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

CardiogenvsHumanin

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

AAnimal-MechanisticHUMAN-REVIEWED5/46 cited
BAnimal-StrongHUMAN-REVIEWED14/52 cited
Cardiogen
Bioregulator · Cardiac
CardiacTissue target
Gene regulationMechanism
AnimalEvidence level
SQ · Variable protocols
Humanin
Mitochondrial-Derived Peptide · Cytoprotective
24-AAPeptide lengthZhu 2022
mtDNAEncoded originZhu 2022Shahzaib 2026
Bax/BimPrimary targetZhu 2022Morris 2021
SQ · Experimental

01Mechanism of Action

Parameter
Cardiogen
Humanin
Primary target
Cardiovascular cell gene expressionKhavinson 2022
Intracellular: Bax, Bim, tBid (pro-apoptotic Bcl-2 family). Extracellular: FPRL1/2 G-protein-coupled receptorsZhu 2022Lue 2021
Pathway
Peptide bioregulation → modulation of SASP / inflammaging → cardiac tissue homeostasisKhavinson 2022
Humanin binds Bax/Bim → inhibits mitochondrial outer membrane permeabilization (MOMP) → blocks cytochrome c release → prevents caspase activation → cell survival
Downstream effect
Suppression of senescence-associated secretory phenotype (SASP), reduction of age-related inflammatory markers, modulation of heat shock protein expression in cardiac tissue
Suppression of apoptosis, mitochondrial stabilization, reduced oxidative stress, preservation of germ cells and neurons under stressZhu 2022Lue 2021Velentza 2024
Feedback intact?
Presumed — peptide bioregulators act via gene regulation, not receptor agonism
Not applicable — peptide acts as anti-apoptotic signal, not hormonal axis
Origin
Derived from cardiac tissue peptide extracts; synthetic analogue based on Khavinson bioregulator methodology
Encoded by short open reading frame in mitochondrial 16S rRNA gene (MTRNR2). 24-28 amino acids. 13 homologous variants (MTRNR2L1-L13) identified.Zhu 2022Shahzaib 2026
Antibody development
Not reported in animal models

02Dosage Protocols

Parameter
Cardiogen
Humanin
Standard dose
Variable — typically 10–20 mg per course
No standardised human protocol; animal-derived dosing.
Frequency
Intermittent courses — 10–20 days, repeated periodically
Khavinson-school bioregulators typically dosed as periodic interventions, not continuous.
Daily (IP)
Evidence basis
Animal models / mechanistic studies
No Phase 1+ human trials in PubMed.
Animal models (rat, mouse)Huang 2025El 2022Velentza 2024
Route
Subcutaneous injection
Duration
10–20 day courses, repeated 2–4× per year
Russian geriatric protocols; unclear extrapolation to general populations.
8–12 weeks in animal studies
Standard experimental dose (HNG)
4 mg/kg IP (rat)
Most common dose in rodent models.
Ex vivo bone culture
1 µg/mL
Protective against venetoclax-induced bone growth retardation.
Human data
None — no clinical trials reported
Analog (HNG)
Gly[14]-humanin — more potent variant
Substitution at position 14 enhances cytoprotective activity.

03Metabolic / Fat Loss Evidence

Parameter
Cardiogen
Humanin
Direct fat loss evidence
None
Mechanism overlap
Mitochondrial health may indirectly influence metabolic efficiency, but no quantified effect

04Side Effects & Safety

Parameter
Cardiogen
Humanin
Injection site reactions
Mild erythema, induration (presumed)
Systemic adverse events
No documented serious AEs in available literature
Very limited safety data; no rigorous pharmacovigilance.
Immunogenicity
Unknown — no antibody development studies published
Long-term safety
Unknown — no extended human trials indexed in PubMed
Animal model safety
Well-tolerated in rat and mouse studies at 4 mg/kg for 8–12 weeks
Human safety data
None — no clinical trials
Theoretical fibrillation risk
Induces amyloid-like fibrillation of Bax/BID. Long-term sequelae unknown.
Injection site reaction
Not reported in animal studies (IP route)
Reproductive safety
Protective in POI model (cyclophosphamide-induced), no adverse effects on fertility notedHuang 2025
Absolute Contraindications
Cardiogen
  • ·Active malignancy (theoretical peptide growth factor concern)
  • ·Hypersensitivity to peptide components
Humanin
  • ·Unknown — no human data
Relative Contraindications
Cardiogen
  • ·Acute cardiac events (no safety data in acute MI, unstable angina)
  • ·Pregnancy / lactation (no reproductive toxicity data)
Humanin
  • ·Active malignancy (theoretical risk of anti-apoptotic effect on tumour cells)

05Administration Protocol

Parameter
Cardiogen
Humanin
1. Reconstitution
Add sterile water or saline per manufacturer instructions (typically 1–2 mL per lyophilised vial). Roll gently to dissolve.
Intraperitoneal (IP) in animal models. Subcutaneous route untested. No human protocols exist.
2. Injection site
Subcutaneous — abdomen or thigh. Rotate sites. Use sterile technique.
Synthetic peptide reconstituted in sterile saline or PBS. No commercial formulation available.
3. Timing
Variable — often evening injection. No established circadian preference.
Daily administration in animal studies. Optimal timing not characterized.
4. Storage
Lyophilised: refrigerate 2–8 °C, protect from light. Reconstituted: use immediately or refrigerate, discard after 7–14 days per labeling.
Lyophilised powder: -20 °C. Reconstituted: 4 °C, use within 7 days. Avoid freeze-thaw cycles.
5. Needle
27–30G insulin syringe, 45° angle for subcutaneous administration.
No FDA approval, no IND, no clinical trials. Experimental research tool only.

06Stack Synergy

Cardiogen
+ Thymalin
Moderate
View Thymalin

Khavinson-school multi-organ bioregulator approach: thymalin (thymic peptide) addresses immune senescence while cardiogen targets cardiac tissue. Combined use in geriatric populations demonstrated normalisation of cardiovascular, endocrine, and immune parameters with reduced mortality over 6–8 years of observation.

Cardiogen
10–20 mg SQ · 10–20 day course
Thymalin
10–30 mg IM · concurrent or sequential courses
Frequency
2–4 courses per year
Primary benefit
Multi-system aging mitigation, cardiovascular and immune homeostasis
Humanin
+ MOTS-c
Multi-pathway
View MOTS-c

Both are mitochondrial-derived peptides. MOTS-c enhances metabolic efficiency and insulin sensitivity via AMPK activation, while humanin prevents mitochondrial apoptosis. Combined, they address mitochondrial function (MOTS-c) and survival signaling (humanin), supporting cellular resilience under metabolic and oxidative stress.

Humanin
4 mg/kg IP · daily (animal model)
MOTS-c
5 mg/kg IP · daily (animal model)
Frequency
Once daily
Primary benefit
Mitochondrial health, metabolic efficiency, anti-apoptotic signaling