked 6 Nov 2026 | $2.40/mg 20 mg · $48.00 checked 18 Aug 2026 | Grey Matters Research 52% cheaper |
| Thymalin | $2.50/mg 10 mg · $25.00 checked 25 Aug 2026 | $1.60/mg 10 mg · $16.00 checked 18 Aug 2026 | Grey Matters Research 36% cheaper |
| VIP | $6.00/mg 10 mg · $60.00 checked 6 Nov 2026 | $2.20/mg 10 mg · $22.00 checked 18 Aug 2026 | Grey Matters Research 63% cheaper |
Only at Bridge Research: 23 peptides in the same market
Only at Grey Matters Research: 24 peptides in the same market
Bridge Research compared with
- Lab Ratz Research51 shared
- Peptides direct to you47 shared
- Vipris Biotechnology47 shared
- NHOV46 shared
- Huaian Hanyou Peptide43 shared
- Alpha Peptides42 shared
- Catalyst Peptides42 shared
- LabFirst Peptides42 shared
- Peptides GG41 shared
- Research1peptides41 shared
- Biotech Peptides38 shared
- Amino Usa37 shared
- Peptide Science Now37 shared
- Prime Longevity Peptides37 shared
- Pure Lab Peptides37 shared
- Raw Amino37 shared
- SQS Research37 shared
- Core Peptides36 shared
- Grey Axis Research36 shared
- Luxe Peptides36 shared
- Priority Peptides36 shared
- VPeptide36 shared
- Eros Peptides35 shared
- Peptide Science Store35 shared
- Cenexa Labs34 shared
- Nexus Bio Life34 shared
- Nordsci Peptides34 shared
- OP Labs34 shared
- Eppixlabs31 shared
- TrueLab Peptides31 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
- 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
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.