Side-by-side · Research reference

TeriparatidevsVilon

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

AFDA-ApprovedHUMAN-REVIEWED10/62 cited

BAnimal-StrongHUMAN-REVIEWED13/49 cited

Teriparatide

PTH (1-34) Fragment · FDA-Approved

20 mcgDaily dose

12-18 moAnabolic windowFerrari 2026

SQRoute

SQ · Thigh/Abdomen · Once Daily

Vilon

Khavinson Bioregulator · Dipeptide

2 AADipeptide

T-helperStimulatesLinkova 2011

MouseModel basisKhavinson 2002

Literature lacks standardised clinical route

01Mechanism of Action

Parameter

Teriparatide

Vilon

Primary target

Parathyroid hormone 1 receptor (PTH1R) on osteoblastsXue 2026

Immune cell differentiation pathways, chromatin modification

Pathway

PTH1R activation → cAMP/PKA signaling → osteoblast differentiation and activity

Vilon → Thymocyte sphingomyelinase activation → T-helper & cytotoxic T-cell differentiation; epigenetic suppression of aging markers (CCL11, HMGB1)

Downstream effect

Stimulates osteoblast formation and bone matrix deposition; increases bone mineral density at trabecular and cortical sites

Enhanced T-cell differentiation (CD4+, CD8+, B-cells), thymocyte proliferation, modulated IL-1β comitogenic activity, proposed chromatin decondensation in aged lymphocytesLinkova 2011 Khavinson 2002 Lezhava 2023

Feedback intact?

Yes — intermittent dosing preserves anabolic effect; continuous exposure causes catabolic bone resorption

Unknown — no HPA/HPG axis data

Origin

Recombinant 34-amino-acid N-terminal fragment of 84-amino-acid human PTH

Synthetic dipeptide derived from Khavinson thymic peptide extraction studies (Thymalin fraction)Morozov 1997

Antibody development

—

02Dosage Protocols

Parameter

Teriparatide

Vilon

Standard dose (osteoporosis)

20 mcg / day

FDA-approved regimen for severe osteoporosis.

—

Frequency

Once daily

Intermittent administration preserves anabolic effect.

Unknown — literature does not specify chronic administration protocols

Maximum duration

24 months lifetime

Anabolic effect wanes after 12-18 months; FDA recommends max 2-year cumulative exposure.

—

Hypoparathyroidism dose

20 mcg / day

Used off-label for chronic hypoparathyroidism.

—

Evidence basis

RCT / FDA-approved

Mouse / in vitro only

Pelvic fragility fractures

20 mcg / day × 8-12 weeks

Accelerates fracture healing; reduces time to union.Crooks 2026

—

Route

Subcutaneous (thigh or abdomen)

Likely SQ or oral (Khavinson school uses both); no published ROA validation

Timing

Morning or evening (flexible)

—

Storage

Refrigerate 2-8 °C; pen device stable at room temp for 28 days after first use

—

Pharmacogenetics

ALDH2 polymorphisms may influence BMD responseObara 2026

ALDH2*2 variant carriers show altered PTH receptor expression.Obara 2026

—

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.

Duration

—

Not characterised in humans

Half-life

—

Not published — dipeptides typically <10 min plasma t½

03Metabolic / Fat Loss Evidence

Parameter

Teriparatide

Vilon

Fat loss application

None — teriparatide is a bone anabolic agent without direct lipolytic activity

—

04Side Effects & Safety

Parameter

Teriparatide

Vilon

Hypercalcemia

Transient serum calcium elevation 4-6 hours post-injection

Monitor serum calcium; usually asymptomatic.

—

Orthostatic hypotension

Dizziness, lightheadedness within hours of injection

—

Nausea

Common, usually mild and transient

—

Leg cramps / Arthralgia

Musculoskeletal pain reported in clinical trials

—

Hypercalciuria

Increased urinary calcium excretion; monitor for nephrolithiasis risk

—

Osteosarcoma (black box warning)

Rat studies showed dose-dependent osteosarcoma; not observed in humans to date; contraindicated in Paget's disease, skeletal malignancy, prior radiation

—

Injection site reaction

Erythema, bruising, pain (uncommon)

—

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

Teriparatide

·Paget's disease of bone (increased baseline osteosarcoma risk)
·Unexplained elevated alkaline phosphatase
·Prior skeletal radiation therapy
·Skeletal malignancies or bone metastases
·Hypercalcemic disorders (primary hyperparathyroidism)
·Pregnancy / lactation

Vilon

·Active autoimmune disease (theoretical — no clinical data)

Relative Contraindications

Teriparatide

·Active or recent nephrolithiasis
·Severe renal impairment (CKD G4-G5)
·Hypercalciuria without adequate monitoring

Vilon

·Pregnancy / lactation (no safety data)
·Acute infection with cytokine storm risk (immune modulation unknown)

05Administration Protocol

Parameter

Teriparatide

Vilon

1. Device preparation

Teriparatide is supplied in pre-filled pen injectors (Forteo pen). Store refrigerated at 2-8 °C until first use. After first injection, pen may be kept at room temperature for up to 28 days. Do not freeze.

No clinical protocols exist in Western peer-reviewed literature. Russian gerontological practice may use 1–10 mg ranges, but dosing is empirical.

2. Injection site

Subcutaneous injection into thigh or lower abdomen. Rotate sites daily to avoid lipodystrophy. Avoid areas with scars, bruises, or active skin conditions.

Subcutaneous injection (common for Khavinson peptides) or oral (some bioregulators reportedly active orally due to small size). No validated ROA.

3. Timing

Once daily, at approximately the same time each day. Morning or evening administration is acceptable. Take while sitting or lying down to minimize orthostatic hypotension risk.

Unknown — no circadian or meal-timing data. Khavinson school often recommends morning administration.

4. Injection technique

Clean injection site with alcohol swab. Pinch skin, insert needle at 90° angle, and inject full dose (20 mcg). Hold for 5 seconds before withdrawing needle. Do not rub injection site.

Likely lyophilised powder, refrigerated. Reconstitution protocols not published.

5. Monitoring

Baseline and periodic monitoring of serum calcium, urinary calcium, serum PTH (if hypoparathyroidism), and bone mineral density (DXA scan). Monitor for hypercalcemia 4-6 hours post-dose if symptomatic.

—

6. Calcium and vitamin D supplementation

Ensure adequate calcium (1000-1200 mg/day) and vitamin D (800-1000 IU/day) intake unless contraindicated by hypercalcemia or hypercalciuria.

—

06Stack Synergy

Teriparatide

— 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

Morozov 1997 Khavinson 2020