The Vault Journal

Research Guides

Educational guides for understanding scientific studies, terminology, evidence, and research methodology.

Editorial scientific illustration connecting molecules, cultured cells, an integrated biological system, and a human figure

Research Guides

From a Petri Dish to a Person: Why Different Levels of Evidence Matter

A result in cells can be scientifically important without telling us exactly what will happen in a person. Understanding the different levels of research helps explain why.

By The Vault Journal Editorial Team · 8–10 min read

Side-by-side photographs of the same man, showing visible change in body composition between two moments in time

Research Guides

A Before-and-After Can Show Change. Can It Tell Us What Caused It?

A real transformation provides a striking visual. But when tesamorelin is part of the story, separating observation from causation requires looking beyond the photograph.

By The Vault Journal Editorial Team · 7–9 min read