Skip to content

The library now covers 173 peptides. Browse it

Library · Immune · Immune system regulation and enhancement

Thymalin

Timalin, Thymalinum, Thymus Factor

A Russian-developed polypeptide complex from thymus tissue, valued for immune-modulating effects that balance T- and B-lymphocyte ratios and boost cellular immunity. Used clinically in Eastern Europe for immune deficiencies and infections, and studied recently as an adjunct for severe COVID-19.

Research score 60/100. Reference only, not a dose.

  • Immune Boosting
  • Anti-inflammatory
  • Anti-viral
  • Anti-bacterial
  • Hormone Regulation
US status
Research Chemical
Approval
Approved in Some Countries
Evidence
Used in Russia/Eastern Europe for decades. Recent studies for COVID-19 adjunct therapy.
Research score
60 / 100
Indication
Immune Deficiency
Origin
Russia
Source category
Immune System
Status group
Research chemical

Mechanism

Promotes T-lymphocyte maturation in the thymus and peripheral tissue, raises thymic hormone output, and modulates cytokines like IL-2 and IFN-γ; helps normalize T-helper/T-suppressor ratios, boosts NK-cell activity, and shows anti-inflammatory effects via JAK/STAT regulation.

Safety file

Good safety profile in available studies; minimal side effects such as localized redness.

  • Local injection site reactions
  • Temporary fever
  • Allergic reactions
  • Fatigue