Works well, and was looking for one with the fewest number of fillers. Also I needed Biotin at a lower dose per pill than 5000mg. These 1000mg. pills work well. Biotin serves many important functions in the body and I am not able to take a multi-vitamin so this was the best way to get it. "Biotin plays a key role in the body. It supports the health of the skin, nerves, digestive tract, metabolism, and cells. Biotin may also help to treat some types of nerve pathology, such as the peripheral neuropathy that can result from kidney failure or diabetes." (from Web MD) Read more