Solid Ideas Mare Magic contains pure, dried Raspberry Leaf to help influence a quiet disposition in mares and geldings. Raspberry is widely known for its benefits to mares because it is believed to temper the effects of hormonal fluctuations. It is thought to help regulate smooth muscle tone in the reproductive and gastrointestinal tracts, relaxing muscle that is in spasm and strengthening muscle that is weak. The dried leaf formula smells wonderful and horses find it very palatable. Mare Magic helps horses maintain lasting heat cycles all year round, supports healthy reproductive system on mares, and is safe for use on pregnant mares.