Testagen

ExperimentalKhavinson endocrine bioregulator / researchExperimental

Short peptide sold as a testicular/endocrine bioregulator. Not FDA-approved; not a testosterone secretagogue with modern RCT evidence.

Calculate Dose

For research use only.

Key Facts

CAS
1026993-38-3
Molecular Weight (MW)
447.44 g/mol
Half-life
Not established (limited public PK data; primarily research context)
Unit
mg
Administration Route
Oral or sublingual (common commercial formats); injectable research use exists by supplier
Frequency
Once daily (typical research pattern)
Last updated
8/23/2026
Targets
Testicular cells (proposed)

Overview

Short peptide sold as a testicular/endocrine bioregulator. Not FDA-approved; not a testosterone secretagogue with modern RCT evidence.

Protocol

Dosage Range
5-20 mg daily (research context; not clinically established)
Frequency
Once daily (typical research pattern)
Cycle
10-30 days common in bioregulator style protocols (research context)
Administration Route
Oral or sublingual (common commercial formats); injectable research use exists by supplier
Reconstitution Guide
If lyophilized: reconstitute with bacteriostatic water per lab SOP (research only)

Science

Mechanism of Action

Claimed to support Leydig/Sertoli protein synthesis in Khavinson-series papers. Not a substitute for labeled hypogonadism therapy.

Targets

Testicular cells (proposed)

Studies

Benefits

Historical endocrine-bioregulator category

Potential Side Effects

  • Not characterized

References

Related peptides