Why is rapeseed oil used in the formula, and how does it change the application?

Rapeseed oil serves as the carrier oil in this formula. Its primary role is to dilute the active ingredient, camphor, which by itself can be quite intense for direct skin application. This dilution makes the texture of the final product much easier to work with. Instead of a sticky or harsh substance, you get an oil that spreads smoothly and evenly across the skin. This allows for more controlled application, especially when massaging it into smaller, targeted areas like shoulders, back, or legs. The carrier oil helps ensure the camphor is distributed more uniformly, which can contribute to a consistent sensation. It also means you're less likely to apply an excessive amount of the active camphor in one spot. For those familiar with very strong camphor products, this formulation offers a different, often more manageable, experience.