Thus lipophilic substances tend to be water insoluble.

Other substances, common table salt is an example, tend to cause the body to "retain" water.

These substances tend to be highly reactive which can significantly speed up the rate of the reaction making them effective catalysts.

Like substances tend to dissolve in similar substances.

Un-like substances tend not to dissolve in un-like solvents.

In general, nutrient-like substances that dissolve in water tend to slightly decrease water's evaporation rate.

The usual textbooks are less troublingly substantive only because the substance tends to be the taken-for-granted norms.

In plant physiology, an auxetic substance will tend to increase cell growth without any cell division.

Now, unfortunately I can't answer your question about what other substances tend to be readily dissolved through the skin....I don't know.

Unfortunately, instead of relieving the stress and returning the body to a relaxed state, these substances tend to keep the body in a stressed state and cause more problems.