Bronchogen
Taken for lung support
Khavinson bioregulator
Match every finding to its exact substance, formulation, route and study population. A related molecule or approved medicine does not validate a catalog vial.
Color key
At a glance
Why people take it. And what backs it up.
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Support lungs and airways
People report it, not studied
Sold as a Russian lung ‘bioregulator’ and taken in month-long courses to support breathing, including after smoking or chest infections.
Sources (5)
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VendorCosmicNootropic (vendor): Bronchogen (bronchi peptides) (opens in a new tab)
“Buy Bronchogen peptides for lung health and easy breathing.”
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Vendore-peptide.com (vendor): Bronchogen label directions (opens in a new tab)
“Adults: 2 capsules once or twice a day, before meal, during 1 month.”
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ForumReddit r/Peptides: comment in “Bronchogen dosage” (January 2023) (opens in a new tab)
“I’ve been injecting Bronchogen at 2 mg daily from PS. It’s been incredible for my lungs better than GHK-CU or Chonluten.”
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Vendore-peptide.com (vendor): Bronchogen (opens in a new tab)
“Restoring lung function after smoking and treatment for shortness of breath and bronchial spasms.”
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“Whether you’re recovering from an infection or managing chronic exposure to airborne toxins, Bronchogen helps reset the inflammatory baseline and accelerates lung recovery from the inside out.”
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Ease bronchitis or COPD
Animal studies only
Some with chronic bronchitis, emphysema, COPD or asthma try it hoping to breathe easier.
Sources (4)
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Vendore-peptide.com (vendor): Bronchogen (opens in a new tab)
“Peptide complex Bronchogen for the broncho-pulmonary system is used treating acute and chronic bronchitis, chronic obstructive pulmonary disease (COPD).”
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“Results of 20 day testing of Bronchogen therapy for mild emphysema”
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ForumReddit r/Peptides: “My Bronchogen Results” (February 2024) (opens in a new tab)
“Subject has been diagnosed with Exercise Induced Asthma (EIB) with a Peak Expiratory Flow (PEF) rating of under 500 L/min.”
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“Administration of tetrapeptide Bronchogen for 1 month eliminates symptoms of remodeling of the bronchial epithelium and lung tissue typical of chronic obstructive pulmonary disease”
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Evidence briefing
Sources checkedWhat the sources support.
Bronchogen is the tetrapeptide Ala-Glu-Asp-Leu in the Khavinson peptide-bioregulator program. A PubMed-indexed study tested it in rats with experimentally induced obstructive lung pathology and reported tissue changes; this does not demonstrate treatment of human COPD. It is not an approved drug, and no human clinical outcome evidence was identified.
The lung evidence is an induced rat model from the developer research network; disease-model findings cannot establish a benefit or safe route in people.
The research. What’s been studied.
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Animal & lab studies
Rat lung-model research
A rat study reported changes in bronchial epithelium after experimental lung injury; this does not establish repair of human airways or treatment of COPD.
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Unverified
Mucus-clearance claim
Support for airway mucus clearance is a proposed or marketed claim, not a demonstrated human clinical benefit.
What do these labels mean?
- Human evidence: approved-drug data or larger human studies, within the populations and uses studied.
- Early human studies: small, preliminary or limited human studies.
- Animal & lab studies: animal or laboratory findings that do not establish effects in people.
- Unverified: a proposed use or claim without verified supporting clinical evidence.
How each claim was reviewed (2)
Reported effects and evidence.
A citation may support, qualify or correct a claim. Read the study scope; a laboratory result is not an established benefit in people. Each review covers a claim as it was first collected; the tiles above show the collection’s current wording.
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Preclinical rat lung-injury experiments
Review of “Airway repair”
Bronchogen affected bronchial-remodeling/inflammation measures in rat nitrogen-dioxide-exposure models.
Limitations and applicability. Correct preclinical scope; specify nitrogen-dioxide-exposure injury model and developer-associated research.
Original collected claim and review history
Original title: Airway repair
Studied in rat models of lung injury by the developer’s group.
Original label: animal. Preserved for traceability; the reviewed wording above qualifies this record.
Record bronchogen:benefit:1 · Annotated 2026-10-01 · Review method
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Preclinical histology; mucus-clearance inference
Review of “Mucus clearance”
Rat studies described epithelial/ciliated-cell changes; a human mucus-clearance benefit is unestablished.
Limitations and applicability. Restored ciliated-cell histology is not direct evidence of improved mucus clearance in humans.
Original collected claim and review history
Original title: Mucus clearance
Claimed to support the cells lining the airways.
Original label: claimed. Preserved for traceability; the reviewed wording above qualifies this record.
Record bronchogen:benefit:2 · Annotated 2026-10-01 · Review method
The research in detail
Evidence category
Mostly animal and cell studies
A study reported bronchial tissue changes in rats with experimentally induced obstructive lung pathology. This does not demonstrate treatment of human COPD or establish a safe clinical route. No controlled human outcome evidence was identified.
Evidence is assessed claim by claim above. Regulatory approval, study design, findings and relevance are separate questions; there is no single evidence score.
Risks and unknowns. What to know first.
Collected cautions follow. These are not an exhaustive or independently validated safety assessment; claim references do not automatically support every caution.
- Unknown.
What people report
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User reports
Flushing and a short rise in heart rate (to about 106 beats a minute for 3 minutes) right after 500 mcg injections (one user).
Source: Reddit r/Peptides, “My Bronchogen Results” comments (opens in a new tab)
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User reports
After a 20-day course, one user’s CT scan showed new bronchial wall thickening; she wondered whether Bronchogen could matter for people with chronic bronchitis or asthma (link unknown).
Source: Reddit r/Peptides, emphysema self-test thread (opens in a new tab)
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Study
The evidence is from Russian rat studies (for example, a month of Bronchogen in rats with lung disease caused by nitrogen dioxide); no controlled human trials were found.
Source: Bull Exp Biol Med 2015 (rat obstructive lung model), PubMed 26468022 (opens in a new tab)
Published dosing records. No established dose.
Historical label and trial records for the named product, route, population and indication. These records are not a personal schedule or a validated regimen for a catalog vial. Source attribution does not establish applicability.
Bronchogen (the peptide Ala-Glu-Asp-Leu) has only been tested in lab cell cultures and in rats with lab-induced lung damage. PubMed and ClinicalTrials.gov list no human trial, and no drug regulator has approved it.
Any dose you see online for it is a guess, not a tested dose.
Community protocols. Reported online. Not clinically validated.
Community reports Collection date: 30 Sep 2026Two forms circulate: oral capsules sold as a Russian supplement, taken as 1–2 capsules once or twice a day for 20–30 days and repeated every 4–6 months, and 20 mg research vials injected under the skin at about 500 mcg–1 mg a day for 20–40 days.
More about this
Community data are thin: a handful of Reddit self-experiments, and one of them was later repackaged as an influencer’s protocol.
Oral capsules (label directions)
Collected report · exact form and route are only as reported below. Source date and reporter identity are not separately verified. Collection checked 30 Sep 2026; presentation annotated 2026-10-01.
- Vendor: e-peptide.com (vendor), Bronchogen label directions
- Vendor: CosmicNootropic (vendor), Bronchogen directions
- Practitioner: Jay Campbell (author and peptide educator), Bronchogen article
- Forum: Reddit r/Peptides, “How to use Bronchogen?” (2023)
Frequency labels describe this collection, not a measured population. Contradictory records remain available.
Details and sourcesHide details
- Dose
- 1–2 capsules (the peptide amount per capsule is not stated on the labels seen; one forum user estimated about 2.5 mg)
- How often
- Once or twice a day
- Route
- Oral (capsules)
- Timing
- With or before meals (labels differ)
- How long
- 20–30 days (some labels say 1 month)
- Cycle
- Repeat after 3–6 or 4–6 months
- Sold in 60-capsule packs as a Russian dietary supplement in the Khavinson “cytogen” product line.
- One seller’s label suggests following the course with a natural bronchial peptide complex (Taxorest).
- Sellers’ ingredient lists differ slightly (one lists leucine, another arginine).
Sources (4)
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Vendore-peptide.com (vendor), Bronchogen label directions (opens in a new tab)
“Adults: 2 capsules once or twice a day, before meal, during 1 month. After 3-6 months it is advisable to repeat the course to achieve the best results.”
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VendorCosmicNootropic (vendor), Bronchogen directions (opens in a new tab)
“Adults: 1-2 capsules, 1-2 times per day. Duration of intake: 20-30 days. A repeat course is recommended after 4-6 months.”
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PractitionerJay Campbell (author and peptide educator), Bronchogen article (opens in a new tab)
“Take 1–2 capsules, once or twice daily, with food.”
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ForumReddit r/Peptides, “How to use Bronchogen?” (2023) (opens in a new tab)
“original bronchogen from Khavinson is 1-2 capsules daily. One capsule is approximately 2,5MG. Cycle lenght is month. And then 3-6 month pause and one more cycle.”
Injection from research vials
Collected report · exact form and route are only as reported below. Source date and reporter identity are not separately verified. Collection checked 30 Sep 2026; presentation annotated 2026-10-01.
- Forum: Reddit r/Peptides, “Bronchogen timing” (2023)
- Forum: Reddit r/Peptides, “Results of 20 day testing of Bronchogen therapy for mild emphysema” (2024)
- Practitioner: Jay Campbell (author and peptide educator), Bronchogen article
- Forum: Reddit r/Peptides, “Bronchogen dosage” (2023)
Frequency labels describe this collection, not a measured population. Contradictory records remain available.
Details and sourcesHide details
- Dose
- 500 mcg–1 mg a day (a few use 2 mg)
- How often
- Once a day; one version runs 6 days on, 1 day off
- Route
- Injection under the skin (belly or buttock)
- Timing
- Often in the evening, about 2 hours after the last meal; some inject on an empty stomach
- How long
- 20–40 days (the “advanced” version runs 7 weeks)
- Cycle
- About a month off between courses in one report; label-style 3–6 month breaks are also cited
- Ramp
- Some start at 250–500 mcg and move up to 1 mg
- Mixing
- 20 mg vial + 3 mL bacteriostatic water: 1 mg = 0.15 mL (15 units); 500 mcg = 7.5 units
- Jay Campbell’s “beginner” (500 mcg a day for 40 days, evening) and “advanced” (1,000 mcg a day, 6 days on and 1 off, for 7 weeks) protocols match one Reddit user’s 2023–2024 self-experiment almost exactly.
- Jay Campbell also describes a ready-made pen at 2 mg a day (10 doses per pen).
- Users who self-tested with home spirometers reported modest, uncontrolled changes.
Sources (4)
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ForumReddit r/Peptides, “Bronchogen timing” (2023) (opens in a new tab)
“Going to do 500mcg/day for 40 days (using a 20mg vial).”
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“Normal sterile procedures were used to inject 0.15mL of solution (1000ug of Bronchogen peptide) into the subcutaneous fat over the right gluteus medius.”
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PractitionerJay Campbell (author and peptide educator), Bronchogen article (opens in a new tab)
“Start with 500 mcg per day, injected subcutaneously in the abdomen. Best taken in the evening, about two hours after your last meal. Stick with it daily for 40 days”
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ForumReddit r/Peptides, “Bronchogen dosage” (2023) (opens in a new tab)
“I’ve been injecting Bronchogen at 2 mg daily from PS.”
Show all 3 protocolsShow fewer protocols
Low-dose “maintenance” (vendor owner’s rule of thumb)
Collected report · exact form and route are only as reported below. Source date and reporter identity are not separately verified. Collection checked 30 Sep 2026; presentation annotated 2026-10-01.
- Forum: Reddit r/Peptides, “Bronchogen 20mg” (2023)
- Forum: Reddit r/Peptides, same thread
- Forum: Reddit r/Peptides, same thread
Frequency labels describe this collection, not a measured population. Contradictory records remain available.
Details and sourcesHide details
- Dose
- 100 mcg a day for maintenance; 0.5 mg (some say 0.5–1 mg) a day for a “diseased organ”
- How often
- Once a day
- Route
- Injection under the skin (research vials)
- How long
- 40–60 days for the 0.5 mg version
- Attributed on Reddit to Jean-François Tremblay, owner of the Canadian peptide seller CanLab, as a general rule for all short bioregulators, not Bronchogen specifically.
Sources (3)
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ForumReddit r/Peptides, “Bronchogen 20mg” (2023) (opens in a new tab)
“100 mcg per day for short-peptide bioregulators is enough for maintenance. If you are suffering from a diseased organ then take 0.5 mg a day for a while (40-60 days)”
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ForumReddit r/Peptides, same thread (opens in a new tab)
“.5mg to 1mg per day, as per Jean-Francois Tremblay of CanLab”
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ForumReddit r/Peptides, same thread (opens in a new tab)
“0.5 mg a day for 40 days, 100 mcg a day would also work.”
Where the numbers come from
The capsule directions are the Russian manufacturers’ label directions (Khavinson “cytogen” line, sold as supplements). Injectable doses have no published basis: forum users derived them from a vendor owner’s rule of thumb for all bioregulators (100 mcg maintenance, 0.5 mg for 40–60 days) and from one Reddit user’s 500 mcg-then-1 mg self-experiment, which an influencer (Jay Campbell) then published as his protocol.
Research notes
Thin data: fewer than ten Reddit threads, mostly single-user reports. Capsule labels do not state how much peptide each capsule holds, so capsule and injection doses cannot be compared. Jay Campbell’s published protocol appears to be copied from one Reddit user’s experiment. Sellers’ ingredient lists differ (leucine vs arginine). No regulator statements specific to Bronchogen were found.
What it is. In plain English.
A bioregulator peptide marketed for lung and airway health.
Ala-Glu-Asp-Leu, from the same St. Petersburg bioregulator program as Epitalon and Cartalax.
Claimed to regulate gene activity in the cells lining the airways, supporting mucus clearance and repair.
Reviewed 2026-10-01.
Structure. Nothing to show yet.
No experimental 3D structure of Bronchogen is in the .
No chain in the Protein Data Bank consists of its four amino acids, Ala-Glu-Asp-Leu.
Checked 30 Sep 2026.
Specs. The facts at a glance.
- Length
- 4 amino acids
- Sequence
- AEDL
- Sold as
- Bronchogen 10 mg
- Regulatory status
- Not approved. .
- Also known as
- Khavinson bioregulator
Sources. What this page rests on.
Every source behind this page, with what it says and when it was checked, is in the Source library.
Bronchogen in the Source library
Original overview and research notes · annotated 2026-10-01
Historical collection text. Read alongside the claim corrections above; identity or evidence qualifications may supersede this wording.
Lung and airway support (claimed)
A bioregulator peptide marketed for lung and airway health.
Ala-Glu-Asp-Leu, from the same St. Petersburg bioregulator program as Epitalon and Cartalax.
Claimed to regulate gene activity in the cells lining the airways, supporting mucus clearance and repair.
Animal and cell studies from the developer’s group, including rat models of lung injury. No independent human trials.
Original status record: Not approved. Research chemical.