Vendor comparison
Grey Axis Research vs Peptide Science Store
Grey Axis Research is cheaper per mg on 38 of the 39 peptides they share; Peptide Science Store on 1.
Across all 39, Grey Axis Research’s price per mg is a median 54% lower than Peptide Science Store’s.
- Listings on the index
- 55
- Cheaper per mg on
- 38 of 39 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 20 Oct 2026
- Listings on the index
- 66
- Cheaper per mg on
- 1 of 39 shared
- Certificates of analysis on file
- none yet
- Ships from
- not stated
- Latest price check
- 5 Nov 2026
Retail 39
Purchases of fewer than 10 vials.
- AOD-9604
Grey Axis Research
$7.00/mg
5 mg · $34.99
checked 13 Aug 2026
Peptide Science Store
$10.83/mg
6 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 35% cheaper
- ARA-290
Grey Axis Research
$2.44/mg
16 mg · $38.99
checked 13 Aug 2026
Peptide Science Store
$5.94/mg
16 mg · $95.00
checked 5 Nov 2026
Grey Axis Research 59% cheaper
- BPC-157
Grey Axis Research
$2.00/mg
10 mg · $19.99
checked 13 Aug 2026
Peptide Science Store
$9.33/mg
15 mg · $140.00
checked 5 Nov 2026
Grey Axis Research 79% cheaper
- Bronchogen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.50/mg
20 mg · $70.00
checked 5 Nov 2026
Grey Axis Research 54% cheaper
- Cardiogen
Grey Axis Research
$1.50/mg
20 mg · $29.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 54% cheaper
- Cartalax
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.50/mg
20 mg · $70.00
checked 5 Nov 2026
Grey Axis Research 54% cheaper
- Chonluten
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- CJC-1295 NO DAC
Grey Axis Research
$3.30/mg
10 mg · $32.99
checked 13 Aug 2026
Peptide Science Store
$9.90/mg
5 mg · $49.50
checked 5 Nov 2026
Grey Axis Research 67% cheaper
- Cortagen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- DSIP
Grey Axis Research
$4.00/mg
5 mg · $19.99
checked 13 Aug 2026
Peptide Science Store
$10.00/mg
5 mg · $50.00
checked 5 Nov 2026
Grey Axis Research 60% cheaper
- Epithalon
Grey Axis Research
$2.30/mg
10 mg · $22.99
checked 13 Aug 2026
Peptide Science Store
$4.30/mg
50 mg · $215.00
checked 5 Nov 2026
Grey Axis Research 47% cheaper
- GHK-Cu
Grey Axis Research
$0.310/mg
100 mg · $30.99
checked 13 Aug 2026
Peptide Science Store
$1.40/mg
50 mg · $70.00
checked 5 Nov 2026
Grey Axis Research 78% cheaper
- GHRP-2
Grey Axis Research
$2.40/mg
10 mg · $23.99
checked 13 Aug 2026
Peptide Science Store
$5.00/mg
10 mg · $50.00
checked 5 Nov 2026
Grey Axis Research 52% cheaper
- GHRP-6
Grey Axis Research
$2.40/mg
10 mg · $23.99
checked 13 Aug 2026
Peptide Science Store
$5.00/mg
10 mg · $50.00
checked 5 Nov 2026
Grey Axis Research 52% cheaper
- Glutathione
Grey Axis Research
$0.020/mg
1500 mg · $29.99
checked 13 Aug 2026
Peptide Science Store
$0.142/mg
600 mg · $85.00
checked 5 Nov 2026
Grey Axis Research 86% cheaper
- Hexarelin
Grey Axis Research
$10.00/mg
3 mg · $29.99
checked 13 Aug 2026
Peptide Science Store
$9.00/mg
5 mg · $45.00
checked 5 Nov 2026
Peptide Science Store 10% cheaper
- Ipamorelin
Grey Axis Research
$3.90/mg
10 mg · $38.99
checked 13 Aug 2026
Peptide Science Store
$8.00/mg
10 mg · $80.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- Kisspeptin
Grey Axis Research
$5.20/mg
5 mg · $25.99
checked 13 Aug 2026
Peptide Science Store
$13.00/mg
5 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 60% cheaper
- KPV
Grey Axis Research
$2.30/mg
10 mg · $22.99
checked 13 Aug 2026
Peptide Science Store
$11.00/mg
5 mg · $55.00
checked 5 Nov 2026
Grey Axis Research 79% cheaper
- Livagen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- LL-37
Grey Axis Research
$6.40/mg
5 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$19.00/mg
5 mg · $95.00
checked 5 Nov 2026
Grey Axis Research 66% cheaper
- Melanotan 1
Grey Axis Research
$2.19/mg
10 mg · $21.95
checked 13 Aug 2026
Peptide Science Store
$5.50/mg
10 mg · $55.00
checked 5 Nov 2026
Grey Axis Research 60% cheaper
- MOTS-C
Grey Axis Research
$1.25/mg
40 mg · $49.99
checked 13 Aug 2026
Peptide Science Store
$11.00/mg
10 mg · $110.00
checked 5 Nov 2026
Grey Axis Research 89% cheaper
- NAD+
Grey Axis Research
$0.050/mg
500 mg · $24.99
checked 13 Aug 2026
Peptide Science Store
$0.400/mg
750 mg · $300.00
checked 5 Nov 2026
Grey Axis Research 88% cheaper
- Oxytocin
Grey Axis Research
$3.20/mg
10 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$6.50/mg
10 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- Pancragen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- PE-22-28
Grey Axis Research
$2.30/mg
10 mg · $22.99
checked 20 Oct 2026
Peptide Science Store
$7.50/mg
8 mg · $60.00
checked 5 Nov 2026
Grey Axis Research 69% cheaper
- Pinealon
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.75/mg
20 mg · $75.00
checked 5 Nov 2026
Grey Axis Research 57% cheaper
- Selank
Grey Axis Research
$1.90/mg
10 mg · $18.99
checked 13 Aug 2026
Peptide Science Store
$5.50/mg
10 mg · $55.00
checked 5 Nov 2026
Grey Axis Research 65% cheaper
- Semax
Grey Axis Research
$1.90/mg
10 mg · $18.99
checked 13 Aug 2026
Peptide Science Store
$2.50/mg
30 mg · $75.00
checked 5 Nov 2026
Grey Axis Research 24% cheaper
- Sermorelin
Grey Axis Research
$7.00/mg
5 mg · $34.99
checked 13 Aug 2026
Peptide Science Store
$8.33/mg
15 mg · $125.00
checked 5 Nov 2026
Grey Axis Research 16% cheaper
- TB-500
Grey Axis Research
$3.00/mg
10 mg · $29.99
checked 13 Aug 2026
Peptide Science Store
$16.50/mg
10 mg · $165.00
checked 5 Nov 2026
Grey Axis Research 82% cheaper
- Tesamorelin
Grey Axis Research
$3.90/mg
3 × 10 mg · $116.99
checked 20 Oct 2026
Peptide Science Store
$15.00/mg
5 mg · $75.00
checked 5 Nov 2026
Grey Axis Research 74% cheaper
- Testagen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- Thymogen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$4.00/mg
20 mg · $80.00
checked 5 Nov 2026
Grey Axis Research 60% cheaper
- Thymosin Alpha-1
Grey Axis Research
$3.00/mg
10 mg · $29.99
checked 13 Aug 2026
Peptide Science Store
$13.00/mg
10 mg · $130.00
checked 5 Nov 2026
Grey Axis Research 77% cheaper
- Vesugen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- Vilon
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Grey Axis Research 51% cheaper
- VIP
Grey Axis Research
$6.00/mg
5 mg · $29.99
checked 13 Aug 2026
Peptide Science Store
$12.50/mg
6 mg · $75.00
checked 5 Nov 2026
Grey Axis Research 52% cheaper
| Peptide | Grey Axis Research | Peptide Science Store | Difference per mg |
|---|---|---|---|
| AOD-9604 | $7.00/mg 5 mg · $34.99 checked 13 Aug 2026 | $10.83/mg 6 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 35% cheaper |
| ARA-290 | $2.44/mg 16 mg · $38.99 checked 13 Aug 2026 | $5.94/mg 16 mg · $95.00 checked 5 Nov 2026 | Grey Axis Research 59% cheaper |
| BPC-157 | $2.00/mg 10 mg · $19.99 checked 13 Aug 2026 | $9.33/mg 15 mg · $140.00 checked 5 Nov 2026 | Grey Axis Research 79% cheaper |
| Bronchogen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.50/mg 20 mg · $70.00 checked 5 Nov 2026 | Grey Axis Research 54% cheaper |
| Cardiogen | $1.50/mg 20 mg · $29.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 54% cheaper |
| Cartalax | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.50/mg 20 mg · $70.00 checked 5 Nov 2026 | Grey Axis Research 54% cheaper |
| Chonluten | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| CJC-1295 NO DAC | $3.30/mg 10 mg · $32.99 checked 13 Aug 2026 | $9.90/mg 5 mg · $49.50 checked 5 Nov 2026 | Grey Axis Research 67% cheaper |
| Cortagen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| DSIP | $4.00/mg 5 mg · $19.99 checked 13 Aug 2026 | $10.00/mg 5 mg · $50.00 checked 5 Nov 2026 | Grey Axis Research 60% cheaper |
| Epithalon | $2.30/mg 10 mg · $22.99 checked 13 Aug 2026 | $4.30/mg 50 mg · $215.00 checked 5 Nov 2026 | Grey Axis Research 47% cheaper |
| GHK-Cu | $0.310/mg 100 mg · $30.99 checked 13 Aug 2026 | $1.40/mg 50 mg · $70.00 checked 5 Nov 2026 | Grey Axis Research 78% cheaper |
| GHRP-2 | $2.40/mg 10 mg · $23.99 checked 13 Aug 2026 | $5.00/mg 10 mg · $50.00 checked 5 Nov 2026 | Grey Axis Research 52% cheaper |
| GHRP-6 | $2.40/mg 10 mg · $23.99 checked 13 Aug 2026 | $5.00/mg 10 mg · $50.00 checked 5 Nov 2026 | Grey Axis Research 52% cheaper |
| Glutathione | $0.020/mg 1500 mg · $29.99 checked 13 Aug 2026 | $0.142/mg 600 mg · $85.00 checked 5 Nov 2026 | Grey Axis Research 86% cheaper |
| Hexarelin | $10.00/mg 3 mg · $29.99 checked 13 Aug 2026 | $9.00/mg 5 mg · $45.00 checked 5 Nov 2026 | Peptide Science Store 10% cheaper |
| Ipamorelin | $3.90/mg 10 mg · $38.99 checked 13 Aug 2026 | $8.00/mg 10 mg · $80.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| Kisspeptin | $5.20/mg 5 mg · $25.99 checked 13 Aug 2026 | $13.00/mg 5 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 60% cheaper |
| KPV | $2.30/mg 10 mg · $22.99 checked 13 Aug 2026 | $11.00/mg 5 mg · $55.00 checked 5 Nov 2026 | Grey Axis Research 79% cheaper |
| Livagen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| LL-37 | $6.40/mg 5 mg · $31.99 checked 13 Aug 2026 | $19.00/mg 5 mg · $95.00 checked 5 Nov 2026 | Grey Axis Research 66% cheaper |
| Melanotan 1 | $2.19/mg 10 mg · $21.95 checked 13 Aug 2026 | $5.50/mg 10 mg · $55.00 checked 5 Nov 2026 | Grey Axis Research 60% cheaper |
| MOTS-C | $1.25/mg 40 mg · $49.99 checked 13 Aug 2026 | $11.00/mg 10 mg · $110.00 checked 5 Nov 2026 | Grey Axis Research 89% cheaper |
| NAD+ | $0.050/mg 500 mg · $24.99 checked 13 Aug 2026 | $0.400/mg 750 mg · $300.00 checked 5 Nov 2026 | Grey Axis Research 88% cheaper |
| Oxytocin | $3.20/mg 10 mg · $31.99 checked 13 Aug 2026 | $6.50/mg 10 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| Pancragen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| PE-22-28 | $2.30/mg 10 mg · $22.99 checked 20 Oct 2026 | $7.50/mg 8 mg · $60.00 checked 5 Nov 2026 | Grey Axis Research 69% cheaper |
| Pinealon | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.75/mg 20 mg · $75.00 checked 5 Nov 2026 | Grey Axis Research 57% cheaper |
| Selank | $1.90/mg 10 mg · $18.99 checked 13 Aug 2026 | $5.50/mg 10 mg · $55.00 checked 5 Nov 2026 | Grey Axis Research 65% cheaper |
| Semax | $1.90/mg 10 mg · $18.99 checked 13 Aug 2026 | $2.50/mg 30 mg · $75.00 checked 5 Nov 2026 | Grey Axis Research 24% cheaper |
| Sermorelin | $7.00/mg 5 mg · $34.99 checked 13 Aug 2026 | $8.33/mg 15 mg · $125.00 checked 5 Nov 2026 | Grey Axis Research 16% cheaper |
| TB-500 | $3.00/mg 10 mg · $29.99 checked 13 Aug 2026 | $16.50/mg 10 mg · $165.00 checked 5 Nov 2026 | Grey Axis Research 82% cheaper |
| Tesamorelin | $3.90/mg 3 × 10 mg · $116.99 checked 20 Oct 2026 | $15.00/mg 5 mg · $75.00 checked 5 Nov 2026 | Grey Axis Research 74% cheaper |
| Testagen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| Thymogen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $4.00/mg 20 mg · $80.00 checked 5 Nov 2026 | Grey Axis Research 60% cheaper |
| Thymosin Alpha-1 | $3.00/mg 10 mg · $29.99 checked 13 Aug 2026 | $13.00/mg 10 mg · $130.00 checked 5 Nov 2026 | Grey Axis Research 77% cheaper |
| Vesugen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| Vilon | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Grey Axis Research 51% cheaper |
| VIP | $6.00/mg 5 mg · $29.99 checked 13 Aug 2026 | $12.50/mg 6 mg · $75.00 checked 5 Nov 2026 | Grey Axis Research 52% cheaper |
Only at Grey Axis Research: 16 peptides in the same market
Only at Peptide Science Store: 27 peptides in the same market
Grey Axis Research compared with
- Lab Ratz Research51 shared
- Peptides GG50 shared
- Peptides direct to you49 shared
- Priority Peptides48 shared
- VPeptide48 shared
- Eros Peptides47 shared
- Research1peptides47 shared
- Huaian Hanyou Peptide46 shared
- Luxe Peptides46 shared
- TrueLab Peptides46 shared
- NHOV45 shared
- Pure Lab Peptides45 shared
- Eppixlabs44 shared
- Prime Longevity Peptides44 shared
- LabFirst Peptides43 shared
- Vipris Biotechnology43 shared
- Amino Usa42 shared
- Alpha Peptides41 shared
- Catalyst Peptides41 shared
- Peptide Science Now41 shared
- Raw Amino41 shared
- Core Peptides40 shared
- Grey Matters Research40 shared
- Nexus Bio Life40 shared
- Cenexa Labs39 shared
- OP Labs39 shared
- Nordsci Peptides38 shared
- SQS Research38 shared
- Bridge Research36 shared
- Biotech Peptides35 shared
Peptide Science Store compared with
- Peptide Science Now63 shared
- Nordsci Peptides59 shared
- Huaian Hanyou Peptide58 shared
- Core Peptides55 shared
- Peptides direct to you55 shared
- Raw Amino55 shared
- Peptides GG54 shared
- Luxe Peptides53 shared
- Lab Ratz Research51 shared
- Amino Usa50 shared
- NHOV48 shared
- Prime Longevity Peptides48 shared
- Vipris Biotechnology48 shared
- VPeptide47 shared
- Cenexa Labs45 shared
- Nexus Bio Life45 shared
- Research1peptides45 shared
- Biotech Peptides44 shared
- OP Labs44 shared
- TrueLab Peptides44 shared
- Priority Peptides43 shared
- Eros Peptides42 shared
- Grey Matters Research41 shared
- LabFirst Peptides39 shared
- Pure Lab Peptides39 shared
- Eppixlabs38 shared
- Catalyst Peptides37 shared
- Alpha Peptides35 shared
- Bridge Research35 shared
- SQS Research31 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.