Mrs Martin’s DEFEND Pet Probiotic 500g


Do you want to improve your pet’s gut health and overall well-being? If so, you might want to consider adding bacillus subtilis to their diet. Bacillus subtilis is a breakthrough new type of pet probiotic that can help your pet in many ways.

Bacillus subtilis is a beneficial bacterium that naturally occurs in the soil and water. It can survive harsh conditions and form spores that can withstand high temperatures, acidity, and lack of oxygen. This makes it an ideal probiotic for pets, as it can easily reach the intestines and colonize the gut.

Bacillus subtilis has many advantages for pets, such as:
1. It can improve symptoms of indigestion, such as gas, bloating, and diarrhea.
2. It can restore microbial balance in the gut and prevent the growth of harmful bacteria, such as clostridia and salmonella.
3. It can reduce inflammation in the gastrointestinal tract and support the immune system.
4. It can lower lipid levels and improve metabolism, which can help prevent obesity and diabetes.

Bacillus subtilis is safe and effective for pets of all ages and sizes. It can be given as a supplement or added to food or water. It does not require refrigeration and has a long shelf life. It is also compatible with other probiotics and medications.

The current data indicate that a dietary probiotic supplement of Bacillus subtilis, reduces heat stress-induced abnormal behaviours and negative effects on skeletal health in broilers.

Bacillus subtilis is an effective alternative to antibiotics that have been used in healthy food products to promote growth and prevent disease in food-producing animals for a long time.


Registration Number V32610 Wet/Act 36 of 1947

Multistrain pet probiotic containing four strains of bacillus subtilis.

If you want to give your pet the best possible care, you should consider bacillus subtilis as part of their daily routine. It can help them feel better, look healthier, and live longer. Mrs Masrtin’s multistrain pet probiotic is a natural and powerful way to enhance your pet’s quality of life.

Our products are responsible, intelligent and safe.

Responsible because our ingredients are readily biodegradable to OECD 301 standards and we offer refills to eliminate single use plastic.

Intelligent because our detergents include indigenous, friendly microbes that produce the enzymes necessary to degrade dirt.

Safe because our products are non-toxic and approved by The Allergy Foundation of South Africa.

Our products rehabilitate grey water and are ideal for use in septic tank systems.

Free from

  • Chlorine bleach
  • Triclosan
  • EDTA
  • Phosphates
  • 2-butoxyethanol
  • Phthalates
  • Paraben
  • Ammonia
  • High VOC glycol ethers
  • Formaldehyde


Calcium Carbonate, Dextrose Monohydrate, More than 10 million CFU/ml of naturally occurring, indigenous, safe bacteria (Bacillus spp).

Directions for use

Add and mix into the animal’s drinking water, or sprinkle over food.

Dogs/Cats: 1/2 teaspoon daily

Hamsters/Rodents: 1/4 teaspoon daily

Birds/Poultry: 1 teaspoon per litre of drinking water.

Horses: 1 teaspoon for ponies, 2 teaspoons for adult horses daily

Cattle: 1/2 teaspoon for calves, 1 teaspoon for adult cattle daily

Sheep: 1/4 teaspoon for lambs, 1/2 teaspoon for adult sheep daily

Pigs: 1/2 teaspoon for piglets, 1 teaspoon for adult pigs daily

Bulk Feed: 100g per 100kg feed daily

Customer Reviews

Based on 2 reviews
Tracy Fry

This will be the 3rd time that I'm buying Defend, I buy two at a time, because I have a LOT of doglets. I love my dogs terribly and I only want to give them the best, I believe that Mrs Martin's products are the best and I will to continue to buy and promote Mrs Martins. The only problem that I have with Defend is that the lids are practically impossible to get off and on at times. I now decant the powder into a glass jar to stop me from throwing the tin against a wall. Regardless, rest assured, this product is a firm favourite in my home.

Hi Tracy, thanks for giving your dogs the best! Good news: our aluminium containers should soon be replaced by containers that are easier to open. So sorry for the frustration in the meantime! Keep your eyes peeled for the newsletter announcing the change sometime this year.

Lesley Primmer
Defend powder

Wow, I never thought the day would come with no scratching and paw chewing and licking. I have 3 miniature schnauzers and they are pron to allergies, grass, chicken, wheat always upset stomachs. The probiotic powder has change there digestive issues, there’s no more upset tummies, grass eating. There coats are silky and shiny. We have used Defend powder for 2 months now and it’s so easy, half a teaspoon in the morning over the food, no fuss. Just amazing stuff. 🐶

We are thrilled with this feedback, Lesley! May they stay healthy for years.