NO ONE SIZE FITS ALL
Backed by Science | Designed by Vets | Happy, Healthy Dogs
Specially formulated using patented BIO-tract® technology, OZLOO supplements come in two sizes to ensure your dog gets exactly the dose they need.







Our Products
All our products are specially formulated in two sizes: Small/Medium breed for dogs weighing less than 50 lbs/22.5 kg and Large breed for dogs over 50 lbs/22.5 kg

OZLOO Digestive Health
Vet formulated chewable sphere containing a high quality double-strain probiotic combination plus prebiotic with vitamins to help maintain proper gut flora, thereby supporting a healthy gut, intestinal health, normal flatulence, & a healthy immune system.

OZLOO Multi-Immunity

OZLOO Hip & Joint Support
We’ve perfected the balance between science and love
What makes OZLOO the right choice for your dog?

No one-size-fits-all
As a team of passionate pet lovers, we‘ve taken a more personalised approach towards your dog’s health, because a more individualised formula based on breed size is very important for their overall wellbeing. Using decades of pet nutrition research (and a little common sense), our founder worked with top veternarians to create the range of OZLOO dog supplements .


Correct dosage
- We use your dog’s weight to make sure it receives the correct dosage.
- If you dog’s weight is greater than 50 lbs/22.5 kg you need OZLOO for Large breeds and if your dog’s weight is less than 50 lbs/22.5 kg you need OZLOO for Small/Medium Breeds.

Veterinary formulated
- Exact formulation of supplements was designed by veterinary doctors
- Patented Bio-tract® protection and time-release technology ensures that the active ingredients are able to pass through the harsh stomach environment and can colonize in a dog’s small and large intestine, where they’re needed most, and are released slowly over an 8-10 hour period. The Patented BIO-tract® delivery technology consistently delivers as many as 15 times, or more, the number of live, viable probiotic organisms compared to plain/standard capsules. (as repeatedly demonstrated through in vitro lab testing)
Find out more about the science behind our products:

Made in the USA
OZLOO chewable tablets are made and sourced from the USA according to good manufacturing practice (GMP) thereby ensuring that the product is consistently produced and controlled according to the highest quality standards.

Once a day
- One chewable tablet ONCE a day
- Pork flavoured which dogs love
- Easy, simple and convenient to use.
- Free of gluten, artificial colours, artificial flavours and preservatives, and they’re non-GMO.
The Science Behind OZLOO
All our supplements are vet formulated using BIO-tract® patented technology.
From taste, to efficacy and absorption, we’ve used science and technology to ensure the best possible outcome for your dog’s health.
First time owning a puppy?
The first four months of a puppy’s life are critical, as this is when the main growth and development happens.
Your puppy will go through many stages on their road to adulthood – just like a human baby does, and from eight to nine months, the main growth for larger breeds occurs in the skeleton and organs. Giving your puppy the best during this first 600 days (or approx. 60 days gestation + 18 months puppyhood) is essential, so set them up to have a healthy immune and digestive system from the word go.

Happy dogs, happy owners

The best probiotic ever!
By SimonV on May 24, 2021
We’ve ordered OZLOO for our beloved Jasmine (Shetland Sheepdog) few weeks ago and this was the best choice we’ve ever made. Acceptance, taste and overall health impact in days – shine fur, poop consistency and frequency much better. Also, great sustainable packaging. We’re Veterinarians by practice and always we select the best in class for our 4 paws daughter. Congrats OZLOO Team. Looking for more to come in your pipeline.

OZLOO saved my dog’s life
By Fufy on May 31, 2021
I was hesitant to put my dog on probiotic. However, my vet recommended me OZLOO saying it contains the right strains (Lactobacillus Plantarum and Lactobacillus Casei) for my puppy. I took her advice and gave OZLOO to Fufy which after 2 weeks, literally saved my dog’s life. She has returned to a happy, alert, frisky dog after suffering for months with chronic diarrhea and digestive problems. Thank heavens we got a new vet and LISTENED to her. And thank heavens for a company like Chewy to have OZLOO !

Excellent product with great results!
By TomB on May 17, 2021
OZLOO works wonders for my dog Snickers! It’s so easy and simple with only having to give him one dose a day and I love the fact that it’s safe and healthy for him! Definitely recommend this great product to all dog lovers

It's so easy to take
By Grace on May 11, 2021
This Probiotic product is specially made for Large breed dogs – I appreciate the fact that my Great Dane is getting more personalised support and this is what attracted me to this product AND it works!

Very Impressed With results
By ArchieBulldog on May 14, 2021
We have been very impressed with how OZLOO has worked for Archie, our English Bulldog, with regards to how it has calmed down his tummy and gassiness. It’s now far more pleasant to have him sitting by our feet as we relax and watch TV!!!!!! Thanks OZLOO.