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Nootropic peptide
Live data

Dihexa

Cognitive & mood

A synthetic oligopeptide derived from the angiotensin IV fragment.

PNB-0408

Observed median price

$101

0%

12

Active listings

0

Independent lab tests

$9–$469

Observed price range

2

Known aliases

Understand this compound

What is Dihexa?

Preclinical / animal only

An angiotensin-derived peptide studied in synapse-formation and cognition research.

Cognitive & mood

Good to know: Extremely limited human safety data exist despite its high reported preclinical potency; oral bioavailability and long-term effects in humans are unestablished.

How does Dihexa work?

An angiotensin IV-derived peptide that potentiates hepatocyte growth factor (HGF) activity at the c-Met receptor, driving synaptogenesis and dendritic spine formation.

Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.

What is Dihexa researched for?

Studied for cognitive enhancement and neurodegenerative disease via promotion of new synapse formation.

  • Cognitive & moodStudied in memory, focus, mood, and neuroprotection research.
How far has the research gone?

Preclinical / animal research — potent synaptogenic effects shown in rodent models, with essentially no published human clinical data.

Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.

What should I check before buying?
  • Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
  • Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
  • Vendor reputation. See how the vendor is talked about in the community before trusting a new name.

Research context only — VialGrade never gives dosing, medical, or human-use guidance.

US legal status

Research-use-only — not FDA-approved

Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.

Read the full US legal overview →

General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.

Compare by real cost

Cheapest Dihexa, by price per mg

Vials come in different sizes, so the sticker price lies. This ranks every listing by what a milligram actually costs — with independent test purity where we have it.

#VendorSizePricePer mgTested purityReal $/active mg
1Swiss Chems500mg total$98$0.20/mgView
2Umbrella Labs1000mg total1GRAM each$200$0.20/mgView
3Umbrella Labs1000mg total1 vial each$200$0.20/mgView
4Swiss Chems300mg total5mg each$70$0.23/mgView
5Umbrella Labs300mg total5MG each$80$0.27/mgView
6Umbrella Labs10mg total$50$5.00/mgView
7Purerawz10mg total$105$10.5/mgView
8Modern Aminos5mg total$94$18.8/mgView

Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg.

Current market

All Dihexa listings

Dihexa 5MG Modern Aminos
?Not rated yet
Cognitive & mood

$94

$18.8/mg

+7421% vs median/mg

Vendor catalog No lab testLive data

Availability

In stock

Last checked

2 hours ago

Dihexa 10mg PureRawz
C-Grade C-
Cognitive & mood

$105

$10.5/mg

+4100% vs median/mg

Vendor catalog No lab testLive data

Availability

In stock

Last checked

3 hours ago

Dihexa 1 vialPureRawz
C-Grade C-
Cognitive & mood

$469

Vendor catalog No lab testLive data

Availability

In stock

Last checked

3 hours ago

Research notes aren’t product proof

Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.