Radiance Gold Mare Formula is a unique combination of Actisaf pre and probiotics and natural antioxidants. These key ingredients together can provide support to maintain a healthy gut environment. With added Chaste Tree Berries (agnus castus). Contains saccharomyces cerevisiae, Actisaf approved digestability enhancer Provides herbs that are renowned for their soothing, calming and cleansing effect on horses PLUS electrolytes. Highly palatable added electrolytes. Manufactured in a BETA NOPS audited facility. Feed hygiene establishment GB708A0003. Agnus castus has long been used with the needs of mares and older horses in mind.