NPC Health MSM Supplement for Horses and Dogs
- Regular price
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$28.00 - Regular price
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- Sale price
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$28.00
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MSM supplement for horses and dogs to help reduce inflammation in muscles and joints. Supports joint health, cartilage, connective tissue, skin, coat and hoof quality. MSM provides a natural antioxidant for healthy movement and maintaining health in both horses and dogs.
Nil swab for competition horses under FEI rules 2024.
This MSM supplement for horses and dogs offers an ultra-pure source of bioavailable, organic sulphur. MSM in a highly pure form offers a naturally occurring source of sulphur to support healthy muscles, joints and connective tissues of all horses and dogs.
Why sulphur is important
In nature, soil microorganisms convert sulphur compounds into sulphates which plants absorb to manufacture sulphur essential amino acids such as methionine, cystine and cysteine.
These sulphur bonds are found in connective tissues which provide structure and strength and are essential for healthy hooves, hair, as well as tendons and ligaments.
How dose MSM work in the body and what are the benefits?
MSM benefits the body by lending sulphur to complete numerous (some 300) internal chemical reactions in order to naturally support health where it has been proven to help with inflammatory conditions. Therefore, is useful to reduce joint inflammation associated with trauma, injury or degeneration (osteoarthritis). Animals such as dogs and horses where joints have become stiff also benefit from daily supplementation.
What is the dose of pure Methyl Sulphonyl Methane (MSM)?
Daily dose for horses of 500 Kg bodyweight:
- 6-12 grams for ease of movement or for other minor inflammatory conditions
- 20 grams may be used for inflammation, but as a short-term measure before the dose is decreased
Daily dose for dogs of 25 Kg bodyweight:
- 1 – 3 pinches mixed with food, high dose 6 pinches.
Pack Sizes & Daily Cost (based on a 500kg horse):
- 250g: 28 days supply at $1.00 per day
- 1kg: 111 days supply at $0.50 per day
- 1.5kg: 167 days supply at $0.45 per day
- 3kg: 333 days supply at $0.41 per day
What is the MSM dose for horses with arthritis?
Clinical studies show a higher dose of up to 20 grams (per 500 Kg) administered to horses improved lameness scores and also showed no change in blood chemistry. However, this later dose would be recommended as a short-term measure only, due to MSM being a nutrient and where no nutrient should be used excessively in the diet. But at the recommended dose MSM can improve healthy function and support muscle and joint health by helping to also reduce inflammation.
Should I use MSM and Glucosamine together?
MSM and Glucosamine provide further benefits when combined to provide the nutritional blocks for healthy joint cartilage and synovial fluids, together having a synergistic effect for maintaining healthy function and reduce inflammation.
Shipping Info
Shipping & Pickup Information
Flat Rate Shipping via Post Haste (Excludes Feed):
- North Island: $10 (1-2 working days)
- South Island: $20 (2-3 working days)
- Rural Surcharge: +$6 (extra time may apply)
Feed Shipping per bag via Post Haste:
- Central North Island: $14 Per Bag
- Upper North Island: $18 Per Bag
- Lower North Island: $28 Per Bag
- South Island: $55 Per Bag
- Rural Surcharge: +$6 (extra time may apply)
Orders placed before 1 PM are usually shipped the same day.
Pick-up Info
Click & Collect - Tauranga Store
Free 24/7 pickup from our secure after-hours collection box. Email us if you’d like to collect after hours and we’ll send you the instructions.
Try Before You Buy - No Obligation
We keep limited stock in-store, so order online to secure the items you want to try.
At checkout, choose Click & Collect as your delivery method, then Cash on Delivery (COD) as your payment method. You won’t pay anything online.
We’ll bring your items into the store and let you know when they’re ready. Try them on or check them over in person. If they’re not right, leave them with us. No problem at all. If you keep them, pay in store when you pick up.
Excludes saddles.
Returns & Exchanges
No problem! We offer 30-day returns and exchanges on items in new, resalable condition with original packaging. Returns are issued a full store credit, or a refund less a 10% processing & restocking fee. See our full policy.
FAQ
All your questions, answered.



Not sure what rug your horse needs right now? Our free Horse Rug Forecaster checks your local weather and tells you what rug weight your horse needs today, tonight and over the next 3 days. It works anywhere in New Zealand and adjusts for clipped horses and horses that feel the cold.
The thermoneutral zone is the temperature range where the body can maintain its core temperature with little to no extra energy expenditure. Humans need it much warmer, at around 25–30 °C, but for horses it’s much broader at 5–25 °C.
This difference means we should avoid rugging horses based on how cold we feel. Over-rugging can lead to serious health issues, including metabolic problems and thermoregulatory dysfunction.
Tips for Choosing a Winter Rug Weight
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Clipped horses may need a heavier gram fill to stay comfortable.
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Remember: horses warm themselves more easily than they cool down under a rug. If unsure, choose a lighter rug.
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Check your horse regularly to make sure they are neither too hot nor too cold.
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Consider your horse’s age and natural ability to stay warm.
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As a general guide, a healthy unclipped horse with shelter usually doesn't need a winter rug until it feels colder than about 5 °C, but always adjust for your horse’s individual needs.
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Always ensure rugs are waterproof. A wet rug is worse than no rug at all.
This is an indicative guide only. Always take into account factors such as wind chill, your horse’s age, weight, and condition. For advice based on your local forecast, try the Horse Rug Forecaster.

