Vendor comparison
Alpha Peptides vs Catalyst Peptides
Alpha Peptides is cheaper per mg on 42 of the 45 peptides they share; Catalyst Peptides on 3.
Across all 45, Alpha Peptides’s price per mg is a median 42% lower than Catalyst Peptides’s.
- Listings on the index
- 53
- Cheaper per mg on
- 42 of 45 shared
- Certificates of analysis on file
- none yet
- Ships from
- United States
- Latest price check
- 4 Nov 2026
- Listings on the index
- 55
- Cheaper per mg on
- 3 of 45 shared
- Certificates of analysis on file
- none yet
- Ships from
- not stated
- Latest price check
- 21 Oct 2026
Retail 45
Purchases of fewer than 10 vials.
- 5-Amino-1MQ
Alpha Peptides
$3.31/mg
10 mg · $33.12
checked 26 Aug 2026
Catalyst Peptides
$1.50/mg
50 mg · $75.00
checked 21 Oct 2026
Catalyst Peptides 55% cheaper
- AOD-9604
Alpha Peptides
$4.58/mg
10 mg · $45.75
checked 26 Aug 2026
Catalyst Peptides
$9.60/mg
10 mg · $96.00
checked 21 Oct 2026
Alpha Peptides 52% cheaper
- ARA-290
Alpha Peptides
$3.60/mg
10 mg · $36.00
checked 26 Aug 2026
Catalyst Peptides
$5.90/mg
10 mg · $59.00
checked 21 Oct 2026
Alpha Peptides 39% cheaper
- BPC-157
Alpha Peptides
$2.73/mg
10 mg · $27.29
checked 4 Nov 2026
Catalyst Peptides
$5.40/mg
10 mg · $54.00
checked 21 Oct 2026
Alpha Peptides 49% cheaper
- Cagrilintide
Alpha Peptides
$9.60/mg
10 mg · $95.99
checked 26 Aug 2026
Catalyst Peptides
$12.60/mg
10 mg · $126.00
checked 21 Oct 2026
Alpha Peptides 24% cheaper
- CJC-1295
Alpha Peptides
$6.80/mg
5 mg · $33.99
checked 26 Aug 2026
Catalyst Peptides
$4.50/mg
10 mg · $45.00
checked 21 Oct 2026
Catalyst Peptides 34% cheaper
- DSIP
Alpha Peptides
$4.29/mg
5 mg · $21.45
checked 4 Nov 2026
Catalyst Peptides
$5.20/mg
10 mg · $52.00
checked 21 Oct 2026
Alpha Peptides 18% cheaper
- Epithalon
Alpha Peptides
$2.63/mg
10 mg · $26.32
checked 4 Nov 2026
Catalyst Peptides
$3.15/mg
10 mg · $31.50
checked 21 Oct 2026
Alpha Peptides 16% cheaper
- FOXO4-DRI
Alpha Peptides
$6.26/mg
10 mg · $62.63
checked 26 Aug 2026
Catalyst Peptides
$31.50/mg
10 mg · $315.00
checked 21 Oct 2026
Alpha Peptides 80% cheaper
- GHK-Cu
Alpha Peptides
$0.504/mg
50 mg · $25.19
checked 4 Nov 2026
Catalyst Peptides
$0.700/mg
100 mg · $70.00
checked 21 Oct 2026
Alpha Peptides 28% cheaper
- GHRP-2
Alpha Peptides
$2.86/mg
5 mg · $14.32
checked 26 Aug 2026
Catalyst Peptides
$5.00/mg
10 mg · $50.00
checked 21 Oct 2026
Alpha Peptides 43% cheaper
- GHRP-6
Alpha Peptides
$2.86/mg
5 mg · $14.32
checked 26 Aug 2026
Catalyst Peptides
$5.00/mg
10 mg · $50.00
checked 21 Oct 2026
Alpha Peptides 43% cheaper
- GLOW
Alpha Peptides
$0.726/mg
70 mg · $50.83
checked 4 Oct 2026
Catalyst Peptides
$1.54/mg
70 mg · $108.00
checked 21 Oct 2026
Alpha Peptides 53% cheaper
- Glutathione
Alpha Peptides
$0.025/mg
1500 mg · $36.83
checked 26 Aug 2026
Catalyst Peptides
$0.051/mg
1500 mg · $77.00
checked 21 Oct 2026
Alpha Peptides 52% cheaper
- Hexarelin
Alpha Peptides
$5.91/mg
5 mg · $29.53
checked 26 Aug 2026
Catalyst Peptides
$13.00/mg
5 mg · $65.00
checked 21 Oct 2026
Alpha Peptides 55% cheaper
- IGF-1 LR3
Alpha Peptides
$45.47/mg
1 mg · $45.47
checked 26 Aug 2026
Catalyst Peptides
$75.00/mg
1 mg · $75.00
checked 21 Oct 2026
Alpha Peptides 39% cheaper
- Ipamorelin
Alpha Peptides
$2.65/mg
10 mg · $26.51
checked 4 Nov 2026
Catalyst Peptides
$5.60/mg
10 mg · $56.00
checked 21 Oct 2026
Alpha Peptides 53% cheaper
- Kisspeptin
Alpha Peptides
$2.74/mg
10 mg · $27.37
checked 26 Aug 2026
Catalyst Peptides
$5.25/mg
10 mg · $52.50
checked 21 Oct 2026
Alpha Peptides 48% cheaper
- KLOW
Alpha Peptides
$0.885/mg
80 mg · $70.79
checked 4 Oct 2026
Catalyst Peptides
$1.75/mg
80 mg · $140.00
checked 21 Oct 2026
Alpha Peptides 49% cheaper
- KPV
Alpha Peptides
$2.65/mg
10 mg · $26.51
checked 4 Nov 2026
Catalyst Peptides
$4.50/mg
10 mg · $45.00
checked 21 Oct 2026
Alpha Peptides 41% cheaper
- LL-37
Alpha Peptides
$7.16/mg
5 mg · $35.79
checked 26 Aug 2026
Catalyst Peptides
$11.40/mg
5 mg · $57.00
checked 21 Oct 2026
Alpha Peptides 37% cheaper
- Mazdutide
Alpha Peptides
$6.64/mg
10 mg · $66.43
checked 26 Aug 2026
Catalyst Peptides
$9.75/mg
10 mg · $97.50
checked 21 Oct 2026
Alpha Peptides 32% cheaper
- Melanotan 1
Alpha Peptides
$2.10/mg
10 mg · $21.05
checked 26 Aug 2026
Catalyst Peptides
$4.50/mg
10 mg · $45.00
checked 21 Oct 2026
Alpha Peptides 53% cheaper
- Melanotan 2
Alpha Peptides
$2.21/mg
10 mg · $22.10
checked 4 Nov 2026
Catalyst Peptides
$3.80/mg
10 mg · $38.00
checked 21 Oct 2026
Alpha Peptides 42% cheaper
- MGF
Alpha Peptides
$11.63/mg
2 mg · $23.26
checked 26 Aug 2026
Catalyst Peptides
$25.00/mg
2 mg · $50.00
checked 21 Oct 2026
Alpha Peptides 53% cheaper
- MOTS-C
Alpha Peptides
$2.89/mg
10 mg · $28.93
checked 4 Nov 2026
Catalyst Peptides
$4.20/mg
10 mg · $42.00
checked 21 Oct 2026
Alpha Peptides 31% cheaper
- NAD+
Alpha Peptides
$0.061/mg
500 mg · $30.52
checked 26 Aug 2026
Catalyst Peptides
$0.087/mg
1000 mg · $87.50
checked 21 Oct 2026
Alpha Peptides 30% cheaper
- Oxytocin
Alpha Peptides
$3.96/mg
10 mg · $39.59
checked 26 Aug 2026
Catalyst Peptides
$4.50/mg
10 mg · $45.00
checked 21 Oct 2026
Alpha Peptides 12% cheaper
- Pinealon
Alpha Peptides
$3.32/mg
10 mg · $33.16
checked 26 Aug 2026
Catalyst Peptides
$6.50/mg
10 mg · $65.00
checked 21 Oct 2026
Alpha Peptides 49% cheaper
- PT-141
Alpha Peptides
$2.32/mg
10 mg · $23.17
checked 4 Nov 2026
Catalyst Peptides
$4.00/mg
10 mg · $40.00
checked 21 Oct 2026
Alpha Peptides 42% cheaper
- Retatrutide
Alpha Peptides
$3.27/mg
30 mg · $98.11
checked 4 Nov 2026
Catalyst Peptides
$10.00/mg
30 mg · $300.00
checked 21 Oct 2026
Alpha Peptides 67% cheaper
- Selank
Alpha Peptides
$2.61/mg
10 mg · $26.06
checked 4 Nov 2026
Catalyst Peptides
$4.20/mg
10 mg · $42.00
checked 21 Oct 2026
Alpha Peptides 38% cheaper
- Semaglutide
Alpha Peptides
$6.50/mg
10 mg · $64.99
checked 26 Aug 2026
Catalyst Peptides
$7.13/mg
20 mg · $142.50
checked 21 Oct 2026
Alpha Peptides 9% cheaper
- Semax
Alpha Peptides
$2.19/mg
10 mg · $21.88
checked 4 Nov 2026
Catalyst Peptides
$4.20/mg
10 mg · $42.00
checked 21 Oct 2026
Alpha Peptides 48% cheaper
- Sermorelin
Alpha Peptides
$4.45/mg
10 mg · $44.53
checked 26 Aug 2026
Catalyst Peptides
$8.40/mg
10 mg · $84.00
checked 21 Oct 2026
Alpha Peptides 47% cheaper
- SLU-PP-332
Alpha Peptides
$16.84/mg
5 mg · $84.21
checked 26 Aug 2026
Catalyst Peptides
$12.00/mg
5 mg · $60.00
checked 21 Oct 2026
Catalyst Peptides 29% cheaper
- SNAP-8
Alpha Peptides
$2.21/mg
10 mg · $22.11
checked 26 Aug 2026
Catalyst Peptides
$3.10/mg
10 mg · $31.00
checked 21 Oct 2026
Alpha Peptides 29% cheaper
- SS-31
Alpha Peptides
$3.76/mg
10 mg · $37.58
checked 4 Nov 2026
Catalyst Peptides
$6.30/mg
10 mg · $63.00
checked 21 Oct 2026
Alpha Peptides 40% cheaper
- Survodutide
Alpha Peptides
$7.39/mg
10 mg · $73.89
checked 26 Aug 2026
Catalyst Peptides
$11.00/mg
10 mg · $110.00
checked 21 Oct 2026
Alpha Peptides 33% cheaper
- TB-500
Alpha Peptides
$3.13/mg
10 mg · $31.32
checked 26 Aug 2026
Catalyst Peptides
$6.50/mg
10 mg · $65.00
checked 21 Oct 2026
Alpha Peptides 52% cheaper
- Tesamorelin
Alpha Peptides
$4.54/mg
10 mg · $45.38
checked 1 Nov 2026
Catalyst Peptides
$10.00/mg
10 mg · $100.00
checked 21 Oct 2026
Alpha Peptides 55% cheaper
- Thymalin
Alpha Peptides
$5.05/mg
10 mg · $50.53
checked 26 Aug 2026
Catalyst Peptides
$6.00/mg
10 mg · $60.00
checked 21 Oct 2026
Alpha Peptides 16% cheaper
- Thymosin Alpha-1
Alpha Peptides
$4.14/mg
10 mg · $41.44
checked 26 Aug 2026
Catalyst Peptides
$7.80/mg
10 mg · $78.00
checked 21 Oct 2026
Alpha Peptides 47% cheaper
- Tirzepatide
Alpha Peptides
$1.49/mg
60 mg · $89.24
checked 4 Nov 2026
Catalyst Peptides
$5.40/mg
20 mg · $108.00
checked 21 Oct 2026
Alpha Peptides 72% cheaper
- VIP
Alpha Peptides
$3.79/mg
10 mg · $37.89
checked 26 Aug 2026
Catalyst Peptides
$12.00/mg
10 mg · $120.00
checked 21 Oct 2026
Alpha Peptides 68% cheaper
| Peptide | Alpha Peptides | Catalyst Peptides | Difference per mg |
|---|---|---|---|
| 5-Amino-1MQ | $3.31/mg 10 mg · $33.12 checked 26 Aug 2026 | $1.50/mg 50 mg · $75.00 checked 21 Oct 2026 | Catalyst Peptides 55% cheaper |
| AOD-9604 | $4.58/mg 10 mg · $45.75 checked 26 Aug 2026 | $9.60/mg 10 mg · $96.00 checked 21 Oct 2026 | Alpha Peptides 52% cheaper |
| ARA-290 | $3.60/mg 10 mg · $36.00 checked 26 Aug 2026 | $5.90/mg 10 mg · $59.00 checked 21 Oct 2026 | Alpha Peptides 39% cheaper |
| BPC-157 | $2.73/mg 10 mg · $27.29 checked 4 Nov 2026 | $5.40/mg 10 mg · $54.00 checked 21 Oct 2026 | Alpha Peptides 49% cheaper |
| Cagrilintide | $9.60/mg 10 mg · $95.99 checked 26 Aug 2026 | $12.60/mg 10 mg · $126.00 checked 21 Oct 2026 | Alpha Peptides 24% cheaper |
| CJC-1295 | $6.80/mg 5 mg · $33.99 checked 26 Aug 2026 | $4.50/mg 10 mg · $45.00 checked 21 Oct 2026 | Catalyst Peptides 34% cheaper |
| DSIP | $4.29/mg 5 mg · $21.45 checked 4 Nov 2026 | $5.20/mg 10 mg · $52.00 checked 21 Oct 2026 | Alpha Peptides 18% cheaper |
| Epithalon | $2.63/mg 10 mg · $26.32 checked 4 Nov 2026 | $3.15/mg 10 mg · $31.50 checked 21 Oct 2026 | Alpha Peptides 16% cheaper |
| FOXO4-DRI | $6.26/mg 10 mg · $62.63 checked 26 Aug 2026 | $31.50/mg 10 mg · $315.00 checked 21 Oct 2026 | Alpha Peptides 80% cheaper |
| GHK-Cu | $0.504/mg 50 mg · $25.19 checked 4 Nov 2026 | $0.700/mg 100 mg · $70.00 checked 21 Oct 2026 | Alpha Peptides 28% cheaper |
| GHRP-2 | $2.86/mg 5 mg · $14.32 checked 26 Aug 2026 | $5.00/mg 10 mg · $50.00 checked 21 Oct 2026 | Alpha Peptides 43% cheaper |
| GHRP-6 | $2.86/mg 5 mg · $14.32 checked 26 Aug 2026 | $5.00/mg 10 mg · $50.00 checked 21 Oct 2026 | Alpha Peptides 43% cheaper |
| GLOW | $0.726/mg 70 mg · $50.83 checked 4 Oct 2026 | $1.54/mg 70 mg · $108.00 checked 21 Oct 2026 | Alpha Peptides 53% cheaper |
| Glutathione | $0.025/mg 1500 mg · $36.83 checked 26 Aug 2026 | $0.051/mg 1500 mg · $77.00 checked 21 Oct 2026 | Alpha Peptides 52% cheaper |
| Hexarelin | $5.91/mg 5 mg · $29.53 checked 26 Aug 2026 | $13.00/mg 5 mg · $65.00 checked 21 Oct 2026 | Alpha Peptides 55% cheaper |
| IGF-1 LR3 | $45.47/mg 1 mg · $45.47 checked 26 Aug 2026 | $75.00/mg 1 mg · $75.00 checked 21 Oct 2026 | Alpha Peptides 39% cheaper |
| Ipamorelin | $2.65/mg 10 mg · $26.51 checked 4 Nov 2026 | $5.60/mg 10 mg · $56.00 checked 21 Oct 2026 | Alpha Peptides 53% cheaper |
| Kisspeptin | $2.74/mg 10 mg · $27.37 checked 26 Aug 2026 | $5.25/mg 10 mg · $52.50 checked 21 Oct 2026 | Alpha Peptides 48% cheaper |
| KLOW | $0.885/mg 80 mg · $70.79 checked 4 Oct 2026 | $1.75/mg 80 mg · $140.00 checked 21 Oct 2026 | Alpha Peptides 49% cheaper |
| KPV | $2.65/mg 10 mg · $26.51 checked 4 Nov 2026 | $4.50/mg 10 mg · $45.00 checked 21 Oct 2026 | Alpha Peptides 41% cheaper |
| LL-37 | $7.16/mg 5 mg · $35.79 checked 26 Aug 2026 | $11.40/mg 5 mg · $57.00 checked 21 Oct 2026 | Alpha Peptides 37% cheaper |
| Mazdutide | $6.64/mg 10 mg · $66.43 checked 26 Aug 2026 | $9.75/mg 10 mg · $97.50 checked 21 Oct 2026 | Alpha Peptides 32% cheaper |
| Melanotan 1 | $2.10/mg 10 mg · $21.05 checked 26 Aug 2026 | $4.50/mg 10 mg · $45.00 checked 21 Oct 2026 | Alpha Peptides 53% cheaper |
| Melanotan 2 | $2.21/mg 10 mg · $22.10 checked 4 Nov 2026 | $3.80/mg 10 mg · $38.00 checked 21 Oct 2026 | Alpha Peptides 42% cheaper |
| MGF | $11.63/mg 2 mg · $23.26 checked 26 Aug 2026 | $25.00/mg 2 mg · $50.00 checked 21 Oct 2026 | Alpha Peptides 53% cheaper |
| MOTS-C | $2.89/mg 10 mg · $28.93 checked 4 Nov 2026 | $4.20/mg 10 mg · $42.00 checked 21 Oct 2026 | Alpha Peptides 31% cheaper |
| NAD+ | $0.061/mg 500 mg · $30.52 checked 26 Aug 2026 | $0.087/mg 1000 mg · $87.50 checked 21 Oct 2026 | Alpha Peptides 30% cheaper |
| Oxytocin | $3.96/mg 10 mg · $39.59 checked 26 Aug 2026 | $4.50/mg 10 mg · $45.00 checked 21 Oct 2026 | Alpha Peptides 12% cheaper |
| Pinealon | $3.32/mg 10 mg · $33.16 checked 26 Aug 2026 | $6.50/mg 10 mg · $65.00 checked 21 Oct 2026 | Alpha Peptides 49% cheaper |
| PT-141 | $2.32/mg 10 mg · $23.17 checked 4 Nov 2026 | $4.00/mg 10 mg · $40.00 checked 21 Oct 2026 | Alpha Peptides 42% cheaper |
| Retatrutide | $3.27/mg 30 mg · $98.11 checked 4 Nov 2026 | $10.00/mg 30 mg · $300.00 checked 21 Oct 2026 | Alpha Peptides 67% cheaper |
| Selank | $2.61/mg 10 mg · $26.06 checked 4 Nov 2026 | $4.20/mg 10 mg · $42.00 checked 21 Oct 2026 | Alpha Peptides 38% cheaper |
| Semaglutide | $6.50/mg 10 mg · $64.99 checked 26 Aug 2026 | $7.13/mg 20 mg · $142.50 checked 21 Oct 2026 | Alpha Peptides 9% cheaper |
| Semax | $2.19/mg 10 mg · $21.88 checked 4 Nov 2026 | $4.20/mg 10 mg · $42.00 checked 21 Oct 2026 | Alpha Peptides 48% cheaper |
| Sermorelin | $4.45/mg 10 mg · $44.53 checked 26 Aug 2026 | $8.40/mg 10 mg · $84.00 checked 21 Oct 2026 | Alpha Peptides 47% cheaper |
| SLU-PP-332 | $16.84/mg 5 mg · $84.21 checked 26 Aug 2026 | $12.00/mg 5 mg · $60.00 checked 21 Oct 2026 | Catalyst Peptides 29% cheaper |
| SNAP-8 | $2.21/mg 10 mg · $22.11 checked 26 Aug 2026 | $3.10/mg 10 mg · $31.00 checked 21 Oct 2026 | Alpha Peptides 29% cheaper |
| SS-31 | $3.76/mg 10 mg · $37.58 checked 4 Nov 2026 | $6.30/mg 10 mg · $63.00 checked 21 Oct 2026 | Alpha Peptides 40% cheaper |
| Survodutide | $7.39/mg 10 mg · $73.89 checked 26 Aug 2026 | $11.00/mg 10 mg · $110.00 checked 21 Oct 2026 | Alpha Peptides 33% cheaper |
| TB-500 | $3.13/mg 10 mg · $31.32 checked 26 Aug 2026 | $6.50/mg 10 mg · $65.00 checked 21 Oct 2026 | Alpha Peptides 52% cheaper |
| Tesamorelin | $4.54/mg 10 mg · $45.38 checked 1 Nov 2026 | $10.00/mg 10 mg · $100.00 checked 21 Oct 2026 | Alpha Peptides 55% cheaper |
| Thymalin | $5.05/mg 10 mg · $50.53 checked 26 Aug 2026 | $6.00/mg 10 mg · $60.00 checked 21 Oct 2026 | Alpha Peptides 16% cheaper |
| Thymosin Alpha-1 | $4.14/mg 10 mg · $41.44 checked 26 Aug 2026 | $7.80/mg 10 mg · $78.00 checked 21 Oct 2026 | Alpha Peptides 47% cheaper |
| Tirzepatide | $1.49/mg 60 mg · $89.24 checked 4 Nov 2026 | $5.40/mg 20 mg · $108.00 checked 21 Oct 2026 | Alpha Peptides 72% cheaper |
| VIP | $3.79/mg 10 mg · $37.89 checked 26 Aug 2026 | $12.00/mg 10 mg · $120.00 checked 21 Oct 2026 | Alpha Peptides 68% cheaper |
Only at Alpha Peptides: 8 peptides in the same market
Alpha Peptides compared with
- Lab Ratz Research47 shared
- Peptides direct to you47 shared
- NHOV46 shared
- Vipris Biotechnology44 shared
- Huaian Hanyou Peptide43 shared
- Research1peptides43 shared
- Bridge Research42 shared
- Peptides GG42 shared
- Grey Axis Research41 shared
- LabFirst Peptides41 shared
- Prime Longevity Peptides40 shared
- VPeptide40 shared
- Peptide Science Now39 shared
- Priority Peptides39 shared
- Pure Lab Peptides39 shared
- Amino Usa38 shared
- Nexus Bio Life38 shared
- Biotech Peptides37 shared
- Eppixlabs37 shared
- Eros Peptides37 shared
- Luxe Peptides37 shared
- SQS Research37 shared
- Raw Amino36 shared
- Cenexa Labs35 shared
- Core Peptides35 shared
- Peptide Science Store35 shared
- TrueLab Peptides35 shared
- Grey Matters Research34 shared
- Nordsci Peptides34 shared
- OP Labs32 shared
Catalyst Peptides compared with
- Lab Ratz Research51 shared
- NHOV49 shared
- Peptides direct to you49 shared
- Peptides GG48 shared
- Huaian Hanyou Peptide47 shared
- Research1peptides47 shared
- LabFirst Peptides46 shared
- Vipris Biotechnology45 shared
- Nexus Bio Life44 shared
- VPeptide43 shared
- Bridge Research42 shared
- Luxe Peptides42 shared
- Pure Lab Peptides42 shared
- Eppixlabs41 shared
- Grey Axis Research41 shared
- Raw Amino41 shared
- Biotech Peptides40 shared
- Core Peptides40 shared
- Peptide Science Now40 shared
- Prime Longevity Peptides40 shared
- Amino Usa39 shared
- Cenexa Labs39 shared
- Priority Peptides39 shared
- Eros Peptides38 shared
- Grey Matters Research38 shared
- OP Labs38 shared
- Peptide Science Store37 shared
- SQS Research37 shared
- TrueLab Peptides37 shared
- Nordsci Peptides36 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.