Dihexa: Research, Dosing, and Where to Buy in 2026
A research-first profile for Dihexa (DHEXA, N-hexanoic-Tyr-Ile-(6)-amino hexanoic amide, PNB-0408), aggregating mechanism notes, transcript dosing mentions, vendor recommendations, and PubMed-indexed literature without presenting medical guidance.
Oral angiotensin IV analog peptide, originally developed for Alzheimer's research. As of July 2026, The Peptide Wiki aggregates 15 PubMed-cited papers, 18 attributed expert mentions, and 6 transcript dosing protocols for Dihexa, each linked to its source.
- Also indexed as DHEXA, N-hexanoic-Tyr-Ile-(6)-amino hexanoic amide, PNB-0408.
- Oral angiotensin IV analog peptide, originally developed for Alzheimer's research. Acts as a strong promoter of synaptogenesis (new synaptic connections).
- Mechanism notes include Hepatocyte growth factor (HGF) / c-Met receptor agonist. Promotes new synapse formation via HGF pathway. ~7 orders of magnitude more potent than BDNF in some assays.
- 6 aggregated dosing-protocol mentions from source transcripts.
- 15 PubMed-indexed citations listed in the research table below.
- 0 vendor recommendations captured from named experts.
- Evidence level in this entry is marked as research.
What is Dihexa?
Oral angiotensin IV analog peptide, originally developed for Alzheimer's research. Acts as a strong promoter of synaptogenesis (new synaptic connections).
Experts on background and overview · 2 cited mentions
"Dihexa, noopept, Ritalin, modafinil, Adderall, bromantane, dextroamphetamine, semax, selank, cerebrolysin. I would look into all of those options before you commit to a selective serotonin reuptake inhibitor."
"But bromantane and Dihexa and noopept together oh my. Verbal fluency galore."
How does Dihexa work?
Hepatocyte growth factor (HGF) / c-Met receptor agonist. Promotes new synapse formation via HGF pathway. ~7 orders of magnitude more potent than BDNF in some assays.
Mechanism note
These mechanisms are presented as research observations and hypotheses from the indexed data, not as confirmation of clinical effect in humans.
Experts on mechanism · 2 cited mentions
"We do have some good data on the prodrug which is about phase two trials right now. So it's working its way up to potentially getting approved and being used in practice. Dhexa is hitting all of the boxes that that drug is hitting in essence."
"Diehexa, theoretically, is going to strengthen those connections and regrow those connections cuz there's a big like growth signaling portion to diehexa. It's actually growing new tissue, but in your brain."
What is Dihexa researched for?
Improves long-term memory, neurogenesis. Tanner's #1 recommendation for anti-Alzheimer / anti-dementia use in bodybuilders worried about brain damage from PEDs.
Experts on uses and effects · 6 cited mentions
"My go-to right now has been Dihexa. Big Paul has just been on it for a few months now, has already noticed really considerable improvements in his memory. This is something that I'm trying to normalize in the space. Just as all guys use statins for their cholesterol, I want to have something for the brain. And I..."
"how does it compare to other dopamine energy ks like you dhexa nopeps and some of these neutropics all have a little bit of an overlapping effect"
"Tanner reported that his current go-to has been Dihexa, stating that Big Paul has been using it for a few months and has reportedly noticed considerable improvements in memory. Tanner said he is trying to normalize discussion of the compound in the space."
Show 3 more cited mentions on uses and effects →
"I feel that broth and dioxin are a little bit more stronger in your central nervous system and your neurological drive than medafanyl."
"I like new peptin dhexa way more than alpha GPC or broantine, but that's that's basically a crack."
"A couple things that it is being actually studied for. Alzheimer's, TBI, right?"
Dihexa Dosing Protocols
The entries below are transcript-derived dosing mentions. They are preserved for research context and are not medical advice.
| Speaker | Source | Timestamp | Protocol | Evidence |
|---|---|---|---|---|
| Vigorous Steve | Best Injectable Oral Steroids, Injectable Pre-Workouts SubQ Vs IM,... | 00:15:05 | Two or three times per week, taken in the morning due to long-lasting effects; cycle through with bromantane and noopept rather than daily use | anecdotal |
| Tanner Tattered | Tanner Tattered: Peptides & Drugs for Long-term Bodybuilding Success | 00:43:10 | Oral, daily, dosing experimental - Tanner's friend 'Big Paul' has been on it for a few months with considerable memory improvements | anecdotal |
| Will (JD Denham co-host) | Peptide of the Week: Pinealon & Dihexa - Neuroprotection, Memory &... | 00:25:18 | Will is personally taking 10 mg/day on the pulse schedule (notes he's 6'4", 250 lb so takes the high end of 5 to 10). | anecdotal |
| Vigorous Steve | Best PED Use (Competitive vs. Lifestyle) & All Things to Avoid Death... | 00:54:27 | Steve reported (anecdotal) taking a morning dose stacked with noopept 2-3x/day during 8+ hour research sessions. | anecdotal |
| The Biohacking Specialist | I Injected the Real World Limitless Peptides to See If They Work | 00:18:24 | The host reported using 5 mg orally once a day in the morning for a 14-day cycle, followed by 6-8 weeks off. Dihexa is reported to be orally active and crosses the blood-brain barrier without injection. Per the host's protocol, this was run after establishing a foundation of Epitalon, Pinealon, Semax, and Selank. | anecdotal |
| Cortex Labs | Hacking Dopamine, Injectable L-Carnitine, and Uridine with @VigorousSteve | 00:03:31 | 10 milligrams per dose; daily use eventually feels drug-like | anecdotal |
Where to Buy Dihexa in 2026
No tracked vendor recommendations for Dihexa yet. See our vendor directory.
Side Effects and Safety
Anecdotal reports and study-level observations vary by route, dose, and individual. This page does not provide medical advice. Consult a qualified clinician before any research use.
Experts on side effects and safety · 1 cited mention
"There is more upside in the research for diehexa, but there is a potentially more downside. So, the big thing is this pathway right here, this HGF C-Met, oncologists know that if that is activated and there is active cancer, that is one of the things that's going to help proliferate that cancer."
What Experts Say
4 experts across our source library discuss Dihexa. Each entry is that expert’s most context-rich mention: click to watch it at the exact timestamp in the original video. Quotes are also emitted as Schema.org Quotation JSON-LD for AI assistants.
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“Dihexa, noopept, Ritalin, modafinil, Adderall, bromantane, dextroamphetamine, semax, selank, cerebrolysin. I would look into all of those options before you commit to a selective serotonin...”
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“My go-to right now has been Dihexa. Big Paul has just been on it for a few months now, has already noticed really considerable improvements in his memory. This is something that I'm trying to...”
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“There is more upside in the research for diehexa, but there is a potentially more downside. So, the big thing is this pathway right here, this HGF C-Met, oncologists know that if that is activated...”
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“Tanner reported that his current go-to has been Dihexa, stating that Big Paul has been using it for a few months and has reportedly noticed considerable improvements in memory. Tanner said he is...”
See 10 more expert mentions →
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“But bromantane and Dihexa and noopept together oh my. Verbal fluency galore.”
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“how does it compare to other dopamine energy ks like you dhexa nopeps and some of these neutropics all have a little bit of an overlapping effect”
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“I would take a dex in the morning and then new pept maybe two or three times per day”
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“Diehexa most likely we're going to start with crossing the blood-brain barrier because it's also a small amino acid chain and it is okay in a pill, right? Because it is so small, it will pass...”
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“We do have some good data on the prodrug which is about phase two trials right now. So it's working its way up to potentially getting approved and being used in practice. Dhexa is hitting all of...”
-
“Diehexa, theoretically, is going to strengthen those connections and regrow those connections cuz there's a big like growth signaling portion to diehexa. It's actually growing new tissue, but in...”
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“I feel that broth and dioxin are a little bit more stronger in your central nervous system and your neurological drive than medafanyl.”
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“With Dhexa... DEXA usually you'd want to get in the habit of using it before some kind of cognitively demanding task.”
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“I like new peptin dhexa way more than alpha GPC or broantine, but that's that's basically a crack.”
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“A couple things that it is being actually studied for. Alzheimer's, TBI, right?”
User Reviews
User reviews aggregator coming Q3 2026 (Reddit + YouTube comments + Discord research notes). Until then, see the expert quote section above and PubMed citations below.
Mechanism Research Snapshot
Dihexa research is heavily mechanism-focused: receptor targets, signaling pathways, and pharmacokinetic findings from peer-reviewed PubMed trials. Each line links to the original paper.
- "By acting on key pathways such as PI3K/Akt, mTOR, MAPK, TGF-β, and AMPK, peptides exert influence over tissue regeneration, inflammation resolution, and neuromuscular recovery." · Rahman OF et al, 2026 PubMed
- "Wound-healing peptides such as BPC-157, TB-500, and GHK-Cu promote angiogenesis, integrin-mediated extracellular matrix remodeling, and fibroblast activation, whereas growth hormone secretagogues like ipamorelin, CJC-1295, tesamorelin, sermorelin, and AOD-9604 activate IGF-1 signaling and satellite cell repair." · Rahman OF et al, 2026 PubMed
- "Dihexa activated the PI3K/AKT signaling pathway, while PI3K inhibitor wortmannin significantly reversed the anti-inflammatory and anti-apoptotic effects of APP/PS1 mice." · Sun X et al, 2021 PubMed
- "**DESIGN**: Systematic review of experimental (non-human) studies assessing cognitive effects of RAS peptides angiotensin-(3-8) [Ang IV] and angiotensin-(1-7) [Ang-(1-7)] and their receptors, the Ang IV receptor (AT4R) and the Mas receptor." · Ho JK et al, 2018 PubMed
- "Mas receptor removal was associated with reduced fear memory in one study." · Ho JK et al, 2018 PubMed
- "hPSCs are coaxed through a developmentally relevant route via the primitive streak to definitive endoderm (DE) using the small molecule CHIR99021 (a Wnt agonist), replacing the conventional growth factors Wnt3A and activin A." · Mathapati S et al, 2016 PubMed
- "The resulting hepatoblasts are then differentiated to HLCs with N-hexanoic-Tyr, Ile-6 aminohexanoic amide (Dihexa, a hepatocyte growth factor agonist) and dexamethasone." · Mathapati S et al, 2016 PubMed
- "As a synthetic HGF mimetic, it forms a functional ligand by dimerizing with endogenous HGF to activate the HGF receptor and downstream signaling cascades." · Uribe PM et al, 2015 PubMed
- "Dihexa-mediated protection is attenuated by co-treatment with the HGF antagonist 6-AH, further evidence that HGF activation is a component of the observed protection." · Uribe PM et al, 2015 PubMed
- "This review summarizes available information regarding an overlooked therapeutic target that may offer a treatment to slow and hopefully halt AD, namely the hepatocyte growth factor (HGF)/c-Met receptor system." · Wright JW et al, 2015 PubMed
Research and Studies
15 PubMed-indexed papers reference Dihexa. Top 15 shown.
Legal Status
Dihexa is presented here as a research compound. FDA approval status, scheduling, WADA status, and state-specific telehealth rules may apply. Always verify current regulatory status. Last verified: 2026-07-09.
Frequently Asked Questions
What is Dihexa?
Oral angiotensin IV analog peptide, originally developed for Alzheimer's research. Acts as a strong promoter of synaptogenesis (new synaptic connections).
Is Dihexa FDA-approved?
Dihexa is presented on this page as a research compound. FDA approval status, scheduling, and state-specific rules may apply and change. Verify current regulatory status before any decision.
What dosing is reported for Dihexa?
This page aggregates 6 dosing-protocol mention(s) from named-expert transcripts, each linked to a verbatim source timestamp. See the Dosing Protocols table above. Mentions are anecdotal, not medical advice.
How much research has been published on Dihexa?
15 PubMed-indexed paper(s) reference Dihexa in our current research feed. See the Research and Studies section above for citations.