What is the difference between Chonluten and Splenin?

Chonluten: Tripeptide bioregulator targeting bronchial epithelial cells; normalizes gene expression in bronchial tissue; promotes epithelial regeneration Splenin: Spleen-derived tetrapeptide bioregulator; normalizes leukocyte and platelet production; modulates splenic immune cell activity

Is Chonluten FDA approved?

Chonluten is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

Is Splenin FDA approved?

Splenin is not evaluated or approved by the FDA. It is discussed for research and educational purposes only, not as medical guidance.

How is Chonluten administered in research settings?

In research settings, Chonluten is typically administered via the oral or subcutaneous routes. PeptideBase does not provide dosing or administration instructions.

How is Splenin administered in research settings?

In research settings, Splenin is typically administered via the subcutaneous or intramuscular routes. PeptideBase does not provide dosing or administration instructions.

Home›Research›Compare›Chonluten vs Splenin

Peptide Comparison

Chonluten vs Splenin

Name: Chonluten vs Splenin — Per-mg Price Comparison
Creator: PeptideBase
License: https://peptidebase.io/terms

Both are Immune & Thymic peptides.

Chonluten

Bronchogen

RecoveryNot EvaluatedResearch Only

Half-life: Unknown

3 providers listed

Full Chonluten profile →

Splenin

Spleen peptide bioregulator

RecoveryNot EvaluatedResearch Only

Half-life: Unknown

1 providers listed

Full Splenin profile →

Bottom line

Chonluten is carried by more providers on PeptideBase (3 vs 1); otherwise the two are closely matched on the measures we track.

Quick Verdict

Chonluten

Splenin

Which One Should You Choose?

Your goal	Better option
Oral administration option	Chonluten
More provider options (3 vs 1)	Chonluten

Research summary only — not medical advice. Consult a qualified provider before making any decisions.

Side-by-Side Comparison

Chonluten

Splenin

Mechanism Family

Immune & Thymic

Half-life

Unknown

FDA Status

not evaluated

Admin Routes

oral, subcutaneous

subcutaneous, intramuscular

Availability

Research Only

Providers

3 listed

1 listed

Avail. Notes

Russian peptide bioregulator (Glu-Asp-Lys) from Khavinson Institute. Developed for lung health. No FDA approval, no NDA or IND. Not on any FDA list. Research chemical in US.

Russian peptide bioregulator from spleen (Khavinson Institute). Immunomodulatory. No FDA approval, no NDA or IND. Not on any FDA list. Research chemical in US only.

Research Evidence

Chonluten

Review · 2 key studies · most recent 2022

Splenin

Review · 2 key studies · most recent 2022

Research Citations

Chonluten

Review2022 · International Journal of Molecular Sciences

Transport of Biologically Active Ultrashort Peptides Using POT and LAT Carriers

Review2021 · Molecules

Peptide Regulation of Gene Expression: A Systematic Review

Splenin

Review2022 · International Journal of Molecular Sciences

Neuroepigenetic Mechanisms of Action of Ultrashort Peptides in Alzheimer's Disease

Review2020 · Stem Cell Reviews and Reports

Peptide Regulation of Cell Differentiation

About Chonluten

Tripeptide bioregulator targeting bronchial epithelial cells; normalizes gene expression in bronchial tissue; promotes epithelial regeneration

Research Areas

bronchial repairlung tissue regenerationrespiratory anti-inflammatory

About Splenin

Spleen-derived tetrapeptide bioregulator; normalizes leukocyte and platelet production; modulates splenic immune cell activity

Research Areas

immune restorationblood cell productionsplenic function support

Safety Profile

Information below reflects published research data only — not medical advice. Consult a qualified provider before use.

Chonluten

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

Splenin

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

Price (per mg)

Chonluten

$2.95/mg

$2.50 – $3.40 range

13 vendors

View price index →Find providers →

Splenin

Not enough vendor pricing yet.

Find Providers

Where to source these peptides

Providers offering

Chonluten

3 listed

Browse directory →

Providers offering

Splenin

1 listed

Browse directory →

PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.

More Immune & Thymic Comparisons

Browse all peptides →

Educational research tools — not medical advice.

Cite this page

Data last updated August 26, 2026

Free to reference and republish with attribution to PeptideBase. Choose a format:

PeptideBase. (2026). Chonluten vs Splenin — Per-mg Price Comparison. Retrieved September 11, 2026, from https://peptidebase.io/peptides/compare/chonluten/splenin

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