Epsom Salt

Epsom salt benefits horses by promoting muscle relaxation, easing inflammation and pain in muscles and hooves, acting as a laxative to relieve digestive issues, and supplementing magnesium for nerve and muscle function. It is applied topically as warm soaks or poultices for injuries and skin conditions and can be added to feed as an electrolyte or magnesium source. 
External Applications
Muscle and Joint Soreness: Warm Epsom salt soaks can be used on legs to reduce muscle tension, soreness, and inflammation, especially after strenuous exercise. 
Hoof and Leg Injuries: An Epsom salt poultice or warm soak helps to draw out infections from hoof abscesses, reduce inflammation, and soothe injuries. 
Skin Conditions: A gentle scrub with Epsom salt and water can exfoliate the skin, stimulate blood flow, and help manage dandruff. 
Wound Care: It can be used to cleanse wounds and draw out impurities, promoting healing and reducing soreness. 
Internal Applications
Laxative: The primary use for ingested Epsom salt is as a laxative, helping to relieve digestive upset and promoting gastrointestinal health. 
Electrolyte Supplementation: It can supplement magnesium and other electrolytes lost through sweating, which supports hydration and performance. 
Magnesium Deficiency: Magnesium is vital for nerve and muscle function, and a deficiency can manifest as nervousness, muscle tremors, excitability, and muscle pain.