A review summarizes similar effects across mice and cashmere goats (Dai et al., 2021, DOI), and one study tested thymic peptides on cultured human hair follicles (Meier et al., 2012, DOI)
doi: 10.1093/humupd/dmz034 15 TrinchantRGarca-VelascoJ
I know the product worked because of the changes I felt
Gonzlez-Gualda E, Reinius MA, Macias D, Morsli S, Ge J, Olan I, Martn JE, Ou HL, Hartono M, Puerto-Camacho MP, Denholm M (2026) Treatment resistance to platinum-based chemotherapy in lung and ovarian cancer is driven by a targetable TGF senescent secretome
less than 1 percent of patients report dizziness, headache, or hyperactivity
Monaldi Arch Chest Dis