BDNF (Brain-Derived Neurotrophic Factor)
Brain-Derived Neurotrophic Factor is a key neurotrophin — a protein that supports the survival, growth, and differentiation of neurons. BDNF plays a central role in neuroplasticity, learning, memory formation, and mood regulation. Low BDNF levels are associated with depression, cognitive decline, and neurodegenerative diseases. Supplemental BDNF (subcutaneous injection) aims to restore healthy neurotrophin signaling, support cognitive performance, and protect against age-related brain decline.
Frequency
Daily
Cycle Length
4-8 weeks on, 4 weeks off
Route
Subcutaneous
Research Level
Experimental
Goals
Dosing Protocol
500 mcg to 2 mg daily (5-20 units). With standard reconstitution (10 mg in 1 mL), 0.1 mg per unit — 5 units = 500 mcg, 20 units = 2 mg on a U-100 insulin syringe.
Reconstitution
Add 1 mL bacteriostatic water to a 10 mg vial.
Timing
Morning for cognitive benefits.
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Potential Side Effects
- Injection site irritation
- Headache
- Limited human safety data — use with caution
- Potential for vivid dreams
Important Warnings
- Extremely potent — precise dosing is critical
- Very limited human supplementation data
- Not for use during pregnancy
Research References
- Barde YA, et al. EMBO J. 1982;1(5):549-553. doi:10.1002/j.1460-2075.1982.tb01207.x
- Miranda M, et al. Front Cell Neurosci. 2019;13:363. doi:10.3389/fncel.2019.00363
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Medical Disclaimer: This information is for educational purposes only and is not intended as medical advice. BDNF (Brain-Derived Neurotrophic Factor) may be regulated differently in various jurisdictions. Always consult with a qualified healthcare provider before beginning any peptide protocol. PepStack Pro does not sell peptides or provide medical advice. Content reviewed by Dr. Seth Miller, MD.