Dihexa vs Semax
Dihexa: Angiotensin IV derivative. Semax: ACTH(4-10) analog. Per milligram, Semax is cheaper right now (USD 2.55 vs USD 0.600 at the cheapest tested vendor). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Dihexa
A small modified peptide that boosts HGF/c-Met signaling and new synapse formation; improved learning in rodent studies. No human trials.
- What it is
- Angiotensin IV derivative
- Category
- Cognitive & nootropic
- Status
- Not approved. Research use only.
- Cheapest
- USD 2.55 per mg (Qingdao Sigma Chemical QSC)
- Median price
- USD 4.40 per mg
- Vendors
- 3 independently tested, 0 with a lab report
- Research
- Grade C: Mostly animal studies (7 papers)
- Studied as
- tested only in animals or cells
Semax
A seven-amino-acid peptide based on a fragment of ACTH, given as nasal drops. Raises BDNF and is studied for stroke recovery, attention and memory.
- What it is
- ACTH(4-10) analog
- Category
- Cognitive & nootropic
- Status
- Approved in Russia for stroke and cognitive disorders; not approved in the US.
- Cheapest
- USD 0.600 per mg (Uther)
- Median price
- USD 2.60 per mg
- Vendors
- 77 independently tested, 26 with a lab report
- Research
- Grade C: Mostly animal studies (11 papers)
- Studied as
- studied in people
Cheapest tested vendors for Dihexa and Semax
Lowest price per milligram at up to three independently tested vendors each. Rankings are by price only; open a vendor to see its lab results.
| Peptide | Vendor | Per mg |
|---|---|---|
| Dihexa | Qingdao Sigma Chemical QSC | USD 2.55 |
| Lab Rat Peptide | USD 5.50 | |
| Modern Aminos | USD 18.80 | |
| Semax | Uther | USD 0.600 |
| BeiBangAn | USD 0.700 | |
| LN Peptides | USD 0.700 |
Questions people ask
What is the difference between Dihexa and Semax?
Dihexa: Angiotensin IV derivative. Semax: ACTH(4-10) analog. Per milligram, Semax is cheaper right now (USD 2.55 vs USD 0.600 at the cheapest tested vendor). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Which is cheaper, Dihexa or Semax?
Semax is cheaper per mg: USD 2.55 for Dihexa vs USD 0.600 for Semax at the cheapest independently tested vendor. The median listing is USD 4.40 per mg for Dihexa and USD 2.60 per mg for Semax.
Which is easier to find from a tested vendor, Dihexa or Semax?
Semax is sold by more independently tested vendors: 3 list Dihexa (0 publish a lab report for it) and 77 list Semax (26 with a lab report).
Which has more published research, Dihexa or Semax?
Dihexa is graded C (mostly animal studies) from 7 papers and Semax is graded C (mostly animal studies) from 11 papers. Grades count studies of the exact compound only; they describe how much evidence exists, not which one is better.
Are Dihexa and Semax FDA approved?
Dihexa: Not approved. Research use only. Semax: Approved in Russia for stroke and cognitive disorders; not approved in the US.