Amino Science
10 mg vial
- Vendor score
- 89/100
- Effective vial price
- $45.99
- Effective price per mg
- $4.60
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Semax is a synthetic peptide studied in nervous-system and cognitive research. Much of the published record is experimental or comes from limited regional clinical use.
Also known as semax
Historical market context
Historical market low and median per mg across recorded offers. These market summaries are separate from our exact-product comparisons.
History updated Sep 21, 2026. Vendor coverage, package sizes, product forms and promotions can vary over time. Use exact-product comparisons for current listed prices; historical market prices do not establish vendor trust.
| Date | Low /mg | Median /mg | Vendors | Offers |
|---|---|---|---|---|
| $0.79 | $4.00 | 86 | 125 | |
| $0.79 | $4.00 | 86 | 125 | |
| $0.88 | $4.03 | 84 | 120 | |
| $0.88 | $4.03 | 84 | 120 | |
| $0.88 | $4.03 | 84 | 120 | |
| $0.88 | $4.05 | 83 | 122 | |
| $0.88 | $4.19 | 83 | 112 | |
| $0.88 | $4.23 | 83 | 114 | |
| $0.88 | $4.23 | 83 | 114 | |
| $0.88 | $4.39 | 83 | 114 | |
| $0.88 | $4.39 | 83 | 114 | |
| $0.88 | $4.39 | 83 | 116 | |
| $0.88 | $4.39 | 83 | 116 | |
| $0.88 | $4.39 | 83 | 116 | |
| $0.88 | $4.41 | 82 | 113 | |
| $0.88 | $4.41 | 82 | 113 | |
| $0.88 | $4.40 | 83 | 114 | |
| $0.88 | $4.43 | 83 | 114 | |
| $0.88 | $4.43 | 83 | 114 | |
| $0.88 | $4.40 | 82 | 112 | |
| $0.88 | $4.41 | 82 | 111 | |
| $0.88 | $4.41 | 82 | 111 | |
| $0.88 | $4.40 | 82 | 110 | |
| $0.88 | $4.39 | 80 | 108 | |
| $0.88 | $4.39 | 80 | 108 | |
| $0.88 | $4.39 | 80 | 108 | |
| $2.02 | $4.41 | 79 | 107 | |
| $2.02 | $4.45 | 79 | 107 | |
| $2.02 | $4.45 | 79 | 107 | |
| $2.02 | $4.45 | 79 | 107 | |
| $2.02 | $4.47 | 80 | 108 | |
| $2.02 | $4.47 | 78 | 106 | |
| $2.02 | $4.40 | 75 | 107 | |
| $1.60 | $4.31 | 75 | 108 | |
| $1.60 | $4.31 | 75 | 108 | |
| $1.60 | $4.39 | 75 | 108 | |
| $1.60 | $4.39 | 75 | 108 | |
| $1.60 | $4.40 | 75 | 108 | |
| $1.60 | $4.43 | 75 | 108 | |
| $1.60 | $4.43 | 75 | 108 | |
| $1.60 | $4.45 | 74 | 107 | |
| $1.60 | $4.41 | 72 | 105 | |
| $1.60 | $4.45 | 70 | 103 | |
| $1.60 | $4.40 | 68 | 99 | |
| $1.60 | $4.32 | 66 | 98 | |
| $2.02 | $4.25 | 61 | 93 | |
| $2.02 | $4.25 | 60 | 92 | |
| $2.02 | $4.25 | 58 | 89 | |
| $2.02 | $4.25 | 57 | 88 | |
| $1.60 | $4.00 | 52 | 82 | |
| $2.02 | $4.00 | 50 | 80 | |
| $2.02 | $4.00 | 48 | 78 | |
| $2.02 | $4.00 | 46 | 74 | |
| $2.02 | $4.00 | 45 | 71 | |
| $2.02 | $4.00 | 44 | 69 | |
| $2.02 | $4.00 | 44 | 69 | |
| $2.02 | $4.00 | 43 | 67 | |
| $1.89 | $4.00 | 42 | 62 | |
| $2.00 | $4.00 | 40 | 60 | |
| $2.00 | $4.00 | 40 | 60 | |
| $2.00 | $4.00 | 40 | 60 | |
| $2.00 | $4.00 | 40 | 60 | |
| $2.00 | $4.00 | 40 | 60 | |
| $1.89 | $3.99 | 40 | 60 | |
| $1.89 | $4.00 | 40 | 61 | |
| $1.89 | $3.98 | 39 | 61 | |
| $1.89 | $3.99 | 37 | 60 | |
| $1.03 | $3.99 | 35 | 56 | |
| $1.03 | $3.60 | 34 | 55 | |
| $1.03 | $3.60 | 34 | 55 | |
| $1.03 | $3.76 | 34 | 52 | |
| $0.36 | $3.60 | 35 | 59 | |
| $0.36 | $3.78 | 35 | 58 | |
| $0.36 | $3.60 | 34 | 57 | |
| $0.36 | $3.60 | 34 | 57 | |
| $0.36 | $3.64 | 34 | 58 | |
| $0.36 | $3.64 | 34 | 58 | |
| $0.36 | $3.64 | 34 | 58 | |
| $0.36 | $3.69 | 33 | 57 | |
| $0.36 | $3.92 | 31 | 54 | |
| $0.36 | $3.92 | 31 | 54 | |
| $0.36 | $3.96 | 31 | 54 | |
| $0.36 | $3.96 | 31 | 54 | |
| $0.36 | $3.96 | 31 | 54 | |
| $0.36 | $3.97 | 31 | 54 | |
| $0.36 | $3.97 | 31 | 54 | |
| $0.36 | $3.97 | 31 | 54 | |
| $0.36 | $3.98 | 26 | 47 | |
| $1.15 | $4.00 | 19 | 36 | |
| $1.15 | $4.00 | 21 | 39 | |
| $1.15 | $4.00 | 20 | 37 | |
| $1.15 | $4.00 | 21 | 39 | |
| $1.15 | $4.00 | 20 | 37 | |
| $1.15 | $4.10 | 19 | 37 | |
| $1.15 | $4.00 | 20 | 37 | |
| $1.15 | $4.00 | 20 | 37 | |
| $1.10 | $4.00 | 20 | 36 | |
| $1.10 | $3.96 | 21 | 37 | |
| $1.10 | $3.78 | 20 | 36 | |
| $1.15 | $3.60 | 15 | 31 | |
| $1.15 | $3.60 | 15 | 31 | |
| $1.15 | $3.78 | 16 | 32 | |
| $1.15 | $3.78 | 16 | 32 | |
| $1.15 | $3.78 | 16 | 32 | |
| $1.15 | $3.50 | 18 | 38 | |
| $1.15 | $3.36 | 16 | 32 | |
| $1.15 | $3.10 | 8 | 20 | |
| $3.96 | $3.96 | 1 | 1 |
Research shortlist · Sep 12, 2026
These research selections use the same basis: 10 mg vial. The selections remain from Sep 12, 2026; each price below comes from its dated market observation.
10 mg vial
10 mg vial
10 mg vial
What it is
Semax is a synthetic peptide studied in nervous-system and cognitive research. Much of the published record is experimental or comes from limited regional clinical use.
This label describes the available research record, not whether the compound is safe or effective for an individual.
Research context
Indexed work includes neurobiological and functional-connectivity questions, sometimes alongside Selank. The search did not find a clearly matched U.S. registered study under the exact name, and the evidence should not be read as proof of a cognitive or neurological benefit.
Search indexed research for this compound ↗Market context
Semax is commonly sold or discussed for focus, memory, mood, and other cognitive goals. That describes market demand, not proof that the compound is safe or effective.
Market demand and online discussion do not establish product quality, safety, or effectiveness.Same format. Same amount.
7 of 7 formats had a qualifying research shortlist on Sep 12, 2026. Vendor counts below reflect the available price observations.
Vendor directory
Grades describe the vendor record overall. They are not a test result for every product.
| Vendor | Grade | Compared offers | In stock when checked | Lowest effective package | Profile |
|---|---|---|---|---|---|
| Amino ScienceVendor grade | Grade A- | 2 | 2 | $45.9910 mg vial · compare →Observed Sep 21, 2026 | View → |
| EZ PeptidesVendor grade | Grade A- | 1 | 1 | $39.60Automatic buy x get y free · listed $4410 mg vial · compare →Observed Sep 21, 2026 | View → |
| Nura PeptideVendor grade | Grade A- | Not available | Not available | Not availableNo market observation | View → |
| Peptide PlugsVendor grade | Grade A- | 1 | 1 | $24Automatic buy x get y free · listed $4010 mg vial · compare →Observed Sep 21, 2026 | View → |
| Polaris PeptidesVendor grade | Grade A- | 1 | 1 | $4010 mg vial · compare →Observed Sep 21, 2026 | View → |
| Ascension PeptidesVendor grade | Grade A- | 1 | 1 | $45Automatic buy x get y free · listed $5010 mg vial · compare →Observed Sep 21, 2026 | View → |
| Forge Performance CoVendor grade | Grade A- | 1 | 1 | $36Automatic quantity fixed amount off · listed $4010 mg vial · compare →Observed Sep 21, 2026 | View → |
| Evolve PeptidesVendor grade | Grade A- | 2 | 2 | $255 mg vial · compare →Observed Sep 21, 2026 | View → |
| GenPeptideVendor grade | Grade A- | 1 | 1 | $29.75Automatic buy x get y free · listed $3510 mg vial · compare →Observed Sep 21, 2026 | View → |
| Orbitrex PeptidesVendor grade | Grade A- | 2 | 1 | $29.9910 mg vial · compare →Observed Sep 21, 2026 | View → |
| Puratek PeptidesVendor grade | Grade A- | 1 | 1 | $28.01Automatic quantity percent off · listed $32.9510 mg vial · compare →Observed Sep 21, 2026 | View → |
| Southern AminosVendor grade | Grade A- | 1 | 1 | $3310 mg vial · compare →Observed Sep 21, 2026 | View → |
| Bulk Peptide SupplyVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Rocky Mountain CompoundsVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Ameano PeptidesVendor grade | Grade B+ | 1 | 1 | $4410 mg vial · compare →Observed Sep 21, 2026 | View → |
| Blue Ridge PeptidesVendor grade | Grade B+ | 1 | 1 | $4010 mg vial · compare →Observed Sep 21, 2026 | View → |
| Glacier AminosVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Panda PeptidesVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Peptide PartnersVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Alpha PepsVendor grade | Grade B+ | 1 | 1 | $3510 mg vial · compare →Observed Sep 21, 2026 | View → |
| Alpha Pro PeptidesVendor grade | Grade B+ | 1 | 1 | $15.75Automatic buy x get y free · listed $34.9910 mg vial · compare →Observed Sep 21, 2026 | View → |
| Peptide CraftersVendor grade | Grade B+ | 1 | 1 | $3510 mg vial · compare →Observed Sep 21, 2026 | View → |
| Prime Lab PeptidesVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| MedVinci ResearchVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Oasis PeptidesVendor grade | Grade B+ | 1 | 1 | $38.25Automatic quantity percent off · listed $4510 mg vial · compare →Observed Sep 21, 2026 | View → |
| Oros ResearchVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Silverstone LabsVendor grade | Grade B+ | 1 | 1 | $3410 mg vial · compare →Observed Sep 21, 2026 | View → |
| Core PeptidesVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Licensed PeptidesVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| RIVN PeptidesVendor grade | Grade B+ | 1 | 1 | $22.50Automatic buy x get y free · listed $44.9910 mg vial · compare →Observed Sep 21, 2026 | View → |
| SaiyanMedVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| Simple PeptideVendor grade | Grade B | 1 | 0 | $5510 mg vial · compare →Observed Sep 21, 2026Out of stock when observed | View → |
| TCore BiotechVendor grade | Grade B | 1 | 1 | $31.4910 mg vial · compare →Observed Sep 21, 2026 | View → |
| Biolongevity LabsVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Coffee and PeppersVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Ion PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Paramount PeptidesVendor grade | Grade B | 1 | 1 | $6830 mg vial · compare →Observed Sep 21, 2026 | View → |
| Rescue ResearchVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| RUOVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| NuLife PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Chameleon PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Eternal PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Premier Bio LabsVendor grade | Grade A- | 1 | 1 | $33010 mg vial · pack of 10 · compare →Observed Sep 21, 2026 | View → |
| Nationwide PeptidesVendor grade | Grade B+ | Not available | Not available | Not availableNo market observation | View → |
| VAYNVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Prime PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| NextGen PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Blank PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Royal PeptidesVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Vital Core ResearchVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| Mile High CompoundsVendor grade | Grade B | Not available | Not available | Not availableNo market observation | View → |
| NextechLabsVendor grade | Grade C | 2 | 2 | $29.25Automatic fixed amount off · listed $4510 mg vial · compare →Observed Sep 21, 2026 | View → |
| PeptidologyVendor grade | Grade C | Not available | Not available | Not availableNo market observation | View → |
| Oath ResearchVendor grade | Grade C | Not available | Not available | Not availableNo market observation | View → |
| Swiss ChemsVendor grade | Grade C | Not available | Not available | Not availableNo market observation | View → |
| AIO PeptidesNot enough information to grade | Not enough information to grade | 1 | 1 | $32.64Automatic percent off · listed $40.8010 mg vial · compare →Observed Sep 21, 2026 | View → |
| American Peptide ResearchNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Atomik LabzNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Longevity PeptidesNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Northline LabsNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Nova Life PeptidesNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Nuscience PeptidesNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Pharma Grade PeptidesNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Planet PeptideNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| Skye PeptidesNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
| TydesNot enough information to grade | Not enough information to grade | Not available | Not available | Not availableNo market observation | View → |
Sources and review
Last editorial review: Aug 30, 2026. Sources support the compound guide only and do not affect vendor grades.