Coral Stress 60 caps. Coral Stress by Coral Incorporated. Coral Incorporated Coral Stress is an all-natural formulation created to relax the body and mind and reduce the effects of daily stressors. Coral Stress® contains fossilized stony coral minerals, Kava Kava root extract, vitamin B Complex, St. John's Wort and Hops, all clinically proven to support the nervous system. Fossilized stony coral minerals, specifically coral calcium, provides the most basic elements necessary for biological functions including absorption, assimilation, and action of these and other nutrients.