--- title: "9-Me-BC vs Semax: Side-by-Side Comparison (2026)" url: https://www.bodyhackguide.co/compare/9-mbc-vs-semax description: "Compare 9-Me-BC vs Semax side by side. We earn a commission on some vendor links. Mechanism, half-life, dose range, side effects and prices. Semax from $32.90." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) # 9-Me-BC (9-Methyl-β-carboline) vs Semax Side-by-side comparison of 9-Me-BC (9-Methyl-β-carboline) and Semax: mechanism, half-life, dose range, safety profile, and vendor pricing. 9-Me-BC (9-Methyl-β-carboline) from $54.99 Semax from $32.90 ## Price snapshot ### 9-Me-BC (9-Methyl-β-carboline) Current low $54.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ### Semax Current low $32.90 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet ## 9-Me-BC (9-Methyl-β-carboline) 9-Methyl--carboline (9-Me-BC) is a synthetic -carboline alkaloid that has drawn nootropic-community interest for a preclinical property that is genuinely unusual among -carbolines: in rodent and cell-culture studies it… **Lowest listed price:** $54.99 across 1 listing Full 9-Me-BC (9-Methyl-β-carboline) profile (https://www.bodyhackguide.co/compound/9-mbc) ## Semax Semax is a synthetic heptapeptide (Met-Glu-His-Phe-Pro-Gly-Pro, MEHFPGP, 813 Da molecular weight) developed at the Institute of Molecular Genetics of the Russian Academy of Sciences in the 1980s. The compound is derived… **Lowest listed price:** $32.90 across 5 listings Full Semax profile (https://www.bodyhackguide.co/compound/semax) ## Side-by-side comparison | Attribute | 9-Me-BC (9-Methyl-β-carboline) | Semax | | --- | --- | --- | | Category | Nootropics | Nootropics | | Research Stage | Preclinical (rodent and cell-culture only) | Approved (Russia, since mid-1990s for stroke and cognitive disorders) | | Mechanism of Action | 9-Me-BC is a synthetic 9-methylated -carboline (pyridoindole) alkaloid. Unlike most -carbolines, which tend to be neurotoxic, 9-Me-BC shows a distinctive dopaminergic-supportive profile in preclinical models, acting through several linked mechanisms:… | Primary Mechanism: Multi-Pathway Neurotrophic Activation Semax produces its effects through coordinated activation of multiple neurotrophic, neurotransmitter, and neuroprotective pathways. Unlike conventional nootropics that target a single system (modafinil… | | Half-Life | Not characterized in humans (no pharmacokinetic data). | ~2-3 minutes plasma half-life (functional neurological effects persist 12-24 hours due to BDNF/NGF gene expression changes) | | Typical Dose Range | Community/anecdotal only: ~5-25 mg per day, oral. No validated or approved human dose exists. | 100-900 mcg intranasal daily (0.1% solution: 2-3 drops per nostril 2-3x daily); 1% solution used for acute stroke in Russian clinical protocols | | Dosing Frequency | Typically once daily (morning) in community reports; frequently cycled rather than taken continuously. | Intranasal 1–3 times daily | | Administration | — | Intranasal | | Side Effects | No human safety data exist for 9-Me-BC, so there is no verified side-effect profile - the following are theoretical or anecdotal only. Community users most often report stimulation-type effects: insomnia if dosed late, anxiety or overstimulation, and headache.… | Overall Safety Profile Semax has an excellent safety profile across 20+ years of Russian clinical use. In acute stroke trials, cognitive studies, and pediatric applications, Semax has demonstrated consistent tolerability with minimal adverse event burden. This… | | Molecular Weight | 182.22 g/mol (C12H10N2) | 813.9 Da | | Common Vial Sizes | — | 5mg, 10mg | ## Price tracking Tracking 9-Me-BC (9-Methyl-β-carboline) prices since July 1, 2026. Trend chart unlocks once we have price snapshots from more than one day. ## Price History 5 data points - OF - Half Nattys - Ion Peptide - BHG Labs ### 9-Me-BC (9-Methyl-β-carboline): potential benefits - Preclinical dopaminergic support: in rodent and cell-culture studies 9-Me-BC increased tyrosine hydroxylase expression and the number of differentiated dopamine neurons [PMID:17913302, PMID:20374418] - Cognitive/learning signal in rodents: 10 days of dosing improved spatial learning and raised hippocampal dopamine with dendritic and synaptic growth in rats [PMID:22380576] - Neuroprotective/neurorestorative in animal Parkinson's models: restored dopamine and substantia-nigra neuron counts after MPP+ injury and boosted mitochondrial complex I activity [PMID:20360614] - Anti-inflammatory and neurotrophic actions in preclinical models: reduced microglial activation and induced neurotrophic factors such as BDNF, CDNF and artemin [PMID:20374418, PMID:32285253] - Community-reported (anecdotal, unverified) motivation, drive, focus and mood lift - not demonstrated in any human study ### Semax: potential benefits - Rapid BDNF/TrkB upregulation in the hippocampus, supporting synaptic plasticity and learning (PMID: 16996037) - Neuroprotective, immunomodulatory gene-expression changes in focal cerebral ischemia (middle cerebral artery occlusion) models (PMID: 28255762) - Cognitive enhancement including improved attention, working memory, and processing speed - Dopaminergic modulation that may support motivation and executive function (preclinical data) - Stroke recovery facilitation - accelerated functional recovery and improved Barthel Index in ischemic stroke patients; approved in Russia for ischemic stroke (PMID: 29798983) - Anxiolytic and anti-asthenic effects reported in Russian clinical use, attributed to neurotrophic and monoaminergic modulation - Non-addictive cognitive support without tolerance development or withdrawal at standard doses ## Frequently asked ### What's the difference between 9-Me-BC (9-Methyl-β-carboline) and Semax? 9-Me-BC (9-Methyl-β-carboline) is a nootropics that 9-me-bc is a synthetic 9-methylated -carboline (pyridoindole) alkaloid. unlike most -carbolines, which tend to be neurotoxic, 9-me-bc shows a distinctive dopaminergic-supportive…. Semax is a nootropics that primary mechanism: multi-pathway neurotrophic activation semax produces its effects through coordinated activation of multiple neurotrophic, neurotransmitter, and neuroprotective…. The two differ in mechanism, half-life (Not characterized in humans (no pharmacokinetic data). vs ~2-3 minutes plasma half-life (functional neurological effects persist 12-24 hours due to BDNF/NGF gene expression changes)), and typical dose range. ### Which has the longer half-life, 9-Me-BC (9-Methyl-β-carboline) or Semax? 9-Me-BC (9-Methyl-β-carboline) has a half-life of Not characterized in humans (no pharmacokinetic data).. Semax has a half-life of ~2-3 minutes plasma half-life (functional neurological effects persist 12-24 hours due to BDNF/NGF gene expression changes). Longer half-lives generally mean less frequent dosing but slower on/off kinetics. ### Which is cheaper, 9-Me-BC (9-Methyl-β-carboline) or Semax? Lowest listed price on BodyHackGuide: 9-Me-BC (9-Methyl-β-carboline) from $54.99, Semax from $32.90. Prices are pulled from the vendor listings tracked on BHG and change frequently. See the compare tables on each compound page for the current set of offers. ### Can you stack 9-Me-BC (9-Methyl-β-carboline) and Semax? Stacking depends on mechanism overlap, safety profile, and goals. 9-Me-BC (9-Methyl-β-carboline) and Semax should only be stacked after reviewing each compound's individual protocol page, side effect profile, and any published interaction data. Use the BodyHackGuide stack builder for a structured review before combining research compounds. ## See current vendor prices Listings from the vendors we track. Prices change often, so check the vendor before you buy. 9-Me-BC (9-Methyl-β-carboline) prices: https://www.bodyhackguide.co/compound/9-mbc?tab=prices Semax prices: https://www.bodyhackguide.co/compound/semax?tab=prices Compare all compounds: https://www.bodyhackguide.co/compare ### Before you buy 9-Me-BC (9-Methyl-β-carboline) or Semax Check the vendor trust score. Every supplier we track is rated 0-100 on COA verification, payment transparency, shipping, reviews, and listings: one published, reproducible methodology, applied to every vendor. View Vendor Scorecard (https://www.bodyhackguide.co/vendors/scorecard) ## Related comparisons Selank vs Semax: https://www.bodyhackguide.co/compare/selank-vs-semax **Research use only.** BodyHackGuide is a research and price-comparison reference. The compounds discussed on this page are not approved by the FDA for human consumption and are sold strictly for laboratory research. 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