Marukyu Credence Corn is a highly visible artificial gel corn with a specific gravity slightly higher than water. It is made from amino acids and exclusive Marukyu attractants, which, thanks to the latest techniques applied to amino acids, have created a biodegradable bait (degradation time depends on environmental conditions and water temperature) that is 100% fish-friendly! Credence Corn is indeed vulnerable to bacteria and sunlight. Its unique texture makes it virtually immune to disturbance by fish.