Question 1

What is Bronchogen?

Accepted Answer

Synthetic short-chain tetrapeptide bioregulator (Ala-Glu-Asp-Leu, AEDL) from the Khavinson family of tissue-specific peptides, developed by Vladimir Khavinson and colleagues at the St. Petersburg Institute of Bioregulation and Gerontology and designed from amino-acid analysis of bronchial-mucosa peptide extracts. It is proposed to act epigenetically, penetrating cells and binding DNA to modulate tissue-specific gene expression and protein synthesis in bronchial epithelium and lung tissue. Evidence is almost entirely preclinical and from Russian-language sources; no controlled human clinical trials meeting international standards have been published. It is not FDA-approved or FDA-evaluated and is sold as a grey-market research compound. Merit Verified tracks independent COA test results for Bronchogen from multiple vendors.

Question 2

Which vendors sell Bronchogen with independent COA testing?

Accepted Answer

2 vendors in the Merit Verified directory have independent COA evidence on file for Bronchogen — 8 COAs total. COA coverage and test dates are listed on the Bronchogen page at https://meritverified.org/peptides/bronchogen.

Question 3

How do I verify the quality of Bronchogen from a vendor?

Accepted Answer

To verify Bronchogen quality, look for an independent certificate of analysis (COA) from a third-party lab — not a lab the vendor owns or pays directly. The COA should state the tested compound, lot number, purity percentage (identity and concentration), and the lab's name. Cross-reference the lot number against the vendor's current stock. Merit Verified indexes COAs for Bronchogen at https://meritverified.org/peptides/bronchogen so you can compare evidence across vendors before buying.

Question 4

What is the regulatory status of Bronchogen?

Accepted Answer

Bronchogen is classified as research-use only in the Merit Verified registry. In the United States, the FDA removed several peptides including BPC-157, TB-500, and GLP-1 analogues from the 503A compounding ingredient list in April 2026, restricting their use in compounded drugs for human administration. Vendors selling Bronchogen for research purposes are not selling it as a drug or supplement; the legal status of purchasing for personal use varies by jurisdiction. Merit Verified does not provide legal or medical advice — confirm current regulatory status with a licensed professional.

	Vendor	Price	$/mg	vs avg	Purity	COAs	Merit
🇺🇸	BioLongevity Labs via Disclosed Labs · just now	$69.97· 20mg	$3.50/mg	-4.8%	99.6%	5	96
🇺🇸	Ion Peptide ✓ verified at source · just now	$79.00· 20mg	$3.95/mg	+7.5%	99.6%	2	95
	peptidetech.is via Disclosed Labs · just now	$39.99· 20mg	$2.00/mg	-45.6%	—	—	Unscored

Bronchogen

Pricing for Bronchogen

COAs for Bronchogen

13 citations indexed for Bronchogen

Transport of Biologically Active Ultrashort Peptides Using POT and LAT Carriers

Peptides: Prospects for Use in the Treatment of COVID-19

AEDG Peptide (Epitalon) Stimulates Gene Expression and Protein Synthesis during Neurogenesis: Possible Epigenetic Mechanism

Short Exogenous Peptides Regulate Expression of CLE, KNOX1, and GRF Family Genes in Nicotiana tabacum

[ANTIINFLAMMATORY AND REGENERATIVE EFFECT OF PEPTIDE THERAPY IN THE MODEL OF OBSTRUCTIVE LUNG PATHOLOGY]

Modulating Effect of Peptide Therapy on the Morphofunctional State of Bronchial Epithelium in Rats with Obstructive Lung Pathology