CBD is permeable to the skin, although a heavy application is ideal to account for a somewhat low absorption rate. By applying CBD right to the skin, Topical CBD allows the Cannabinoids to be localized/ directed right to where it's needed most, which means faster and a more focused onset of effects.
Although you also Apply Transdermal CBD products to the skin, they are very different to topical ones. They actually penetrate the skin to reach the tissues beneath, where the bloodstream absorbs them and carries them to all parts of the body. this means that Transdermal CBD products do not only work as localized treatment, but throughout the body as well.