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

DermorphinvsVilon

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-REVIEWED13/49 cited
Dermorphin
Opioid Peptide · μ-Receptor Agonist · Research Only
~30×Morphine potency
μ-selectiveReceptor typeNegri 1992
D-Ala²Unique featureAmiche 1998
Research only · ICV / SC (animal models)
Vilon
Khavinson Bioregulator · Dipeptide
2 AADipeptide
T-helperStimulatesLinkova 2011
MouseModel basisKhavinson 2002
Literature lacks standardised clinical route

01Mechanism of Action

Parameter
Dermorphin
Vilon
Primary target
μ-opioid receptors (central and peripheral)Negri 1992Steel 2014
Immune cell differentiation pathways, chromatin modification
Pathway
μ-receptor activation → G-protein coupling → adenylyl cyclase inhibition → neuronal hyperpolarization
Vilon → Thymocyte sphingomyelinase activation → T-helper & cytotoxic T-cell differentiation; epigenetic suppression of aging markers (CCL11, HMGB1)
Downstream effect
Potent analgesia, reduced nociceptive signaling, opioid-mediated CNS and peripheral effects
Enhanced T-cell differentiation (CD4+, CD8+, B-cells), thymocyte proliferation, modulated IL-1β comitogenic activity, proposed chromatin decondensation in aged lymphocytesLinkova 2011Khavinson 2002Lezhava 2023
Feedback intact?
N/A — exogenous opioid agonist
Unknown — no HPA/HPG axis data
Origin
Phyllomedusa sauvagei and P. bicolor frog skin — gene-encoded with natural D-amino acid incorporationAmiche 1998Mignogna 1992
Synthetic dipeptide derived from Khavinson thymic peptide extraction studies (Thymalin fraction)Morozov 1997
Antibody development
Site-directed antibodies produced for detection and purificationCucumel 1996

02Dosage Protocols

Parameter
Dermorphin
Vilon
Legal status
Controlled substance in many jurisdictions · Research only
Not approved for human use.
Animal research (ICV)
Low nanomolar to picomolar range
Intracerebroventricular administration in rodent models.
Detection limit (doping)
5 pg/mL in equine plasma/urineSteel 2014
High-throughput LC-MS/MS screen developed for racing industry.
Duration of action
10–120 minutes (dose-dependent, intrathecal)
Evidence basis
Animal studies · In vitro assays
Mouse / in vitro only
Human toxicity
Kambô ritual (P. bicolor skin) — violent emesis, vasodilation, fluid shifts, ADH dysregulationTran 2025
Standard dose
No clinical standard — literature lacks human dosing
Russian practice: often combined with other Khavinson peptides; no FDA/EMA trials.
Animal model dose
In vitro: 0.01–10 μg/mL culture medium (mouse thymocytes)
Not translatable to human mg/kg without pharmacokinetic data.
Frequency
Unknown — literature does not specify chronic administration protocols
Duration
Not characterised in humans
Route
Likely SQ or oral (Khavinson school uses both); no published ROA validation
Half-life
Not published — dipeptides typically <10 min plasma t½

04Side Effects & Safety

Parameter
Dermorphin
Vilon
Opioid effects
Respiratory depression, sedation, euphoria, tolerance, dependence risk
CNS effects
Analgesia (high-affinity sites), catalepsy (low-affinity sites)Negri 1992
Kambô ritual toxicity
Violent emesis, vasodilation, profound fluid shifts, hyponatremia, ADH dysregulation, brain death (case report)Tran 2025
Peripheral effects
GI motility inhibition (ileum > vas deferens in vitro)Negri 1992
Receptor selectivity caveat
Two μ-receptor subtypes — differential behavioral effects (analgesia vs. catalepsy)Negri 1992
Proteolytic stability
Tyr³-Pro⁶ bond relatively unstable; endogenous enzymes may produce tetrapeptide fragmentsCucumel 1996
Human safety data
Absent from PubMed-indexed literature
Theoretical risk
Immune hyperactivation in autoimmune-prone individuals (T-cell differentiation enhancement)
Antibody formation
Not reported; dipeptides generally low immunogenicity
Animal models
No adverse effects noted in mouse thymocyte or pineal lymphoid cultures
Absolute Contraindications
Dermorphin
  • ·Human use — not approved by any regulatory authority
  • ·Controlled substance status — possession illegal in many jurisdictions
  • ·Known opioid hypersensitivity or respiratory compromise
Vilon
  • ·Active autoimmune disease (theoretical — no clinical data)
Relative Contraindications
Dermorphin
  • ·Any context outside approved animal research protocols
  • ·CNS depressant co-administration
Vilon
  • ·Pregnancy / lactation (no safety data)
  • ·Acute infection with cytokine storm risk (immune modulation unknown)

05Administration Protocol

Parameter
Dermorphin
Vilon
1. Legal and ethical framework
Dermorphin is a controlled substance in many jurisdictions and is not approved for human use. Possession, synthesis, or distribution may be illegal. Use is restricted to licensed research settings under institutional review.
No clinical protocols exist in Western peer-reviewed literature. Russian gerontological practice may use 1–10 mg ranges, but dosing is empirical.
2. Animal research protocols
In rodent models, intracerebroventricular (ICV) or intrathecal injection is used at nanomolar to picomolar concentrations. Subcutaneous administration also documented. All protocols require IACUC approval.
Subcutaneous injection (common for Khavinson peptides) or oral (some bioregulators reportedly active orally due to small size). No validated ROA.
3. Analytical detection
High-throughput LC-MS/MS screens developed for anti-doping programs detect dermorphin and 17 related peptides in equine and human urine/plasma at limits as low as 5 pg/mL.Steel 2014
Unknown — no circadian or meal-timing data. Khavinson school often recommends morning administration.
4. Kambô ritual (traditional use)
Application of Phyllomedusa bicolor skin secretions to superficial burns. Not recommended — associated with severe toxicity including violent emesis, hyponatremia, and documented case of brain death.Tran 2025
Likely lyophilised powder, refrigerated. Reconstitution protocols not published.

06Stack Synergy

Dermorphin
— no documented stacks
Vilon
+ Epitalon
Moderate
View Epitalon

Both are Khavinson bioregulators targeting aging pathways. Epitalon (Ala-Glu-Asp-Gly) acts on telomerase and pineal function; Vilon on immune differentiation and chromatin decondensation. Combined in Russian gerontological protocols for multi-system aging intervention. Lezhava et al. (2023) tested both on aged lymphocyte chromatin, showing distinct epigenetic effects. Complementary, not synergistic in strict pharmacological sense.

Vilon
Empirical — no standard
Epitalon
Empirical — often 10 mg cycles
Frequency
Sequential or concurrent (literature ambiguous)
Primary benefit
Multi-system aging modulation (immune + pineal/circadian)
+ Thymalin
Weak
View Thymalin

Thymalin is the parent polypeptide complex from which Vilon was isolated. Both target immune differentiation, but Thymalin is a complex mixture (multiple peptides), whereas Vilon is a purified dipeptide. Morozov & Khavinson (1997) described Vilon as a synthetic successor designed to replicate Thymalin's immunomodulatory effects with greater specificity. Redundant in practice; no published combination studies.

Vilon
No standard
Thymalin
10–100 mg IM (polypeptide complex)
Primary benefit
Redundant — both target T-cell differentiation