Dihexa
dy-HEX-ah
A potent cognitive peptide that promotes new brain connections — millions of times more potent than BDNF at stimulating neural growth.
Also known as: N-hexanoic-Tyr-Ile-(6) aminohexanoic amide
Last reviewed: April 2026
What It Does
Dihexa enhances the brain's ability to form new connections (synaptogenesis). It works by activating the HGF/MET receptor system — the same system that drives brain development and repair. In animal studies, it was effective at doses millions of times lower than BDNF, making it extraordinarily potent for cognitive enhancement.
Why People Take It
How It's Administered
Sublingual
Drops or tablet dissolved under the tongue
Frequency
Daily
Pain Level
○○○ None
Self-Administered
Yes — at home
Typical Range
10mg – 20mg
Topical
Cream applied to thin skin (wrists)
Frequency
Daily
Pain Level
○○○ None
Self-Administered
Yes — at home
Typical Range
10mg – 20mg
What To Expect
Week 1–2
Some report improved mental clarity and focus.
Month 1
Enhanced learning capacity and memory recall.
Month 3+
Sustained cognitive improvements. Synaptogenesis takes time.
Side Effects
Overall: Mild
Uncommon (0.1–1%)
Headache
Possible as neural activity increases.
Overstimulation
Some report feeling 'wired' at higher doses.
Who Should NOT Take This
• Active cancer (promotes growth factor signaling)
• Pregnancy
• Limited human safety data — use with caution
Drug Interactions
• Limited data — inform your provider of all medications
Pregnancy: Not studied in pregnancy. Avoid.
Clinical Details
Compare With Similar Peptides
Dihexa is more potent per-dose than other cognitive peptides. Less human data available. Cerebrolysin has more clinical trial support.
Cerebrolysin
A brain-derived peptide mixture used globally for cognitive recovery — contains neurotrophic factors that support brain repair.
Semax
A synthetic brain peptide derived from ACTH that enhances focus, memory, and neuroprotection — developed in Russia.
Selank
A Russian-developed synthetic peptide that reduces anxiety and supports immune function — based on the body's natural tuftsin molecule.
Frequently Asked Questions
We don't currently offer this peptide — but we have protocols for similar goals.
Coming Soon →This is a compounded medication prescribed off-label. It has not been FDA-approved for the uses described. All prescribing decisions are made by your independent licensed provider.