Quick Comparison
| Bronchogen | Crystagen | |
|---|---|---|
| Half-Life | Approximately 30 minutes (acute pharmacology); proposed gene-expression effects outlast plasma exposure | Approximately 30 minutes (acute pharmacology); proposed gene-expression effects outlast plasma exposure |
| Typical Dosage | Oral (capsule): 100-200 mg once daily for 10-30 day cycles, repeated 2-3 times per year. Subcutaneous injection: 1-5 mg per dose, alternate days for 10-20 day cycles. Standard Khavinson pulse-dosing protocol. | Oral (capsule): 100-200 mg once daily for 10-30 day cycles, repeated 2-3 times per year. Subcutaneous injection: 1-5 mg per dose, alternate days for 10-20 day cycles. Standard Khavinson cycling protocol. |
| Administration | Oral capsule or subcutaneous injection (cycled) | Oral capsule or subcutaneous injection (cycled) |
| Research Papers | 5 papers | 1 papers |
| Categories |
Mechanism of Action
Bronchogen
Bronchogen is a Khavinson tetrapeptide (Ala-Glu-Asp-Leu) positioned as the respiratory-system bioregulator within the wider Khavinson peptide family. The proposed mechanism follows the family-wide framework: tissue-derived short peptides preferentially target the same tissue type from which they were originally identified, binding to gene promoter sequences and modulating expression of tissue-specific genes.
For bronchogen, proposed targets include genes regulating bronchial epithelial cell proliferation and differentiation, surfactant production by alveolar type II cells, ciliary function in airway epithelium, and local immune regulation in respiratory mucosa. Russian research has reported bronchogen-induced improvements in lung function markers in animal models of chronic respiratory injury and in elderly populations with age-related pulmonary decline. Cellular studies have suggested effects on mucociliary clearance and reductions in airway inflammation markers.
As with all Khavinson cytogens and cytamins, the evidence base is concentrated in Russian gerontology and pulmonology research traditions with limited independent Western validation. Bronchogen is not a substitute for evidence-based treatment of asthma, chronic obstructive pulmonary disease, or other diagnosed respiratory conditions, and its role in respiratory health should be considered exploratory rather than established. The brief plasma half-life (around 30 minutes) reflects the family-wide model of transient signalling triggering longer-lasting transcriptional effects.
Crystagen
Crystagen is a short Khavinson tripeptide (Glu-Asp-Pro) positioned as the immune and thymus-targeted bioregulator within the wider Khavinson peptide family. The proposed mechanism follows the standard family framework: short peptides interact with gene promoter sequences in thymic and lymphocyte cell nuclei, modulating expression of genes involved in T cell maturation, cytokine production, and broader immune regulation.
Proposed effects include support for thymic function — particularly relevant given the well-documented age-related thymic involution that contributes to immunosenescence in older adults — alongside modulation of lymphocyte chromatin organisation and immune cell maturation pathways. Russian research has reported crystagen-induced improvements in lymphocyte counts, T helper cell function, and clinical recovery from infections in elderly populations and in patients recovering from immunosuppressive treatments. The peptide is often used alongside thymalin (a related thymic peptide preparation also in this database) as part of broader Khavinson immune-support protocols.
As with the rest of the Khavinson family, the efficacy evidence base sits within Russian gerontology and immunology research with limited independent Western validation. Crystagen is not validated as a treatment for primary immunodeficiency, HIV-related immune dysfunction, or other formally diagnosed immune conditions, and should not displace evidence-based immune therapy. The brief plasma half-life (around 30 minutes) reflects the proposed model of transient signalling triggering longer-lasting transcriptional changes in immune cell populations.
Risks & Safety
Bronchogen
Common
generally well tolerated in Russian observational studies.
Serious
very limited Western clinical data; not a substitute for evidence-based treatment of asthma, COPD, or other chronic respiratory disease.
Rare
allergic reactions.
Crystagen
Common
generally reported as well tolerated.
Serious
very limited Western clinical data; theoretical concern with use in autoimmune disease (immune-modulating peptides may unpredictably affect autoimmune activity).
Rare
allergic reactions. Should not replace evidence-based immune therapy in serious immunodeficiency.
Full Profiles
Bronchogen →
A Khavinson tetrapeptide (Ala-Glu-Asp-Leu) developed in Russia as a tissue-specific bioregulator targeting the lungs and respiratory tract. Promoted for chronic respiratory conditions, age-related decline in lung function, and recovery from respiratory illness. Like the other Khavinson cytamins, the evidence base is dominated by Russian research and not independently validated in Western clinical practice.
Crystagen →
A Khavinson tripeptide (Glu-Asp-Pro) developed in Russia as a tissue-specific bioregulator targeting the thymus and broader immune system. Promoted for age-related immune decline (immunosenescence), recovery from immunosuppressive treatments, and as a general immune support during the cold and flu season. Within the same Khavinson family as thymalin and thymosin alpha-1, both already in your database.