Isn't it the cell membrane? The cell membrane controls what goes in and out of the cell using active and passive transport. Osmosis being a part of passive transport.
The correct answer to this open question is the following.
Although there are no options attached we can comment on the following.
I might modify the formula so that it will more easily dissolve in water in the following way. I would ask my scientist in the laboratory to modify the formula. To make the formula more soluble when it makes contact with water, the addition of polar hydrophilic side groups to the molecule will help the formula to be soluble.
That is why it is very important to do focus groups to taste the product before launching it commercially and send the product to the stands of supermarkets, pharmacies, or grocery stores. If it is not previously tasted, you could encounter many difficulties. Furthermore, the FDA requires the best quality of the product so you have to make sure it works as it says in your advertisement.
