SmartSupplements by SmartPak are the smart choice for calming supplements and pastes for horses. The SmartCalm line offers nutrient-based, herb-free formulas with ingredients such as magnesium, tryptophan, and B vitamins to help soothe spooky, skittish horses. SmartMare Harmony is designed for moody mares while SmartTranquility is a comprehensive herbal supplement to support a balanced temperament.