Peptide Decoding
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Semax is a acth(4-10) peptide. Adamax is a disputed.

/compare/semax-vs-adamax
ComparisonSemax
ACTH 4-10
Adamax
ADAMAX · Semax analog
How it works
How it works

Semax is seven amino acids based on a fragment of ACTH, a brain-signalling hormone, with the hormonal part removed. It is a nasal spray, and it is a registered medicine in Russia.

How it works

The honest starting point is that nobody selling this agrees on what it is.

What it is
A peptide used for sharper focus, memory, and mental clarity.
A product name that different vendors use for completely different things.
Status
Research only
Research only
Typical dose
0.2–0.6 mg per day
How often
1-2x daily
No established schedule
Stays active
Minutes
Nothing published in humans
Dose comes from
Published human study
No established range
Cycled?
Taken in courses, usually 10 to 14 days, with breaks between Community practice
No established pattern No established range
What it does
Drug class
ACTH(4-10) peptide
Disputed
Used for
Sharpens focus, memory, and mental clarity by raising a brain-growth signal. It works within about half an hour and is used in Russia for stroke recovery and attention.
Marketed for cognition and focus by some sellers, and for growth hormone release and recovery by others.
Receptors hit
Numbers
Full dose line
0.2 up to 0.6 mg per day
Research only
Why that cycle
The Russian clinical literature uses course dosing rather than continuous use, and users report the effect fading if it is taken every day without a break. No controlled study has compared courses against continuous use.
No published human study establishes a schedule.
Weight / effect
Not measured in a trial
Not measured in a trial
Chain length
7 residues
Not disclosed
Common vial
30 mg
10 mg
Before you start
Route
Nasal spray, or injected under the skin
Nasal spray, or injected under the skin
Do not use if
No formal contraindications established outside Russia
Pregnancy
Any use, given that the contents are not defined
Pregnancy or breastfeeding

What separates them

Proof behind the dose. Semax has a dose from a published human study. Adamax has no established dose range at all.

What doesn't differ: They are both taken the same way (nasal spray, or injected under the skin) and aimed at the same thing (focus & brain). Neither has a measured effect size from a published trial, so there is no number to rank them on.

Difference map
Each column keeps its compound color below. A shared gray row means the same answer; colored cells show where they split.
Semax
Adamax
PROOF
Published human study
No established range

What people actually report

Semax

  • Mostly mild nasal irritation or occasional headache, reported from nasal use.
  • No dependence has been reported.
  • Effects from injection have not been studied.
Stop and get help if
  • No serious adverse events have been reported at studied doses
  • Signs of an allergic reaction

Adamax

  • Unknown, because the compound is not defined.
  • Effects reported by users cannot be attributed to any specific molecule.
Stop and get help if
  • Any unexpected effect, since you cannot know what produced it

Side effects are what users and trials report most often, not a complete list. Anything sudden, spreading, or breathing-related is an emergency regardless of which compound caused it.

People also compare

This comparison does not cover cost, long-term safety, or how you personally will respond. Effect figures come from separate trials in different populations and are not always directly comparable to each other. Nothing here is medical advice or a recommendation to use any of these. Talk to a clinician about your own situation.

The published record

What Europe PMC and ClinicalTrials.gov hold for each, on the same rule.

Semax has 398 records. Europe PMC returns nothing for Adamax.

Semax: FDA: Nominated but withdrawn; previously category 2

The published record

Research index

398

Records indexed for Semax

105 in humans, 78 of them original studies.

FDA: Nominated but withdrawn; previously category 2.

Browse the records

In animalsPro
In the labPro
ReviewsPro
Senior author sharePro

Counted from Europe PMC indexing, not read by a person. Human means indexed under humans, which includes reviews and work on human cells. Original studies exclude reviews and lab work on human cells.Last updated 11 September 2026.

The published record

Research index

0

Records indexed for Adamax

Europe PMC was searched on 11 September 2026 and returned nothing.

Counted from Europe PMC indexing, not read by a person.

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19 published

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