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

CrystagenvsPTD-DBM

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

AAnimal-MechanisticHUMAN-REVIEWED12/40 cited
BAnimal-StrongHUMAN-REVIEWED10/40 cited
Crystagen
Khavinson Bioregulator · Immune-Thymic
B-cellPrimary targetСhervyakova 2014
SpleenTissue specificityСhervyakova 2014
AnimalEvidence level
SQ · Protocol variable
PTD-DBM
Wnt Pathway Activator · Fusion Peptide
Topical / SQAdministrationLee 2023Ryu 2023
Animal-onlyEvidence level
Wnt/β-cateninPrimary pathway
Topical / SQ · Study-dependent

01Mechanism of Action

Parameter
Crystagen
PTD-DBM
Primary target
B-lymphocytes in splenic tissueСhervyakova 2014
CXXC5–Dishevelled protein-protein interaction
Pathway
B-cell activation → Immune modulation during agingСhervyakova 2014
Inhibit CXXC5 binding to Dishevelled → Release Wnt/β-catenin pathway inhibitionLee 2015Ryu 2023
Downstream effect
B-cell activation via apoptosis reduction; no observed increase in splenic cell renewalСhervyakova 2014
Activated Wnt/β-catenin signaling promotes hair follicle regeneration, dermal stem cell activation, reduced myofibroblast differentiation
Feedback intact?
Unknown — bioregulator mechanism not fully characterized
Not applicable — pathway derepression rather than receptor agonism
Origin
Synthetic Lys-Glu-Asp-Gly tetrapeptide — Khavinson bioregulator series
Engineered fusion: cell-penetrating PTD sequence + Dvl-binding motif targeting CXXC5
Antibody development

02Dosage Protocols

Parameter
Crystagen
PTD-DBM
Standard dose
Not standardized — variable protocols
Russian bioregulator literature does not specify unified human dosing.
Evidence basis
Animal / mechanistic
Animal models only (mice)
Route
Subcutaneous (presumed from bioregulator class)
Frequency
Unknown — bioregulator protocols variable
Duration
Unknown — chronic administration presumed in animal models
Half-life
Not reported
Wound healing protocol
Hydrogel patch delivery (concentration not disclosed)
Pyrogallol-HA patch, murine model.
Hair regeneration protocol
Topical application (exact dose not disclosed)
Wound-induced hair neogenesis model, mice.
Co-administration
Valproic acid (GSK-3β inhibitor) for wound healing synergyLee 2023
Combined treatment maximized scar reduction.
Human translation
No published human studies

04Side Effects & Safety

Parameter
Crystagen
PTD-DBM
Published adverse events
None reported in available animal literature
Human safety data
Absent — no controlled human trials identified
Autoimmune considerations
Theoretical concern with B-cell modulators in predisposed individuals
Reported adverse events
None reported in animal studies
Wnt pathway activation risks
Theoretical risk of aberrant proliferation; Wnt dysregulation linked to tumorigenesis
Long-term safety
Unknown — no chronic dosing or human data
Delivery vehicle effects
HA-PG hydrogel well-tolerated in mice; human translation pending
Absolute Contraindications
Crystagen
  • ·Active autoimmune disease (theoretical)
PTD-DBM
  • ·Active malignancy (Wnt pathway involvement in tumorigenesis)
  • ·Pregnancy / lactation (no safety data)
Relative Contraindications
Crystagen
  • ·Pregnancy / lactation (no data)
  • ·Active B-cell malignancies
PTD-DBM
  • ·History of Wnt-driven tumors
  • ·Skin lesions with uncertain malignant potential

05Administration Protocol

Parameter
Crystagen
PTD-DBM
1. Route
Subcutaneous injection — presumed from bioregulator class convention. Specific anatomical sites not standardized.
Pyrogallol-functionalized hyaluronic acid (HA-PG) hydrogel patch loaded with PTD-DBM peptide, applied directly to wound bed. Adhesive hydrogel provides sustained release over multiple days.Lee 2023
2. Reconstitution
Protocol not standardized. If lyophilized, sterile water or bacteriostatic saline typical for peptide bioregulators.
Topical application to scalp or wound site. Precise formulation not disclosed; studies used Cxxc5 knockout or direct peptide application in wound-induced hair neogenesis models.Ryu 2023
3. Timing
Not specified. Bioregulator protocols vary — some practitioners advocate evening dosing, others morning.
PTD-DBM + valproic acid (GSK-3β inhibitor) in HA-PG patch showed synergistic effect on scar reduction and regenerative wound healing. VPA enhances Wnt pathway activation downstream.Lee 2023
4. Storage
Lyophilized: room temperature, light-protected. Reconstituted: refrigerate, use within days to weeks depending on preservative.
Not disclosed in available literature. Peptide stability and storage conditions not published.

06Stack Synergy

Crystagen
+ Vilon
Multi-pathway
View Vilon

Vilon (Lys-Glu) activates T-helper cells via apoptosis reduction, while Crystagen activates B-cells. Dual T/B immune modulation in aging models may provide complementary thymic-immune support within the Khavinson bioregulator framework. Both target splenic immune aging through distinct lymphocyte subsets.

Crystagen
Dose unknown · SQ
Vilon
Dose unknown · SQ
Frequency
Protocol variable
Primary benefit
Broader thymic-immune coverage (T-cell + B-cell)
PTD-DBM
— no documented stacks