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Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

AdamaxvsPNC-27

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

AAnimal-StrongHUMAN-REVIEWED20/47 cited
BAnimal-StrongHUMAN-REVIEWED18/41 cited
Adamax
ACTH(4-10) Analogue · Russian Nootropic
1.4×BDNF protein ↑Dolotov 2006
BDNF mRNA (exon III)Dolotov 2006
1.6×trkB phosphorylationDolotov 2006
Intranasal · Research Use Only
PNC-27
p53-HDM-2 Peptide · Membrane-Targeting
32 AAPeptide lengthSarafraz-Yazdi 2022
12-26p53 domain
Pre-clinicalDevelopment stage
In vitro / Pre-clinical only

01Mechanism of Action

Parameter
Adamax
PNC-27
Primary target
Melanocortin receptors (MC-Rs) in hippocampus and cortex
Membrane-bound HDM-2 protein on cancer cell surfaceSarafraz-Yazdi 2022Krzesaj 2024
Pathway
ACTH(4-10) fragment → MC-R binding → BDNF/trkB upregulation → neurotrophic signaling
PNC-27 binds to membrane HDM-2 1-109 domain → transmembrane pore formation → rapid necrosis (poptosis)Pincus 2024Krzesaj 2024
Downstream effect
Increased hippocampal BDNF expression, trkB tyrosine phosphorylation, enhanced conditioned avoidance learning, circadian rhythm normalizationDolotov 2006Arushanian 2008
Immediate cell lysis and extrusion of intracellular contents; secondary mitochondrial membrane disruptionPincus 2024Krzesaj 2024
Feedback intact?
Non-endocrine — devoid of adrenal axis effectsvan 1978
N/A — cytotoxic mechanism, not signaling modulation
Origin
ACTH(4-10) fragment with modified amino acid sequence at positions 8, 9, 10Teter 2001
Chimeric design: p53 transactivating domain (12-26) fused to penetratin CPP sequenceSarafraz-Yazdi 2022
Antibody development

02Dosage Protocols

Parameter
Adamax
PNC-27
Animal dose (rat)
50 mcg/kg body weightDolotov 2006
Single intranasal application; produced maximal BDNF response.
Route
Frequency
Single-dose or chronic administration protocols
Chronic dosing normalized circadian rhythms; single-dose produced acute BDNF elevation.
Human dose (exploratory)
Not established — limited human data
ACTH(4-10) and analogs dosed 30–60 mcg intranasally in early human studies.
Evidence basis
Animal (rodent, rabbit) studies; minimal human RCT data
Pre-clinical / In vitro
Timing
Variable — chronic administration for circadian effects
Clinical status
Pre-clinical only — no human trials
In vitro and animal model data only.
In vitro concentrations
10–100 μM range
Effective concentrations in cell culture studies.
Shorter analogue
PNC-28 (28 AA variant)
Retains HDM-2 binding and cytotoxic activity.

03Metabolic / Fat Loss Evidence

Parameter
Adamax
PNC-27
Fat loss mechanism
None — cytotoxic anticancer agent

04Side Effects & Safety

Parameter
Adamax
PNC-27
Cardiovascular effects
ACTH(4-10) fragments may have pressor and cardioaccelerator actions at high dosesGruber 1984
Effects attenuated by α/β-receptor antagonists; observed at 30–1000 nmol/kg IV in rats.
Natriuretic effect
ACTH(4-10) exhibited natriuretic activity at lower doses (7 nmol/kg)Gruber 1984
Behavioral suppression
Suppression of aggression, reduced orientation-cognition reactions in rabbitsTeter 2001
May reflect anxiolytic or stress-dampening profile.
Long-term safety
Unknown — chronic human safety data lacking
Human safety data
None available — no human trials conducted
Normal cell selectivity
In vitro: no cytotoxicity to normal cells (MCF-10-2A, peripheral blood mononuclear cells)Sarafraz-Yazdi 2010Thadi 2020
Normal cells express minimal membrane HDM-2.
Cancer cell specificity
Depends on membrane HDM-2 expression levels
Ovarian cancer lines with low membrane HDM-2 showed <30% necrosis.
Cell death mechanism
Necrosis (not apoptosis) — rapid membrane lysisPincus 2024
Mitochondrial effects
Secondary mitochondrial membrane disruption in cancer cells
Absolute Contraindications
Adamax
  • ·Pregnancy and lactation (precautionary; no data)
  • ·Active cardiovascular instability (due to potential pressor effects)
PNC-27
  • ·Human use — no clinical trials or safety data
Relative Contraindications
Adamax
  • ·Hypertension (monitor BP if using higher doses)
  • ·Renal impairment (natriuretic effects may alter electrolyte balance)
PNC-27

05Administration Protocol

Parameter
Adamax
PNC-27
1. Reconstitution (if lyophilised)
Add sterile water or bacteriostatic water to lyophilised vial per manufacturer guidance. Roll gently — do not shake. Ensure clarity before use.
PNC-27 has not been tested in human subjects. All data derive from in vitro cancer cell line studies and limited animal models. No approved clinical formulation, dosing protocol, or safety profile exists.Pincus 2024
2. Route
Intranasal administration is the primary route in animal and exploratory human studies. Delivered via nasal spray or dropper to ensure mucosal absorption.Dolotov 2006Smolnik 2000
In vitro studies used 10–100 μM PNC-27 dissolved in cell culture medium. Peptide was added directly to cancer cell cultures (pancreatic, breast, colon, ovarian, leukemia lines) and incubated for 24–72 hours.
3. Timing
Variable. Single-dose protocols for acute cognitive tasks; chronic daily dosing for circadian rhythm normalization and sustained neuroprotection.
Dual-labeled PNC-27 (green on N-terminus, red on C-terminus) demonstrated intact peptide binding to cancer cell membranes with combined yellow fluorescence at 30 minutes, persisting during cell lysis.Sookraj 2010
4. Storage
Lyophilised: room temperature, light-protected. Reconstituted: refrigerate 2–8 °C, use within manufacturer-specified timeframe.
Cytotoxicity correlates directly with membrane HDM-2 expression levels. Blocking HDM-2's p53-binding domain (1-109) with monoclonal antibodies prevents PNC-27-induced necrosis.

06Stack Synergy

Adamax
+ Semax
Moderate
View Semax

Both Adamax and Semax are ACTH(4-10)-derived nootropics acting via melanocortin receptors and BDNF upregulation. Adamax has distinct amino acid modifications at positions 8-10, potentially offering complementary receptor binding profiles or metabolic stability. Stacking may amplify neurotrophic signaling and cognitive enhancement, though direct synergy studies are absent. Theoretical multi-pathway benefit.

Adamax
Research dose intranasal
Semax
300–600 mcg intranasal
Frequency
Once daily, morning or pre-cognitive task
Primary benefit
Enhanced BDNF upregulation, cognitive performance, neuroprotection
PNC-27
— no documented stacks