For detailed information on current and future availability worldwide, see our retatrutide availability by country guide
TB500 has been evaluated for its potential effects on actin dynamics and cellular migration in animal models, but all published clinical research has used the full 43-amino-acid thymosin beta-4, not the TB500 fragment
For example, people with a history of heavy drinking who took semaglutide (the active ingredient in Ozempic and Wegovy) reported fewer alcohol cravings, drank less when they did drink and had fewer heavy drinking episodes than those who took a placebo, according to a 2025 double-blind, randomized clinical trial published in JAMA Psychiatry
They have been extensively studied and used worldwide
For restaurants, caterers, bakeries, and food service businesses, understanding these changes is becoming increasingly important
Single-receptor and dual-receptor peptide systems have already shaped the scientific understanding of incretin signaling