Io Sulphur



iO Yellow Sulphur is a very important macro mineral to horse health. Can also be used as an insect repellent in horses. iO Yellow Sulphur is known to relieve equine cold symptoms. iO Yellow Sulfur is necessary for amino acids, B vitamins, insulin, and chondroitin sulfate in your horse. It is a bright yellow powder obtained from naturally-occurring volcanic brimstone deposits.

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