The Magnesium Oxide story

In 1618 a farmer at Epsom in England attempted to give his cows water from a well. They refused to drink because of the water’s bitter taste, but the farmer noticed that the water seemed to help scratches and rashes. The fame of Epsom salts (and the role of Magnesium) spread.

Our Magnesium Oxide is found and refined in the hot dry Limpopo region of South Africa.

Magnesium Oxide

A natural horse or pet supplement containing 48% pure available Magnesium

Animals with a Magnesium deficiency might show symptoms such as muscle weakness, nervousness or tremors.

Natural horse and dog supplements - Pure range - Magnesium Oxide

Analytical constituents:

  • Ash insoluble in HCl ()
  • Magnesium ()


Daily amount:

  • Small pets [ <10kg ]: 1 small pinch
  • Average pets [ 10-20kg ]: 1/10th tsp
  • Large pets [ 20-40kg ]: 1/5th tsp (1g)
  • Giant breeds [ >40kg ]: 2/5th tsp
  • Ponies: 9 grams (15 ml)
  • Horses: 15 grams (25ml)

A 200g tub will last one large dog 200 days and one horse 13 days.

Please take care:

  • This is a nutritional product and is not intended as a substitute for veterinary products or advice.
  • Discontinue immediately at any sign of an adverse reaction.


Store in a cool, dry place. Keep tightly sealed and away from moisture and insects.

Join the discussion below … or visit us on