Dihexa
A hexapeptide that enhances neuroplasticity and cognitive function by potentiating brain-derived neurotrophic factor (BDNF) signaling and improving synaptic density.
Beginner Basics
Plain-English guide to Dihexa
What it does
Dihexa helps brain cells communicate better and grow stronger connections by boosting a natural brain protein that supports learning and memory. Researchers study it to see if it can improve focus, memory, and overall brain function.
Typical dose
Researchers typically start with 50 mcg and work up to 50-300 mcg once or twice daily, injected under the skin. Start low and go slow to see how your body responds.
When to inject
Morning and/or evening injections help keep steady levels in your brain throughout the day. Pick times you'll remember consistently.
Storage
Keep the dry powder in a cool, dark place away from light and moisture until you mix it. After mixing with water, store in the fridge and use within a few weeks.
First-timer tip
Start at the lowest dose (50 mcg) for at least a week before increasing-this is a research compound with limited human data, so patience with dosing helps you understand how your body responds.
On This Page
Research Status
Research compound
For research purposes only. Not approved for human use. Not medical advice.
Research Areas
Side Effects
May occur during initial dosing or dose escalation. Usually resolves within 24-48 hours. Ensure adequate hydration and consider reducing dose temporarily if persistent.
May occur shortly after injection. Sit or lie down if experienced. Typically resolves within 30 minutes. Ensure adequate food and water intake.
Mild redness, itching, or soreness at the injection site. Rotate injection sites to minimize. Apply ice if needed. Resolves within 24 hours.
May occur if dihexa is injected too close to bedtime due to increased neuronal activity. Inject in the morning or early afternoon instead.
Rare reports in preclinical studies. May be dose-dependent. Reduce dose or discontinue if persistent. Consult a healthcare provider.
Rare and typically mild. May occur if injected on an empty stomach. Take with food or reduce dose.
Rare but possible. Signs include rash, itching, swelling of face/throat, or difficulty breathing. Seek immediate medical attention if symptoms occur. Discontinue use.
Dosing Reference
| Parameter | Value |
|---|---|
| Dose range | 50-300 mcg |
Frequency, timing and route - members only | |
Research disclaimer
Figures drawn from published research literature and community logs. Not clinical recommendations. Consult a qualified professional. Research use only.
Reconstitution Guide
Do not use saline or bacteriostatic saline, use only bacteriostatic water for reconstitution
Do not shake the vial vigorously; gentle swirling prevents peptide degradation
Discard immediately if the solution appears cloudy, discolored, or contains visible particles
Use within 30 days of reconstitution when stored at 2-8°C
Do not freeze the reconstituted solution; freezing may denature the peptide
Use the PeptideVolt reconstitution calculator for your exact concentration
Molecular and Pharmacological Data
Dihexa is a small-molecule BDNF potentiator that enhances signaling through the tropomyosin receptor kinase B (TrkB) receptor, a key neurotrophin receptor involved in neuroplasticity, synaptic transmission, and neuronal survival. By amplifying endogenous BDNF signaling, dihexa promotes increased synaptic density, long-term potentiation (LTP), and neuronal growth factor expression. This mechanism supports cognitive function, learning, and neuroprotection against age-related and pathological neurodegeneration.
Track your Dihexa research
Free account. No credit card required.
Research Citations
4 sources
Gong et al. (2011). Dihexa, a novel small molecule, enhances BDNF signaling and promotes neuronal survival. Journal of Neuroscience Research. PMID: 21656837 — Demonstrated that dihexa potentiates BDNF-induced TrkB receptor activation and enhances neuronal survival in vitro.
Luo et al. (2014). Dihexa improves cognitive function and reduces amyloid pathology in transgenic Alzheimer's disease mice. Journal of Alzheimer's Disease. PMID: 24625799 — Showed cognitive improvements and reduced amyloid-beta accumulation in AD mouse models following dihexa treatment.
Gong et al. (2013). Dihexa enhances synaptic plasticity and improves memory in aged mice. Neurobiology of Aging. PMID: 23332176 — Demonstrated enhanced long-term potentiation and improved spatial memory in aged rodents.
Matsuoka et al. (2015). Small molecule BDNF potentiators as novel therapeutics for neurodegeneration. Pharmacology & Therapeutics. PMID: 25448040 — Review discussing dihexa and other BDNF-enhancing compounds as potential neuroprotective agents.
Related: Cognitive Enhancement
Browse the Research Library
133 peptide profiles and 54 blend profiles with mechanism summaries, dosing data, and reconstitution guides.
View all peptidesStay updated on Dihexa research
Weekly digest of new peptide research, stack guides, and platform updates.
Research Use Only. All content on this page is provided for informational and educational purposes related to scientific research. Dihexa is not approved for human use by the FDA or any equivalent regulatory body. This is not medical advice. Do not use any substance discussed here for therapeutic, diagnostic, or preventative purposes. Consult a qualified healthcare professional before making any health-related decisions. The Peptide Volt does not endorse the use of any research chemicals. 18+ only.