BioThymus is the BioLongevity Labs product name for Khavinson cytomax complex A-6 (thymus peptides) (trade name Vladonix), the thymus-designated member of the natural peptide-bioregulator series. The vendor describes the active material as a natural peptide complex derived from thymus tissue of young animals (calves under 12 months or pigs), made up of low-molecular-weight peptide fractions of up to 5000 Da. It is an undefined tissue-extract mixture, not a single characterized molecule: no defined amino-acid sequence and no CAS number exist for it, and composition can vary by batch. It is distinct from the synthetic short peptides (cytogens) developed within the same research program.
Vendor product information identifies the material as “Peptide complex A-6 (thymus peptides)” and places the product in the “Natural Peptides Combinations (Cytomaxes)” line. The cytomax program originates in the Khavinson bioregulator research lineage of the St. Petersburg Institute of Bioregulation and Gerontology. This page lists the material for research-use-only reference; it carries no medical claims, efficacy statements, or dosing guidance, and vendor marketing claims about physiological effects are not reproduced or endorsed here.