Semax: Research Profile, Dosages & Supplier Prices
Semax is a neuropeptide research compound with a molecular weight of 813.9 g/mol and a research half-life of short plasma half-life; cns effects studied via intranasal administration. Semax is a synthetic heptapeptide analog of the ACTH(4-7) fragment, developed in Russia and approved there as a pharmaceutical for certain neurological indications. It has one of the deepest research literatures of any nootropic peptide, including human clinical studies in stroke recovery and cognitive research.
Research Use Only (RUO). Not for human or veterinary use. Not medical advice.
| Sequence | Met-Glu-His-Phe-Pro-Gly-Pro |
| Formula | C37H51N9O10S |
| Mol. weight | 813.9 g/mol |
| Half-life | Short plasma half-life; CNS effects studied via intranasal administration |
| Forms sold | Lyophilized vial, nasal spray |
What is Semax?
Published research has investigated Semax for BDNF/NGF expression modulation, attention and memory models, and neuroprotection in ischemia models.
Semax is widely counterfeited in the nootropic market despite being cheap to synthesize - verify mass spec identity (813.9 g/mol) on batch COAs.
Mechanism of Action (Research Context)
Studied for modulation of BDNF and NGF expression, dopaminergic and serotonergic signaling, and neuroprotective pathways in animal and human research.
Research Areas
Semax Dosages in Research
Published research used low microgram-to-milligram intranasal dosing. Laboratory research use only.
Dosage information is a summary of published laboratory research and is provided for informational purposes only. These compounds are not for human use.
Storage & Handling
Lyophilized: -20C. Reconstituted: 2-8C, use within 30 days.
Semax Supplier Price Comparison
| Supplier | Product | Price | Score |
|---|---|---|---|
| Arc Peptides | Semax 5mg 5mg | — | ★ 1.6 |
| Peptide Manufacturer & Supplier | SEMAX PEPTIDE 10MG 10mg | — | ★ 1.8 |
| Advance Peptides Lab | Semax (10mg) 10mg | — | ★ 1.6 |
| Leading Peptide Research Company | Semax 10mg 10mg | — | ★ 2.2 |
| Peptides, Steroid Powders & Biochemical Raw Materials | Semax 5mg | Neuroprotective & Cognitive Research Peptide 5mg | — | ★ 1.8 |
| Home | Semax | — | ★ 2.8 |
| Home | Semax 10mg COA 10mg | — | ★ 2.0 |
| AION | Semax 10mg 10mg | $1.00 | ★ 1.7 |
| One moment, please... | Semax | $5.00 | ★ 1.6 |
| Research Peptides UK | Semax | $9.95 | ★ 1.6 |
| Research | Semax | $12.00 | ★ 1.6 |
| Bangkok Peptide Center | Semax 10mg 10mg | $12.00 | ★ 1.6 |
| BuyDeus | SEMAX (Semax Heptapeptide) | $15.00 | ★ 3.2 |
| Home | Semax 10 mg 10mg | $17.50 | ★ 2.7 |
| Cielo – Lab | Semax | $18.00 | ★ 1.5 |
| Comprar esteroides en españa | SEMAX | Deus Medical | $19.90 | ★ 2.5 |
| Steroids UK | Deus Medical SEMAX (Semax Heptapeptide) | $19.90 | ★ 2.4 |
| Buy Peptides for Laboratory Research | Semax 5mg 5mg | $19.99 | ★ 2.8 |
| Research Peptides & Compounds for Labs | Semax — Single Vial | $21.99 | ★ 1.9 |
| One moment, please... | Semax | $22.00 | ★ 1.6 |
| Pure Peptides UK | Semax 10mg 10mg | $22.99 | ★ 2.7 |
| Home | Semax (5mg) 5mg | $23.24 | ★ 2.3 |
| AminoPoly | Semax | $23.99 | ★ 1.6 |
| Buy Peptides for Laboratory Research | Semax 10mg 10mg | $24.99 | ★ 2.8 |
| MyPurePeptide | Semax 10mg 10mg | $25.00 | ★ 1.5 |
| Peptides UK Premium Research Peptides Apollo Labs | SEMAX 10mg 10mg | $25.00 | ★ 2.0 |
| Research | Semax 10mg 10mg | $25.00 | ★ 1.7 |
| Research Use Only Disclaimer | Semax 5mg 5mg | $25.99 | ★ 1.9 |
| Buy Peptides for Scientific Research | Semax 5mg 5mg | $26.00 | ★ 2.2 |
| Home | Semax | $26.00 | ★ 1.5 |
| Buy Research Peptides UK | SEMAX 10mg 10mg | $26.18 | ★ 1.6 |
| BAYOUPEP USA | SEMAX | $27.90 | ★ 1.8 |
| Research Peptides UK | Adonis Semax – Research Peptide (RUO) | $27.99 | ★ 2.0 |
| Accurate Peptide Supply – Same Sequence. Same Result. Every Time. | Semax 5mg 5mg | $28.98 | ★ 1.4 |
| Home | Semax 10mg 10mg | $29.00 | ★ 1.9 |
| auxorpeptides.com | Semax 5 mg 5 mg | $29.00 | ★ 1.6 |
| AminoX Peptides – For Research Purposes | Semax 10mg 10mg | $29.00 | ★ 1.8 |
| Affordable Peptides Online | Semax | $29.00 | ★ 1.7 |
| auxorpeptides.com | Semax 5 mg 5 mg | $29.00 | ★ 1.6 |
| Buy Research Peptides UK | Semax – 10mg | Research-Grade Peptide 10mg | $29.99 | ★ 1.6 |
| Amino Club | Semax Research Peptide – 10MG 10MG | $29.99 | ★ 1.6 |
| Buy Peptides Online USA | Semax Research Peptide – 10MG 10MG | $29.99 | ★ 1.6 |
| Home | XA5 Semax 5mg * 10 vials 5mg | $30.00 | ★ 2.3 |
| Caliber Compounds | Semax 5mg 5mg | $30.00 | ★ 1.5 |
| Research Peptides & Laboratory Supplies UK | Semax 10mg 10mg | $30.00 | ★ 1.9 |
| Home | Semax | $30.00 | ★ 1.6 |
| Home | Buy Semax 30mg Online 30mg | $30.00 | ★ 2.3 |
| Natty Lab Co · Research Materials, Done Right | SEMAX 10MG 10mg | $30.00 | ★ 1.9 |
| Peptides UK Premium Research Peptides Apollo Labs | SEMAX NASAL | $30.00 | ★ 2.0 |
| Research Access | Semax 10MG 10mg | $30.00 | ★ 1.9 |