Frank and Jellys

Four Leaf Rover Saccharomyces boulardii

Saccharomyces boulardii – Healthy, probiotic yeast.

Yeast-based probiotics are unique because they’re not harmed by antibiotics, like other probiotics are and studies  show can help ease digestive upset during antibiotic use. This makes it the choice for dogs who have had antibiotics or other medicines that harm gut bacteria.

This friendly yeast helps maintain a healthy gut lining and studies show can influence parts of the immune system that maintain proper gut permeability and also stays in the gut for 3-5 days, which is much longer than most probiotics.

Some benefits include:

  • Natural probiotic
  • Vet formulated
  • No fillers
  • Not harmed by antibiotics
  • Reduce unhealthy yeast
  • Maintain proper gut permeability
  • GMO free


Out of stock

Size: 46.7g

Directions For Use: (body weight amount per day)

  • 1 – 25 lbs ……… 1/8 tsp daily
  • 26 – 50 lbs …… 1/4 tsp daily
  • 51 – 75 lbs ……..1/2 tsp daily
  • 76 – 100 lbs ….  3/4 tsp daily
  • 100+ lbs ……..   1 tsp daily
Please be aware that there is no measuring spoon provided with this product

IngredientsSaccharomyces boulardii  (10 Billion CFU)  Organic Inulin from Jerusalem artichoke (1056 mg)

Customer Reviews
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jill h.
I recommend this product

Saccharomyces boulardii Fantastic!

This product has hopefully been the difference we needed when we needed it. We bought it to undo the potential problems GAs can cause on gut health, along with a course of antibiotics that followed too. My dogs usual diarrhoea with antibiotics didn’t happen, and hopefully the feeding of this has helped undo any GA impacts. I have noticed a huge difference in coat condition since feeding this, which I absolutely attribute to Saccharomyces boulardii. Can highly recommended.

All orders placed before 12:00 Monday – Friday (exc Bank Holidays) will aim to be dispatched the same day.

During busy periods such as sale periods the dispatch time may be slightly delayed.

For UK Mainland Orders 0-2kg we use Royal Mail as our delivery partner.

Delivery Options Available

Standard 2-4 Working Days (Non-Tracked): £5.60

Royal Mail Tracked Service (exp 2-3 days after dispatch): £6.60

RM24 – Royal Mail 24 Hour Tracked: £10.50

Orders over £75 will receive RM 48 hour free-shipping.

All international orders are priced on weight and will be quoted at the checkout. For more information about taxes, duty and other applicable customs information, please read our terms and conditions prior to purchase.

Royal Mail delivery time scales are guidelines and reasonable endeavours. During peak periods these may experience delays however Royal Mail will not refund shipping costs due to delayed deliveries.

Please note that Nikki’s Nesties products are handmade to order and can take up to 14 days to arrive from point of order and will be sent separately from all other items as part of the same order.

Orders which include items labelled on their description as “temporarily out of stock” or on backorder will be dispatched once all items are back in stock.

Any questions on out of stock items please email customerservices@frankandjellys.com

Please note: Strict EU guidelines, governed in the UK by the Veterinary Medicines Directorate, restrict the use of words and information that may portray a product as a registered medicine. In order to comply with these regulations, a number of our customer reviews have had certain words removed.