Now, once we modify the peptide hormone, it travels into our bloodstream or into our lymph system. And because the bloodstream consists predominantly of water and because our peptide hormone is made from peptide, that means peptide hormones are water soluble. And that means they can easily dissolve inside the bloodstream and do not actually need to use any type of carrier protein. So these peptide hormones can travel in the bloodstream by themselves. Now eventually these peptide hormones will arrive at the target cell. Now these peptide hormones are water soluble, they are not lipid soluble.