# Taxorest

> A natural bronchial peptide complex (Cytomax A-17) — the extract-based counterpart to Bronchogen, targeting respiratory tissue.

- Also known as: A-17 bronchi peptide, respiratory peptide complex
- Class: Immune, Bioregulators
- FDA approved: No
- Canonical page: https://americanpeptide.com/catalog/taxorest

## Overview

Taxorest is a natural peptide complex extracted from bronchial tissue (peptide complex A-17), part of the Russian Cytomax / Revilab bioregulator line. It is the extract-based respiratory counterpart to the synthetic tetrapeptide Bronchogen (Ala-Glu-Asp-Pro), marketed within the Khavinson tradition for bronchial and respiratory support.

Taxorest is the bronchi-directed natural bioregulator of the Cytomax / Revilab line. It pairs with Bronchogen, the synthetic Ala-Glu-Asp-Pro tetrapeptide already catalogued: Taxorest is the natural bronchial extract, Bronchogen the defined synthetic short peptide modeled on the same tissue.

As a tissue extract it is a standardized polypeptide fraction with no single molecular formula or sequence. Its respiratory claims come from the same concentrated research tradition as the rest of the series, with limited independent replication, and it is not FDA-approved.

## Mechanism

Proposed tissue-selective (bioregulator) modulation of bronchial-epithelium gene expression, in the same lineage as the synthetic bronchi peptide Bronchogen.

## Research areas

Studied in: Respiratory health, Aging biology, Peptide bioregulators.

Guides on this site:

- [Longevity & Aging](https://americanpeptide.com/research-areas/longevity-aging): Peptides studied across the aging axis — senescence, NAD+, and resilience.
- [Peptide Bioregulators](https://americanpeptide.com/research-areas/bioregulators): Short, tissue-specific peptides proposed to regulate gene expression — the Khavinson series.

## Key research

- Respiratory bioregulator — a natural bronchial peptide extract (complex A-17), the extract counterpart to synthetic Bronchogen.
- Bronchial focus — marketed for respiratory-tract support within Khavinson protocols.
- A tissue extract — a polypeptide fraction with no single formula or sequence.
- Evidence quality — concentrated in one research tradition; preliminary. Not FDA-approved.

## Storage, handling & synthesis

**Synthesis.** Taxorest is a natural bronchial peptide extract (complex A-17), a fractionated polypeptide preparation rather than a synthesized peptide. Consistency and characterization of the extract determine its quality.

## FAQs

### What is Taxorest?

Taxorest is a natural bronchial peptide complex (Cytomax A-17), marketed for respiratory support — the extract-based counterpart to the synthetic peptide Bronchogen.

### How does it relate to Bronchogen?

Taxorest is the natural bronchial extract; Bronchogen is the defined synthetic tetrapeptide (Ala-Glu-Asp-Pro) modeled on the same tissue.

### Does it have a molecular formula?

No — it is a tissue extract (a polypeptide fraction), so it has no single sequence or molecular formula.

### Is Taxorest approved?

No — it is a research compound / supplement, not FDA-approved. This page is a research and educational reference.

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Source: AmericanPeptide.com — https://americanpeptide.com/catalog/taxorest
Data license: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attribution: AmericanPeptide.com.
Research reference only — computational and educational content, not medical advice.