Adalank
- Status
- Preclinical / Research compound, , not approved for human use
- Evidence
-
Not graded on a research bench yet
Adalank is a hybrid research peptide combining structural elements of Adamax (the adamantyl-modified Semax analog) and Selank (the anxiolytic Pro-Gly-Pro tuftsin analog).
Reviewed
01Overview
What Adalank is
Vendors positioned it around 2022-2024 as a single-molecule replacement for users running parallel Adamax + Selank protocols — covering both cognitive enhancement and anxiolysis without two separate intranasal or subcutaneous regimens.
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Important naming caveat. "Adalank" is used by some vendors for the Adamax/Selank hybrid described here. Other vendors use the same name for N-acetyl-Selank-amidate (Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2, ~792.9 Da) — a different compound that is just Selank with acetyl + amide stability caps and no adamantane modification. If you're sourcing Adalank, confirm with the vendor which interpretation their product matches, because the dosing, half-life, and mechanism differ meaningfully between the two.
Evidence base. Peer-reviewed literature for Adalank specifically — under either interpretation — is essentially nonexistent. PubMed returns zero hits for "Adalank" as of 2026. All pharmacological claims are extrapolated from the constituent compounds: Semax (~12 published studies, mostly Russian), Selank (~88 published studies including formal anxiolytic trials), Adamax (zero direct publications), and the broader adamantane-CNS modification literature (amantadine, memantine).
Where it sits. Treat Adalank as a vendor-formulated convenience peptide — Adamax-tier cognitive effects layered onto Selank-tier anxiolytic effects, with no direct head-to-head data versus running the two compounds separately. The hybrid is not a clinical drug, has no FDA or regulatory approval anywhere, and exists primarily as a research peptide sold by a handful of Western vendors (Limitless Life Nootropics, BioLongevity Labs, Olympic Peptide, Pure Lab Peptides). Researchers should approach claims of "30-100x more potent than Selank/Semax" found on vendor sites as vendor-marketing only — there is no published comparison to substantiate the potency multipliers.
How it works
Adamax component - BDNF and TrkB Pathway
The Adamax side of the molecule is hypothesized to upregulate brain-derived neurotrophic factor (BDNF) expression in the hippocampus and modulate TrkB receptor sensitivity. This is the proposed mechanism for the cognitive enhancement signal observed in community protocols - sustained focus, memory consolidation, and motivation.
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Adamax component - D2 Receptor Modulation
Adamax also reportedly modulates dopamine D2 receptor sensitivity in ventral tegmental area / nucleus accumbens motivation circuits. This dopaminergic effect contributes to the "drive" and reward-system response some users report - distinct from but overlapping with stimulant-class effects.
Selank component - GABAergic Anxiolysis
The Selank moiety carries Selank's documented anxiolytic profile: GABAergic modulation without sedation, hippocampal BDNF upregulation (overlapping with the Adamax mechanism), and serotonergic/enkephalin-like effects. Selank does not produce benzodiazepine-like tolerance or withdrawal in published Russian outpatient trials - this is one of the central selling points of the family.
Selank component - Immune Modulation
Selank exhibits tuftsin-like activity: Selank's N-terminal Thr-Lys-Pro-Arg sequence IS tuftsin, a natural immunomodulatory tetrapeptide, and Selank is a synthetic analog built on that tuftsin core [PMID:31625062]. The C-terminal Pro-Gly-Pro is a synthetic stabilizing extension added to slow enzymatic breakdown - it is not derived from tuftsin. Through the tuftsin portion, Selank modulates cytokine balance and produces mild immune-support effects. Whether this carries over to the hybrid Adalank molecule depends on the specific bond chemistry used by the vendor - confirm with the supplier.
Combined effect profile
Users report an "alert calm" subjective state - Adamax-driven motivation and cognitive clarity layered onto Selank-driven anxiolysis. This is similar to running NA-Semax + Selank or P-21 + Selank stacks, but consolidated into one molecule with (claimed) extended half-life from the adamantane modification.
Blood-brain-barrier delivery
The adamantyl group inherited from the Adamax side is the same lipophilic cage structure used in amantadine and memantine to improve BBB permeability. This is hypothesized to lower the effective peripheral dose required to achieve central effects - though no direct PK comparison vs Adamax or Selank alone has been published.
Receptor binding duration
The ~72-hour functional duration after a single dose is an unverified community/vendor claim - no pharmacokinetic study has measured it. It is extrapolated from the parent Adamax marketing claims and used to justify every-other-day dosing schedules, but it should be treated as anecdote, not measured PK.
Studied for
- Cognitive enhancement
- Anxiolysis
- BDNF research
- Dopaminergic modulation
- Hybrid peptide engineering
- Nootropic peptides
Benefits listed
- Combined cognitive enhancement and anxiolysis in one molecule
- Adamax-tier BDNF / TrkB upregulation (inferred from constituent)
- Selank-tier GABAergic anxiolysis without sedation (inferred from constituent)
- Claimed sustained duration (~72 hours) used to justify every-other-day dosing - an unverified community/vendor claim, not measured pharmacokinetics
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- Improved blood-brain-barrier penetration vs unmodified Selank or Semax (adamantane chemistry)
- Subjective "alert calm" - motivation without anxiety, focus without overstimulation
- No reported benzodiazepine-like tolerance or withdrawal (inferred from Selank parent)
02Research
Free with emailWhat the research shows
No research bench grades Adalank yet. Benches compare compounds people pair, with the evidence for each.
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- A summary of the key research
- Safety and side effects
- A link to the PubMed results
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03Safety
Adalank side effects and interactions
Side effects
Common
- Mild headache (often dose-related and self-limiting)
- Transient insomnia if dosed in the evening
- Mild nasal irritation (intranasal route)
- Increased dream activity
- Subjective mood elevation (typically positive)
Less common
- Restlessness or irritability at higher doses
- Mild blood pressure elevation
- Reduced appetite (transient)
Who should not use it
Contraindications
Absolute:
- Pregnancy and lactation — no safety data, multi-mechanism profile creates compounded unknowns
- Active psychiatric instability (acute mania, psychosis) — dopaminergic component may exacerbate
- Pediatric use — not characterized in any age group below adult
- Known hypersensitivity to peptide injections or any constituent peptide
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Relative (caution):
- Bipolar disorder (any phase) — dopaminergic D2 modulation may destabilize mood cycling
- Uncontrolled hypertension — community reports of mild BP elevation at higher doses
- Concurrent benzodiazepines or other GABAergic sedatives — additive effects on alertness
- Concurrent MAOI therapy — theoretical interaction via dopaminergic component
- Recent head trauma — no data; precautionary
- Sleep disorders — late-day dosing can worsen insomnia; restrict dosing to before noon if sleep is fragile
Substance interactions to avoid:
- Stimulants (amphetamines, methylphenidate) — additive dopaminergic load
- Recreational dopaminergic compounds — same concern
Stack overlaps to avoid:
- Semax, Selank, Adamax, P-21 at full simultaneous doses — Adalank already contains the Adamax + Selank pharmacophores
Interactions
11 pairings in our record: 2 to avoid, 6 with a caution and 3 noted as compatible or synergistic. Compatible and synergistic are notes from the record, not safety findings.
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Adamax
AvoidAdalank already contains the Adamax pharmacophore. Stacking is redundant and risks D2 receptor desensitization.
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Selank
AvoidAdalank already contains the Selank pharmacophore. Stacking is redundant.
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Semax
CautionOverlapping BDNF / TrkB / D2 signaling with the Adamax component. Use one or the other.
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P-21
CautionStructural and mechanistic overlap. Avoid full-dose simultaneous stacking.
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N-Acetyl Semax Amidate
CautionMechanism overlaps with the Adamax component of Adalank.
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Benzodiazepines
CautionAdditive GABAergic effects; may produce sedation rather than alert calm.
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MAOIs
CautionTheoretical dopaminergic interaction via Adamax component. Discuss with prescribing clinician.
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Wellbutrin (bupropion)
CautionBoth modulate dopaminergic signaling. Monitor for irritability or restlessness.
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Cerebrolysin
SynergisticNeurotrophic amplification without direct receptor overlap.
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Dihexa
SynergisticComplementary synaptogenic mechanism via HGF signaling.
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BPC-157
CompatibleNeuroprotective baseline without mechanism overlap.
This interaction data is compiled from published research and community reports. It may not be exhaustive. Always consult a healthcare professional before combining compounds.
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04Dosing
Free with emailAdalank dosage and protocols
- Dose range
- 200-1200 mcg per dose (intranasal or subcutaneous), 1-2x daily
- Dosing
- Once or twice daily during cycles. Every-other-day protocols also documented.
- Common vials
- 5mg, 10mg
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- Dose, route, how often and how long
- A titration schedule
- Beginner, intermediate and advanced protocols
- Reconstitution and handling notes
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05Prices
Adalank prices
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06Chemistry
Chemistry and structure
- Molecular formula
- Approximately C58H86N18O14 (calculated from hybrid construct; exact formula depends on linker chemistry)
- Molecular mass
- Not established by mass spectrometry. A Semax-analog + Selank hybrid (adamantyl-modified) would be roughly 1600-1900 Da by summing the constituent peptides minus water at the linkage, but no vendor publishes a verified MS spectrum, so treat any single figure as unconfirmed. The previously listed "~1268 g/mol" value is inconsistent with the stated sequence.
- CAS number
- Not assigned (research peptide, no CAS registry entry as of 2026)
- IUPAC name
- No standardized IUPAC name. Hybrid construct combining N-acetyl-Met-Glu-His-Phe-Pro-Gly-Pro-Ala-Gly-amide (adamantyl-modified) with Thr-Lys-Pro-Arg-Pro-Gly-Pro.
- Amino acid sequence
- Hybrid: Adamax (Ac-MEHFPGPAG-NH2, adamantyl-modified) linked to Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) backbone. Exact bond chemistry varies by vendor — confirm with supplier.
- Half-life
- The commonly cited ~72-hour "functional duration" is an unverified community/vendor claim, not a measured value - no pharmacokinetic study of Adalank has ever been run. The figure is extrapolated from parent Adamax marketing claims. Actual serum half-life is unknown; there is no published PK data.
08Questions
Frequently asked questions
What's the difference between Adalank and just running Adamax + Selank together?
Pharmacologically, the goal is the same - Adamax's cognitive / motivational effects layered onto Selank's anxiolytic effects. The hybrid molecule is sold on a convenience argument (one product, one protocol) and a claimed PK argument (the adamantyl group extends receptor binding versus two separate peptides). There is no head-to-head data published comparing the hybrid to co-administration of the parents. Treat the convenience as real and the PK advantage as plausible-but-unverified.
Why are there no PubMed studies for Adalank?
Adalank is a vendor-formulated research peptide, not a clinical drug. It was not developed in an academic pipeline. Its components (Adamax and Selank) have separate literature bases, but the hybrid itself has zero direct publications. Effects, dosing, and safety are inferred entirely from the constituent compounds and community protocols.
Is Adalank the same thing as N-acetyl-Selank-amidate?
Sometimes - vendors are inconsistent. Some sell 'Adalank' as the Adamax+Selank hybrid described in this entry. Others use the same name for N-acetyl-Selank-amidate (Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2), which is just Selank with acetyl + amide stability caps and no adamantane group. Confirm with the supplier which interpretation their product matches because the dosing, half-life, and mechanism differ.
Intranasal or subcutaneous?
Both are documented. Intranasal is more common for users who already use Selank or Semax that way. Subcutaneous is favored when the vendor's product is larger / more lipophilic and absorbs poorly through nasal mucosa. The choice doesn't dramatically change the effect profile - both routes reach central targets. Subcutaneous gives faster onset; intranasal gives more controlled dose titration.
How long does a cycle last and why washouts?
Typical cycle is 21-30 days on, 7-14 days off. The washout is precautionary - Adalank modulates both BDNF / TrkB / D2 (from the Adamax side) and GABA / serotonergic systems (from the Selank side). Continuous chronic stimulation of any single receptor system risks desensitization. Cycling avoids that risk and preserves response across multiple cycles. There is no formal data establishing the optimal cycle length - these are community-developed precautions.
Can Adalank be used long-term?
There is no long-term safety data - none. Multi-month and multi-year exposure consequences are uncharacterized. Cycling protocols are a precautionary mitigation, not validation of long-term safety. If used across multiple cycles, monitor for mood changes, sleep disruption, and any cardiovascular shifts.
What does Adalank feel like subjectively?
Most users report an 'alert calm' state - focused and motivated without the anxiety that often comes with stimulant-class compounds, and calm without the sedation that often comes with GABAergic compounds. Subjective effects build over 7-10 days. Peak is typically reported in weeks 2-3 of a cycle. Effects taper over 1-2 weeks following the last dose. The ~72-hour 'receptor binding window' often cited for Adalank is an unverified community/vendor claim with no pharmacokinetic data behind it - it is not a measured figure, so treat the taper timeline as anecdotal.
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