It mostly comes from small, early studies and personal stories
FIGURE 7 The strong role of severe oxidative stress, reduced antioxidant defenses like GSH with increased lipid peroxidation and malondialdehyde generation (213), lipid, protein and DNA oxidation with increased apoptosis and necrosis in atherosclerosis as a major cause of cardiovascular diseases and stroke, supports the use of complementary and alternative medicines, dietary supplements, and antioxidants with hardly any adverse effect, able to restore homeostasis reversing oxidative stress (214)
ESI-MS study of the mechanism of glycyl-l-histidyl-l-lysine-Cu(II) complex transport
Scientific References Khavinson, V
This page lays out what is genuinely known membrane-permeability data, the route used in the key animal studies, and the open half-life question and points you to the reconstitution and dosing references for the injectable form used in laboratory settings
Verdict at a Glance Thymosin Alpha-1 has substantially stronger evidence by international standards, with regulatory approval in 35+ countries, well-characterized molecular identity, and a defined mechanism of action