Vendor comparison
Grey Axis Research vs Peptide Science Now
Grey Axis Research is cheaper per mg on 40 of the 41 peptides they share; Peptide Science Now on 1.
Across all 41, Grey Axis Research’s price per mg is a median 52% lower than Peptide Science Now’s.
- Listings on the index
- 55
- Cheaper per mg on
- 40 of 41 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 20 Oct 2026
- Listings on the index
- 69
- Cheaper per mg on
- 1 of 41 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 30 Oct 2026
Retail 41
Purchases of fewer than 10 vials.
- AOD-9604
Grey Axis Research
$7.00/mg
5 mg · $34.99
checked 13 Aug 2026
Peptide Science Now
$10.83/mg
6 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 35% cheaper
- ARA-290
Grey Axis Research
$2.44/mg
16 mg · $38.99
checked 13 Aug 2026
Peptide Science Now
$4.69/mg
16 mg · $75.00
checked 30 Oct 2026
Grey Axis Research 48% cheaper
- BPC-157
Grey Axis Research
$2.00/mg
10 mg · $19.99
checked 13 Aug 2026
Peptide Science Now
$9.33/mg
15 mg · $140.00
checked 30 Oct 2026
Grey Axis Research 79% cheaper
- Bronchogen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.00/mg
20 mg · $60.00
checked 30 Oct 2026
Grey Axis Research 47% cheaper
- Cagrilintide
Grey Axis Research
$7.40/mg
5 mg · $36.99
checked 13 Aug 2026
Peptide Science Now
$14.50/mg
10 mg · $145.00
checked 30 Oct 2026
Grey Axis Research 49% cheaper
- Cardiogen
Grey Axis Research
$1.50/mg
20 mg · $29.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 54% cheaper
- Cartalax
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.00/mg
20 mg · $60.00
checked 30 Oct 2026
Grey Axis Research 47% cheaper
- Chonluten
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 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 Now
$9.90/mg
5 mg · $49.50
checked 30 Oct 2026
Grey Axis Research 67% cheaper
- Cortagen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- DSIP
Grey Axis Research
$4.00/mg
5 mg · $19.99
checked 13 Aug 2026
Peptide Science Now
$10.00/mg
5 mg · $50.00
checked 30 Oct 2026
Grey Axis Research 60% cheaper
- Epithalon
Grey Axis Research
$2.30/mg
10 mg · $22.99
checked 13 Aug 2026
Peptide Science Now
$3.80/mg
50 mg · $190.00
checked 30 Oct 2026
Grey Axis Research 40% cheaper
- GHK-Cu
Grey Axis Research
$0.310/mg
100 mg · $30.99
checked 13 Aug 2026
Peptide Science Now
$1.40/mg
50 mg · $70.00
checked 30 Oct 2026
Grey Axis Research 78% cheaper
- GHRP-2
Grey Axis Research
$2.40/mg
10 mg · $23.99
checked 13 Aug 2026
Peptide Science Now
$5.00/mg
10 mg · $50.00
checked 30 Oct 2026
Grey Axis Research 52% cheaper
- GHRP-6
Grey Axis Research
$2.40/mg
10 mg · $23.99
checked 13 Aug 2026
Peptide Science Now
$5.00/mg
10 mg · $50.00
checked 30 Oct 2026
Grey Axis Research 52% cheaper
- Glutathione
Grey Axis Research
$0.020/mg
1500 mg · $29.99
checked 13 Aug 2026
Peptide Science Now
$0.142/mg
600 mg · $85.00
checked 30 Oct 2026
Grey Axis Research 86% cheaper
- Hexarelin
Grey Axis Research
$10.00/mg
3 mg · $29.99
checked 13 Aug 2026
Peptide Science Now
$9.00/mg
5 mg · $45.00
checked 30 Oct 2026
Peptide Science Now 10% cheaper
- Ipamorelin
Grey Axis Research
$3.90/mg
10 mg · $38.99
checked 13 Aug 2026
Peptide Science Now
$8.00/mg
10 mg · $80.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- Kisspeptin
Grey Axis Research
$5.20/mg
5 mg · $25.99
checked 13 Aug 2026
Peptide Science Now
$13.00/mg
5 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 60% cheaper
- KPV
Grey Axis Research
$2.30/mg
10 mg · $22.99
checked 13 Aug 2026
Peptide Science Now
$11.00/mg
5 mg · $55.00
checked 30 Oct 2026
Grey Axis Research 79% cheaper
- Livagen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- LL-37
Grey Axis Research
$6.40/mg
5 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$19.00/mg
5 mg · $95.00
checked 30 Oct 2026
Grey Axis Research 66% cheaper
- Melanotan 1
Grey Axis Research
$2.19/mg
10 mg · $21.95
checked 13 Aug 2026
Peptide Science Now
$5.50/mg
10 mg · $55.00
checked 30 Oct 2026
Grey Axis Research 60% cheaper
- MOTS-C
Grey Axis Research
$1.25/mg
40 mg · $49.99
checked 13 Aug 2026
Peptide Science Now
$11.00/mg
10 mg · $110.00
checked 30 Oct 2026
Grey Axis Research 89% cheaper
- NAD+
Grey Axis Research
$0.050/mg
500 mg · $24.99
checked 13 Aug 2026
Peptide Science Now
$0.400/mg
750 mg · $300.00
checked 30 Oct 2026
Grey Axis Research 88% cheaper
- Oxytocin
Grey Axis Research
$3.20/mg
10 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$6.50/mg
10 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- Pancragen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- Pinealon
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.75/mg
20 mg · $75.00
checked 30 Oct 2026
Grey Axis Research 57% cheaper
- Selank
Grey Axis Research
$1.90/mg
10 mg · $18.99
checked 13 Aug 2026
Peptide Science Now
$5.50/mg
10 mg · $55.00
checked 30 Oct 2026
Grey Axis Research 65% cheaper
- Semaglutide
Grey Axis Research
$3.40/mg
10 mg · $33.99
checked 13 Aug 2026
Peptide Science Now
$22.50/mg
10 mg · $225.00
checked 30 Oct 2026
Grey Axis Research 85% cheaper
- Semax
Grey Axis Research
$1.90/mg
10 mg · $18.99
checked 13 Aug 2026
Peptide Science Now
$2.50/mg
30 mg · $75.00
checked 30 Oct 2026
Grey Axis Research 24% cheaper
- Sermorelin
Grey Axis Research
$7.00/mg
5 mg · $34.99
checked 13 Aug 2026
Peptide Science Now
$8.33/mg
15 mg · $125.00
checked 30 Oct 2026
Grey Axis Research 16% cheaper
- SS-31
Grey Axis Research
$1.96/mg
50 mg · $97.99
checked 13 Aug 2026
Peptide Science Now
$6.00/mg
25 mg · $150.00
checked 30 Oct 2026
Grey Axis Research 67% cheaper
- TB-500
Grey Axis Research
$3.00/mg
10 mg · $29.99
checked 13 Aug 2026
Peptide Science Now
$13.50/mg
10 mg · $135.00
checked 30 Oct 2026
Grey Axis Research 78% cheaper
- Testagen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- Thymogen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$4.00/mg
20 mg · $80.00
checked 30 Oct 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 Now
$13.00/mg
10 mg · $130.00
checked 30 Oct 2026
Grey Axis Research 77% cheaper
- Tirzepatide
Grey Axis Research
$1.35/mg
100 mg · $134.99
checked 13 Aug 2026
Peptide Science Now
$16.33/mg
15 mg · $245.00
checked 30 Oct 2026
Grey Axis Research 92% cheaper
- Vesugen
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- Vilon
Grey Axis Research
$1.60/mg
20 mg · $31.99
checked 13 Aug 2026
Peptide Science Now
$3.25/mg
20 mg · $65.00
checked 30 Oct 2026
Grey Axis Research 51% cheaper
- VIP
Grey Axis Research
$6.00/mg
5 mg · $29.99
checked 13 Aug 2026
Peptide Science Now
$12.50/mg
6 mg · $75.00
checked 30 Oct 2026
Grey Axis Research 52% cheaper
| Peptide | Grey Axis Research | Peptide Science Now | Difference per mg |
|---|---|---|---|
| AOD-9604 | $7.00/mg 5 mg · $34.99 checked 13 Aug 2026 | $10.83/mg 6 mg · $65.00 checked 30 Oct 2026 | Grey Axis Research 35% cheaper |
| ARA-290 | $2.44/mg 16 mg · $38.99 checked 13 Aug 2026 | $4.69/mg 16 mg · $75.00 checked 30 Oct 2026 | Grey Axis Research 48% cheaper |
| BPC-157 | $2.00/mg 10 mg · $19.99 checked 13 Aug 2026 | $9.33/mg 15 mg · $140.00 checked 30 Oct 2026 | Grey Axis Research 79% cheaper |
| Bronchogen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.00/mg 20 mg · $60.00 checked 30 Oct 2026 | Grey Axis Research 47% cheaper |
| Cagrilintide | $7.40/mg 5 mg · $36.99 checked 13 Aug 2026 | $14.50/mg 10 mg · $145.00 checked 30 Oct 2026 | Grey Axis Research 49% cheaper |
| Cardiogen | $1.50/mg 20 mg · $29.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 30 Oct 2026 | Grey Axis Research 54% cheaper |
| Cartalax | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.00/mg 20 mg · $60.00 checked 30 Oct 2026 | Grey Axis Research 47% cheaper |
| Chonluten | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 2026 | Grey Axis Research 60% cheaper |
| Epithalon | $2.30/mg 10 mg · $22.99 checked 13 Aug 2026 | $3.80/mg 50 mg · $190.00 checked 30 Oct 2026 | Grey Axis Research 40% cheaper |
| GHK-Cu | $0.310/mg 100 mg · $30.99 checked 13 Aug 2026 | $1.40/mg 50 mg · $70.00 checked 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 2026 | Peptide Science Now 10% cheaper |
| Ipamorelin | $3.90/mg 10 mg · $38.99 checked 13 Aug 2026 | $8.00/mg 10 mg · $80.00 checked 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 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 30 Oct 2026 | Grey Axis Research 51% cheaper |
| Pinealon | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.75/mg 20 mg · $75.00 checked 30 Oct 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 30 Oct 2026 | Grey Axis Research 65% cheaper |
| Semaglutide | $3.40/mg 10 mg · $33.99 checked 13 Aug 2026 | $22.50/mg 10 mg · $225.00 checked 30 Oct 2026 | Grey Axis Research 85% cheaper |
| Semax | $1.90/mg 10 mg · $18.99 checked 13 Aug 2026 | $2.50/mg 30 mg · $75.00 checked 30 Oct 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 30 Oct 2026 | Grey Axis Research 16% cheaper |
| SS-31 | $1.96/mg 50 mg · $97.99 checked 13 Aug 2026 | $6.00/mg 25 mg · $150.00 checked 30 Oct 2026 | Grey Axis Research 67% cheaper |
| TB-500 | $3.00/mg 10 mg · $29.99 checked 13 Aug 2026 | $13.50/mg 10 mg · $135.00 checked 30 Oct 2026 | Grey Axis Research 78% cheaper |
| Testagen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 30 Oct 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 30 Oct 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 30 Oct 2026 | Grey Axis Research 77% cheaper |
| Tirzepatide | $1.35/mg 100 mg · $134.99 checked 13 Aug 2026 | $16.33/mg 15 mg · $245.00 checked 30 Oct 2026 | Grey Axis Research 92% cheaper |
| Vesugen | $1.60/mg 20 mg · $31.99 checked 13 Aug 2026 | $3.25/mg 20 mg · $65.00 checked 30 Oct 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 30 Oct 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 30 Oct 2026 | Grey Axis Research 52% cheaper |
Only at Grey Axis Research: 14 peptides in the same market
Only at Peptide Science Now: 28 peptides in the same market
- Adipotide
- AICAR
- B7-33
- Follistatin-315
- Follistatin-344
- FOXO4-DRI
- GHK Basic
- GHRH
- Gonadorelin
- hGH Fragment 176-191
- Humanin
- IGF-1 LR3
- MGF
- N-Acetyl Epithalon Amidate
- N-Acetyl Selank Amidate
- N-Acetyl Semax Amidate
- P21
- PEG-MGF
- PNC-27
- Prostamax
- Retatrutide
- TB-500 Fragment
- Thymalin
- Triptorelin
- Vesilute
- Melanotan 2(Bulk)
- PT-141(Bulk)
- Tesamorelin(Bulk)
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
- Raw Amino41 shared
- Core Peptides40 shared
- Grey Matters Research40 shared
- Nexus Bio Life40 shared
- Cenexa Labs39 shared
- OP Labs39 shared
- Peptide Science Store39 shared
- Nordsci Peptides38 shared
- SQS Research38 shared
- Bridge Research36 shared
- Biotech Peptides35 shared
Peptide Science Now compared with
- Peptide Science Store63 shared
- Huaian Hanyou Peptide58 shared
- Peptides direct to you58 shared
- Nordsci Peptides57 shared
- Lab Ratz Research53 shared
- Peptides GG53 shared
- Core Peptides52 shared
- Raw Amino52 shared
- Luxe Peptides51 shared
- NHOV51 shared
- Vipris Biotechnology51 shared
- Amino Usa49 shared
- VPeptide49 shared
- Nexus Bio Life47 shared
- Prime Longevity Peptides45 shared
- Priority Peptides45 shared
- Research1peptides45 shared
- TrueLab Peptides43 shared
- Biotech Peptides42 shared
- Cenexa Labs42 shared
- LabFirst Peptides42 shared
- OP Labs42 shared
- Pure Lab Peptides42 shared
- Grey Matters Research41 shared
- Catalyst Peptides40 shared
- Eppixlabs40 shared
- Eros Peptides40 shared
- Alpha Peptides39 shared
- Bridge Research37 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.