Adamax
The peptide sold as an upgraded Semax, with no published study of its own and suppliers who don't agree on what's in the vial.
What is Adamax?
Adamax price today
No vendor we track lists Adamax at a verified per-mg price yet. When one does, today's lowest and median prices appear here.
What people use Adamax for
People who look up Adamax are almost always people who already know Semax. The searches give it away: Adamax vs Semax, Adamax nasal spray, Adamax peptide benefits. What they want is the same thing Semax is bought for, sharper focus and more mental stamina, and the pitch for Adamax is that it delivers that from a smaller amount that lasts longer.
For a lot of women in their forties and fifties the reason is familiar. Words go missing mid-sentence, the afternoon slump arrives before lunch is cleared away, and the coffee that used to fix it now just makes you jittery and still foggy. Semax has a following for exactly that, and Adamax is sold to the people who'd like a stronger or more convenient version of it.
The claims you'll see for Adamax are longer-lasting effect, better delivery into the brain and a stronger result at a lower amount. Every one of those comes from what the added chemistry does in other drugs, not from a measurement of Adamax. That doesn't make them wrong. It makes them predictions.

How Adamax works, in plain words
Start with Semax, a seven-amino-acid peptide made from a piece of the stress hormone ACTH, with the hormone part taken out. It's a prescription nasal drop in Russia, and the case for what it does to focus comes from Russian research on Semax, most of it in animals. Semax breaks down quickly in the body, and that short life is the problem Adamax was built to solve.
The fix is two additions. An acetyl group, a small chemical cap, is meant to slow the enzymes that chew peptides apart. An adamantane group, a rigid cage-shaped molecule, is meant to help it cross into the brain. Adamantane is a well-known building block in drug design and sits inside amantadine and memantine, two approved medicines. Think of it as fitting a sturdier case and a better pair of shoes onto a phone that already works.
Adamax didn't come out of the Russian labs that made Semax. According to community and vendor accounts, it was created and named by Ceretropic, a research chemical company in Mexico, which was the main source for it until the company closed in 2018. No primary company record of that history is publicly available, so take the details as the community's account.
Nasal spray or injection
Adamax is sold the same two ways as Semax. Some vendors sell it as freeze-dried powder in a vial, which people mix with bacteriostatic water (sterile water with a preservative, so one vial can be drawn from more than once) and inject under the skin. Others sell a ready-made nasal spray, and some people put mixed powder in a spray bottle of their own. Old listings described 5 mg and 10 mg vials.
There's no sourced Adamax amount. No study has measured it in people or animals, and no label exists to read one from. The figures on forum and vendor pages are worked out from Semax and adjusted for what the adamantane group is supposed to add. If you want to see what a sourced pattern looks like, the Semax dosage page lays out the Russian label and the vendor convention for Semax, with the source on each.
If you buy a spray, the useful number is milligrams per spray, and it's rarely printed. Divide the milligrams in the bottle by the number of sprays it holds. A mixed vial keeps 28 days in the fridge.
Is Adamax safe?
There's no published safety data on Adamax, in people or in animals. What people tend to do is borrow the Semax picture, where the common reports are feeling wired or restless with larger amounts and trouble sleeping after an afternoon or evening dose. That's a reasonable place to start your questions, but it's Semax's record, not this molecule's.
The bigger issue with Adamax is knowing what's in the vial, because the suppliers don't agree on its structure. We found three descriptions, and they're different molecules.
| Source | What it describes | Molecular weight |
|---|---|---|
| Vendor and community description | Acetyl cap plus adamantane | About 1,117 |
| A catalog supplier's listing | Acetyl cap, no adamantane | 984 |
| An online peptide encyclopedia | Adamantane on the other end | About 1,000, estimated |
The catalog listing comes from BOC Sciences, which sells Adamax. We worked its formula out from the sequence it gives, and the numbers match to two decimal places, which means its own paperwork describes a molecule with no adamantane in it. The encyclopedia entry's formula has no sulfur, and the Semax backbone starts with methionine, which contains sulfur, so that one can't be right. A difference of more than 130 in molecular weight isn't rounding. It's two products sharing a name.
When the certificate arrives, look for three things. It should name the sequence the vendor says it made, give the molecular weight it expected, and show the weight the lab actually measured, close enough to match. If the expected weight is near 984, you're buying the version with no adamantane. If it's near 1,117, you're buying the version the name promises. Either way, you'll know which Adamax you have, which is more than most buyers do.
That's why the one practical step matters most here. Ask the vendor for a certificate of analysis with mass spectrometry, the test that weighs the molecule, and check that the measured mass matches what they say they're selling. A good supplier has it. Pregnancy, breastfeeding, seizure history and anxiety disorders are on the Russian label's list of reasons not to use Semax, and with no Adamax data at all, nothing on that list is known to be safer for the modified version.
Adamax, Semax or N-Acetyl Semax?
Adamax gets confused with N-Acetyl Semax Amidate, often shortened to NA-Semax, and the overlap is real. Both start with Semax and add an acetyl cap. NA-Semax also adds a small cap at the other end, and Adamax is supposed to add the adamantane cage. If the catalog listing above is the version in your vial, what you've bought is closer to an acetylated Semax with two extra amino acids than to anything with adamantane in it.
None of the Semax research used either modified version, so amounts don't carry across from one to the other. Check the full name on the listing before you compare, and compare like with like.
Is Adamax legal?
Adamax isn't approved as a medicine anywhere. The FDA hasn't approved it, and it doesn't have the Russian approval its parent Semax has. In the US it's sold as a research compound, labeled for research use, and buying it for that purpose is legal.
Adamax compared
Our Adamax vs. Semax comparison goes through the two side by side, including the structure problem with the math shown. If you're weighing Adamax, Semax is the one you can actually check against a source, and its sister peptide Selank is what people reach for when the problem is feeling wound up rather than foggy.
If you're choosing between them on cost, remember that Semax is sold widely and priced in our tracker every day, so you can see what a fair price per milligram looks like. A vendor charging far more for Adamax is charging for a promise that hasn't been measured, and a vendor charging far less should be the first one you ask for the mass spectrometry result.
As for buying it, no vendor we track lists it right now. Per-milligram pricing only means something when a milligram is the same thing at every vendor. Until the suppliers agree on the molecule, compare Semax by the milligram.
It's sold for research, and there's no published study of Adamax and no approved product to read a label from.
Adamax compared
Questions people ask about Adamax
Is Adamax better than Semax?
Nobody can say yet, because Adamax has never been studied. Semax has an approved product in Russia and some human research, and Adamax has a design idea and vendor descriptions.
Is there an Adamax nasal spray?
Yes, some vendors sell it as a ready-made spray, and others sell powder that people mix and put in a spray bottle. Ask how many milligrams are in the bottle and how many sprays it holds, since that's the only way to know what each spray carries.
What is the Adamax dosage?
No study or label sets an Adamax amount. The figures on vendor and forum pages are worked out from Semax and from how adamantane behaves in other drugs, not measured in Adamax.
Is Adamax FDA approved?
No. Adamax isn't approved anywhere, including Russia, where its parent Semax is a prescription medicine. In the US it's sold as a research compound.
What are Adamax side effects?
There's no published safety data on Adamax. People reach for the Semax reports instead, where the common complaints are feeling wired and sleeping badly after a late or large dose, but those reports aren't about this molecule.
