The main difference is in how they are used and what they are meant to support. Bladder Support is a topical blend applied over the lower stomach and navel area, directly over the bladder. It is mainly used to support bladder function, incontinence, and bladder control, and may help the bladder relax and empty more effectively.
The Kidney and Bladder Blend, on the other hand, is designed for internal use, usually 1 to 2 times a day. It is used more for kidney and bladder infections, while also supporting normal kidney and bladder function. In addition, it may help with kidney support and kidney stones.