Vendor comparison
LabFirst Peptides vs Peptide Science Store
LabFirst Peptides is cheaper per mg on 24 of the 39 peptides they share; Peptide Science Store on 14, the same price on 1.
Across all 39, LabFirst Peptides’s price per mg is a median 14% lower than Peptide Science Store’s.
- Listings on the index
- 58
- Cheaper per mg on
- 24 of 39 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 6 Nov 2026
- Listings on the index
- 66
- Cheaper per mg on
- 14 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.
- Adipotide
LabFirst Peptides
$10.50/mg
10 mg · $105.00
checked 6 Nov 2026
Peptide Science Store
$8.90/mg
10 mg · $89.00
checked 5 Nov 2026
Peptide Science Store 15% cheaper
- AICAR
LabFirst Peptides
$1.20/mg
50 mg · $60.00
checked 6 Nov 2026
Peptide Science Store
$1.30/mg
50 mg · $65.00
checked 5 Nov 2026
LabFirst Peptides 8% cheaper
- AOD-9604
LabFirst Peptides
$7.50/mg
10 mg · $75.00
checked 6 Nov 2026
Peptide Science Store
$10.83/mg
6 mg · $65.00
checked 5 Nov 2026
LabFirst Peptides 31% cheaper
- ARA-290
LabFirst Peptides
$7.00/mg
10 mg · $70.00
checked 6 Nov 2026
Peptide Science Store
$5.94/mg
16 mg · $95.00
checked 5 Nov 2026
Peptide Science Store 15% cheaper
- BPC-157
LabFirst Peptides
$5.90/mg
10 mg · $59.00
checked 6 Nov 2026
Peptide Science Store
$9.33/mg
15 mg · $140.00
checked 5 Nov 2026
LabFirst Peptides 37% cheaper
- Bronchogen
LabFirst Peptides
$4.00/mg
20 mg · $80.00
checked 6 Nov 2026
Peptide Science Store
$3.50/mg
20 mg · $70.00
checked 5 Nov 2026
Peptide Science Store 13% cheaper
- Cardiogen
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Peptide Science Store 24% cheaper
- Cartalax
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Peptide Science Store
$3.50/mg
20 mg · $70.00
checked 5 Nov 2026
Peptide Science Store 18% cheaper
- CJC-1295 NO DAC
LabFirst Peptides
$6.80/mg
5 mg · $34.00
checked 6 Nov 2026
Peptide Science Store
$9.90/mg
5 mg · $49.50
checked 5 Nov 2026
LabFirst Peptides 31% cheaper
- Cortagen
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Peptide Science Store 24% cheaper
- DSIP
LabFirst Peptides
$5.40/mg
10 mg · $54.00
checked 6 Nov 2026
Peptide Science Store
$10.00/mg
5 mg · $50.00
checked 5 Nov 2026
LabFirst Peptides 46% cheaper
- Epithalon
LabFirst Peptides
$2.18/mg
50 mg · $109.00
checked 6 Nov 2026
Peptide Science Store
$4.30/mg
50 mg · $215.00
checked 5 Nov 2026
LabFirst Peptides 49% cheaper
- FOXO4-DRI
LabFirst Peptides
$17.50/mg
10 mg · $175.00
checked 6 Nov 2026
Peptide Science Store
$30.00/mg
10 mg · $300.00
checked 5 Nov 2026
LabFirst Peptides 42% cheaper
- GHK-Cu
LabFirst Peptides
$0.590/mg
100 mg · $59.00
checked 6 Nov 2026
Peptide Science Store
$1.40/mg
50 mg · $70.00
checked 5 Nov 2026
LabFirst Peptides 58% cheaper
- GHRP-2
LabFirst Peptides
$5.33/mg
15 mg · $80.00
checked 6 Nov 2026
Peptide Science Store
$5.00/mg
10 mg · $50.00
checked 5 Nov 2026
Peptide Science Store 6% cheaper
- GHRP-6
LabFirst Peptides
$7.50/mg
10 mg · $75.00
checked 6 Nov 2026
Peptide Science Store
$5.00/mg
10 mg · $50.00
checked 5 Nov 2026
Peptide Science Store 33% cheaper
- Glutathione
LabFirst Peptides
$0.037/mg
1500 mg · $55.00
checked 6 Nov 2026
Peptide Science Store
$0.142/mg
600 mg · $85.00
checked 5 Nov 2026
LabFirst Peptides 74% cheaper
- Gonadorelin
LabFirst Peptides
$27.50/mg
2 mg · $55.00
checked 6 Nov 2026
Peptide Science Store
$8.50/mg
10 mg · $85.00
checked 5 Nov 2026
Peptide Science Store 69% cheaper
- IGF-1 LR3
LabFirst Peptides
$95.00/mg
1 mg · $95.00
checked 6 Nov 2026
Peptide Science Store
$110.00/mg
1 mg · $110.00
checked 5 Nov 2026
LabFirst Peptides 14% cheaper
- Ipamorelin
LabFirst Peptides
$6.50/mg
10 mg · $65.00
checked 6 Nov 2026
Peptide Science Store
$8.00/mg
10 mg · $80.00
checked 5 Nov 2026
LabFirst Peptides 19% cheaper
- Kisspeptin
LabFirst Peptides
$8.50/mg
10 mg · $85.00
checked 6 Nov 2026
Peptide Science Store
$13.00/mg
5 mg · $65.00
checked 5 Nov 2026
LabFirst Peptides 35% cheaper
- KPV
LabFirst Peptides
$4.90/mg
10 mg · $49.00
checked 6 Nov 2026
Peptide Science Store
$11.00/mg
5 mg · $55.00
checked 5 Nov 2026
LabFirst Peptides 55% cheaper
- LL-37
LabFirst Peptides
$30.00/mg
5 mg · $150.00
checked 6 Nov 2026
Peptide Science Store
$19.00/mg
5 mg · $95.00
checked 5 Nov 2026
Peptide Science Store 37% cheaper
- Melanotan 1
LabFirst Peptides
$4.00/mg
10 mg · $40.00
checked 6 Nov 2026
Peptide Science Store
$5.50/mg
10 mg · $55.00
checked 5 Nov 2026
LabFirst Peptides 27% cheaper
- MOTS-C
LabFirst Peptides
$2.50/mg
40 mg · $100.00
checked 6 Nov 2026
Peptide Science Store
$11.00/mg
10 mg · $110.00
checked 5 Nov 2026
LabFirst Peptides 77% cheaper
- NAD+
LabFirst Peptides
$0.110/mg
1000 mg · $110.00
checked 6 Nov 2026
Peptide Science Store
$0.400/mg
750 mg · $300.00
checked 5 Nov 2026
LabFirst Peptides 73% cheaper
- Oxytocin
LabFirst Peptides
$4.50/mg
10 mg · $45.00
checked 6 Nov 2026
Peptide Science Store
$6.50/mg
10 mg · $65.00
checked 5 Nov 2026
LabFirst Peptides 31% cheaper
- P21
LabFirst Peptides
$19.00/mg
5 mg · $95.00
checked 6 Nov 2026
Peptide Science Store
$24.00/mg
5 mg · $120.00
checked 5 Nov 2026
LabFirst Peptides 21% cheaper
- PE-22-28
LabFirst Peptides
$7.00/mg
10 mg · $70.00
checked 6 Nov 2026
Peptide Science Store
$7.50/mg
8 mg · $60.00
checked 5 Nov 2026
LabFirst Peptides 7% cheaper
- PEG-MGF
LabFirst Peptides
$40.00/mg
2 mg · $80.00
checked 6 Nov 2026
Peptide Science Store
$19.00/mg
5 mg · $95.00
checked 5 Nov 2026
Peptide Science Store 53% cheaper
- Pinealon
LabFirst Peptides
$4.25/mg
20 mg · $85.00
checked 6 Nov 2026
Peptide Science Store
$3.75/mg
20 mg · $75.00
checked 5 Nov 2026
Peptide Science Store 12% cheaper
- Selank
LabFirst Peptides
$2.63/mg
30 mg · $79.00
checked 6 Nov 2026
Peptide Science Store
$5.50/mg
10 mg · $55.00
checked 5 Nov 2026
LabFirst Peptides 52% cheaper
- Semax
LabFirst Peptides
$2.30/mg
30 mg · $69.00
checked 6 Nov 2026
Peptide Science Store
$2.50/mg
30 mg · $75.00
checked 5 Nov 2026
LabFirst Peptides 8% cheaper
- Sermorelin
LabFirst Peptides
$7.50/mg
10 mg · $75.00
checked 6 Nov 2026
Peptide Science Store
$8.33/mg
15 mg · $125.00
checked 5 Nov 2026
LabFirst Peptides 10% cheaper
- TB-500
LabFirst Peptides
$7.50/mg
10 mg · $75.00
checked 6 Nov 2026
Peptide Science Store
$16.50/mg
10 mg · $165.00
checked 5 Nov 2026
LabFirst Peptides 55% cheaper
- Tesamorelin
LabFirst Peptides
$7.50/mg
20 mg · $150.00
checked 6 Nov 2026
Peptide Science Store
$15.00/mg
5 mg · $75.00
checked 5 Nov 2026
LabFirst Peptides 50% cheaper
- Thymosin Alpha-1
LabFirst Peptides
$13.00/mg
10 mg · $130.00
checked 6 Nov 2026
Peptide Science Store
$13.00/mg
10 mg · $130.00
checked 5 Nov 2026
Same price
- Vesugen
LabFirst Peptides
$6.00/mg
10 mg · $60.00
checked 6 Nov 2026
Peptide Science Store
$3.25/mg
20 mg · $65.00
checked 5 Nov 2026
Peptide Science Store 46% cheaper
- VIP
LabFirst Peptides
$13.00/mg
5 mg · $65.00
checked 6 Nov 2026
Peptide Science Store
$12.50/mg
6 mg · $75.00
checked 5 Nov 2026
Peptide Science Store 4% cheaper
| Peptide | LabFirst Peptides | Peptide Science Store | Difference per mg |
|---|---|---|---|
| Adipotide | $10.50/mg 10 mg · $105.00 checked 6 Nov 2026 | $8.90/mg 10 mg · $89.00 checked 5 Nov 2026 | Peptide Science Store 15% cheaper |
| AICAR | $1.20/mg 50 mg · $60.00 checked 6 Nov 2026 | $1.30/mg 50 mg · $65.00 checked 5 Nov 2026 | LabFirst Peptides 8% cheaper |
| AOD-9604 | $7.50/mg 10 mg · $75.00 checked 6 Nov 2026 | $10.83/mg 6 mg · $65.00 checked 5 Nov 2026 | LabFirst Peptides 31% cheaper |
| ARA-290 | $7.00/mg 10 mg · $70.00 checked 6 Nov 2026 | $5.94/mg 16 mg · $95.00 checked 5 Nov 2026 | Peptide Science Store 15% cheaper |
| BPC-157 | $5.90/mg 10 mg · $59.00 checked 6 Nov 2026 | $9.33/mg 15 mg · $140.00 checked 5 Nov 2026 | LabFirst Peptides 37% cheaper |
| Bronchogen | $4.00/mg 20 mg · $80.00 checked 6 Nov 2026 | $3.50/mg 20 mg · $70.00 checked 5 Nov 2026 | Peptide Science Store 13% cheaper |
| Cardiogen | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Peptide Science Store 24% cheaper |
| Cartalax | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | $3.50/mg 20 mg · $70.00 checked 5 Nov 2026 | Peptide Science Store 18% cheaper |
| CJC-1295 NO DAC | $6.80/mg 5 mg · $34.00 checked 6 Nov 2026 | $9.90/mg 5 mg · $49.50 checked 5 Nov 2026 | LabFirst Peptides 31% cheaper |
| Cortagen | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Peptide Science Store 24% cheaper |
| DSIP | $5.40/mg 10 mg · $54.00 checked 6 Nov 2026 | $10.00/mg 5 mg · $50.00 checked 5 Nov 2026 | LabFirst Peptides 46% cheaper |
| Epithalon | $2.18/mg 50 mg · $109.00 checked 6 Nov 2026 | $4.30/mg 50 mg · $215.00 checked 5 Nov 2026 | LabFirst Peptides 49% cheaper |
| FOXO4-DRI | $17.50/mg 10 mg · $175.00 checked 6 Nov 2026 | $30.00/mg 10 mg · $300.00 checked 5 Nov 2026 | LabFirst Peptides 42% cheaper |
| GHK-Cu | $0.590/mg 100 mg · $59.00 checked 6 Nov 2026 | $1.40/mg 50 mg · $70.00 checked 5 Nov 2026 | LabFirst Peptides 58% cheaper |
| GHRP-2 | $5.33/mg 15 mg · $80.00 checked 6 Nov 2026 | $5.00/mg 10 mg · $50.00 checked 5 Nov 2026 | Peptide Science Store 6% cheaper |
| GHRP-6 | $7.50/mg 10 mg · $75.00 checked 6 Nov 2026 | $5.00/mg 10 mg · $50.00 checked 5 Nov 2026 | Peptide Science Store 33% cheaper |
| Glutathione | $0.037/mg 1500 mg · $55.00 checked 6 Nov 2026 | $0.142/mg 600 mg · $85.00 checked 5 Nov 2026 | LabFirst Peptides 74% cheaper |
| Gonadorelin | $27.50/mg 2 mg · $55.00 checked 6 Nov 2026 | $8.50/mg 10 mg · $85.00 checked 5 Nov 2026 | Peptide Science Store 69% cheaper |
| IGF-1 LR3 | $95.00/mg 1 mg · $95.00 checked 6 Nov 2026 | $110.00/mg 1 mg · $110.00 checked 5 Nov 2026 | LabFirst Peptides 14% cheaper |
| Ipamorelin | $6.50/mg 10 mg · $65.00 checked 6 Nov 2026 | $8.00/mg 10 mg · $80.00 checked 5 Nov 2026 | LabFirst Peptides 19% cheaper |
| Kisspeptin | $8.50/mg 10 mg · $85.00 checked 6 Nov 2026 | $13.00/mg 5 mg · $65.00 checked 5 Nov 2026 | LabFirst Peptides 35% cheaper |
| KPV | $4.90/mg 10 mg · $49.00 checked 6 Nov 2026 | $11.00/mg 5 mg · $55.00 checked 5 Nov 2026 | LabFirst Peptides 55% cheaper |
| LL-37 | $30.00/mg 5 mg · $150.00 checked 6 Nov 2026 | $19.00/mg 5 mg · $95.00 checked 5 Nov 2026 | Peptide Science Store 37% cheaper |
| Melanotan 1 | $4.00/mg 10 mg · $40.00 checked 6 Nov 2026 | $5.50/mg 10 mg · $55.00 checked 5 Nov 2026 | LabFirst Peptides 27% cheaper |
| MOTS-C | $2.50/mg 40 mg · $100.00 checked 6 Nov 2026 | $11.00/mg 10 mg · $110.00 checked 5 Nov 2026 | LabFirst Peptides 77% cheaper |
| NAD+ | $0.110/mg 1000 mg · $110.00 checked 6 Nov 2026 | $0.400/mg 750 mg · $300.00 checked 5 Nov 2026 | LabFirst Peptides 73% cheaper |
| Oxytocin | $4.50/mg 10 mg · $45.00 checked 6 Nov 2026 | $6.50/mg 10 mg · $65.00 checked 5 Nov 2026 | LabFirst Peptides 31% cheaper |
| P21 | $19.00/mg 5 mg · $95.00 checked 6 Nov 2026 | $24.00/mg 5 mg · $120.00 checked 5 Nov 2026 | LabFirst Peptides 21% cheaper |
| PE-22-28 | $7.00/mg 10 mg · $70.00 checked 6 Nov 2026 | $7.50/mg 8 mg · $60.00 checked 5 Nov 2026 | LabFirst Peptides 7% cheaper |
| PEG-MGF | $40.00/mg 2 mg · $80.00 checked 6 Nov 2026 | $19.00/mg 5 mg · $95.00 checked 5 Nov 2026 | Peptide Science Store 53% cheaper |
| Pinealon | $4.25/mg 20 mg · $85.00 checked 6 Nov 2026 | $3.75/mg 20 mg · $75.00 checked 5 Nov 2026 | Peptide Science Store 12% cheaper |
| Selank | $2.63/mg 30 mg · $79.00 checked 6 Nov 2026 | $5.50/mg 10 mg · $55.00 checked 5 Nov 2026 | LabFirst Peptides 52% cheaper |
| Semax | $2.30/mg 30 mg · $69.00 checked 6 Nov 2026 | $2.50/mg 30 mg · $75.00 checked 5 Nov 2026 | LabFirst Peptides 8% cheaper |
| Sermorelin | $7.50/mg 10 mg · $75.00 checked 6 Nov 2026 | $8.33/mg 15 mg · $125.00 checked 5 Nov 2026 | LabFirst Peptides 10% cheaper |
| TB-500 | $7.50/mg 10 mg · $75.00 checked 6 Nov 2026 | $16.50/mg 10 mg · $165.00 checked 5 Nov 2026 | LabFirst Peptides 55% cheaper |
| Tesamorelin | $7.50/mg 20 mg · $150.00 checked 6 Nov 2026 | $15.00/mg 5 mg · $75.00 checked 5 Nov 2026 | LabFirst Peptides 50% cheaper |
| Thymosin Alpha-1 | $13.00/mg 10 mg · $130.00 checked 6 Nov 2026 | $13.00/mg 10 mg · $130.00 checked 5 Nov 2026 | Same price |
| Vesugen | $6.00/mg 10 mg · $60.00 checked 6 Nov 2026 | $3.25/mg 20 mg · $65.00 checked 5 Nov 2026 | Peptide Science Store 46% cheaper |
| VIP | $13.00/mg 5 mg · $65.00 checked 6 Nov 2026 | $12.50/mg 6 mg · $75.00 checked 5 Nov 2026 | Peptide Science Store 4% cheaper |
Only at LabFirst Peptides: 19 peptides in the same market
Only at Peptide Science Store: 27 peptides in the same market
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
- Grey Matters Research40 shared
- OP Labs40 shared
- SQS Research40 shared
- TrueLab Peptides40 shared
- Cenexa Labs39 shared
- Eros Peptides38 shared
- Nexus Bio Life38 shared
- Nordsci Peptides38 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
- Grey Axis Research39 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.