Research guides
What each compound is, what the studies measured and what is still open. Every figure carries its source. Written for the laboratory, not the clinic.
What is tirzepatide? The dual agonist and how it compares
Tirzepatide is a peptide that activates both the GIP and GLP-1 receptors. This guide covers how it works, what its trials measured and how it sits beside semaglutide, retatrutide and cagrilintide without ranking them.
21 October 2026 · 20 min read
What are peptides, and why are they so popular?
A peptide is a short chain of amino acids, and the body makes many as hormones and signals. This guide covers how they differ from proteins, how chemistry learned to make them, why interest has grown, and where research peptides sit against approved medicines.
10 October 2026 · 16 min read
Retatrutide reconstitution calculator: the arithmetic and the evidence
What reconstituting a lyophilised retatrutide vial involves: the arithmetic a reconstitution calculator performs, what bacteriostatic water and its preservative do in the formulation literature, and where retatrutide stands as an investigational compound.
14 September 2026 · 13 min read
What is retatrutide? What the trials have measured
A single peptide engineered to act on three receptors at once, funded through its trials by Eli Lilly and still investigational. What the trials in obesity, diabetes and liver fat have measured, and what they have not.
9 September 2026 · 20 min read