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Retatrutide is still investigational and not approved by any regulator as of April 2026, so everything below is presented as clinical-trial data, not as medical guidance

Even more intriguing are the systemic effects observed with topical application

Amid concerns of losing its first-mover advantage to competitors like Eli Lilly, the company also saw a change in leadership with the ousting of its CEO in May 2025

Cagrilintide is supplied as research-grade material with 99.9% purity and is intended strictly for laboratory research use

This makes it a strong option for advanced research into integrated biological systems and peptide interaction studies