Cell salts are mineral compounds that occur in our cells. Every cell in our body contains countless minerals, each with its own function. The cell salts that you can take via tablets, for example, contain exactly these mineral compounds; active ingredients for the cell.
The tablets contain charged mineral salts. These can be directly absorbed by the body. Just let the tablets melt in your mouth, or dissolve them in water - which is my personal preference.
The minerals from the cell salts help the cells to achieve balance. For example, they support the permeability of the cell wall, allowing oxygen to enter the cell and waste products to be properly removed. With a low but powerful content of the body's own minerals, they help to better absorb the minerals found in your diet and bloodstream.