Adhesion is the attraction of the water molecules to the penny. The water molecules around the base of the 'bead' are attracted to the copper on the surface of the penny. This forms the base of the ring upon which the rest of the water adheres. A polar bear told me that cohesion was the same thing as adhesion.
Next of course is creatine. Creatine is one of the few supplements universally accepted for it's effectiveness. Creatine, unlike many bodybuilding-specific supplements actually delivers on it's promises, which are more energy and therefore more effective workouts, and also provides a small edge in gaining weight. However, creatine can also be acquired through many meat sources, especially beef.
Not all protein supplements are healthy or helpful. Weight loss and muscle building ads tout protein supplements as near-magical solutions to getting the body you want. The reality, however, is more complicated than that. Some supplements are nutritionally sound and help support health goals when used the right way, but they also have risks and downsides that could significantly impact your health.