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Natural Factors, Ultimate Probiotic, 12/12 Formula, 120 Vegetarian Capsules

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Natural Factors, Ultimate Probiotic, 12/12 Formula, 120 Vegetarian Capsules

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Natural Factors, Ultimate Probiotic, 12/12 Formula, 120 Vegetarian Capsules

In Stock
120 Vegetarian Capsules
60 Vegetarian Capsules
120 Vegetarian Capsules
  • Expiration Date: 02/2019
  • Shipping Weight:
    0.94 lbs
    Switch to Metric units
  • Product Code: NFS-01848
  • UPC Code: 068958018485
  • Package Quantity: 120 Vegetarian Capsules
  • Dimensions:
    2.8 x 2.8 x 4.8 in, 0.25 lbs
    Switch to Metric units
  • ** This product is kept refrigerated to preserve its freshness.

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Product Overview


  • Dietary Supplement12 Billion‡
  • 12 Strain Formula
  • Intestinal & Digestive Health
  • Isura – Non-GMO * Mass Spec
  • Documentation – Lab Tested
  • Purity & Potency Guaranteed

12/12 Ultimate Probiotic provides 12 proprietary strains with a potent concentration of 12 billion active cells that work synergistically, guaranteeing maximum activity and efficacy.

Recommended by Dr. Michael Murray, one of the world’s leading experts on natural medicine.

Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.

‡Guaranteed minimum 12 billion active cells per capsule at expiry date.

‡Guaranteed minimum 18 billion active cells per capsule at manufacture date.

Suggested Use

1 capsule 3 times per day or as directed by a health professional. For best results, take with a meal.

For maximum potency, refrigerate.

Other Ingredients

Maltodextrin, FOS (fructooligosaccharides), inulin, vegetarian capsule (carbohydrate gum [cellulose], purified water), magnesium stearate (vegetable grade), silica, ascorbic acid.

Contains milk and soy.

Contains no artificial colors, preservatives, or sweeteners; no wheat, gluten, egg, fish, shellfish, salt, tree nuts, or GMOs. Suitable for vegetarians.


Keep out of reach of children.

Sealed for your protection. Do not use if seal is broken. For freshness, store in a cool, dry place.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving %DV
Proprietary Synergistic Blend:
Total Active Cell Count
12 billion **†
Lactobacillus casei 3 billion **†
Lactobacillus rhamnosus 1.44 billion **†
Lactobacillus rhamnosus (B) 1.2 billion **†
Lactobacillus acidophilus 1.2 billion **†
Bifidobacterium breve 1.2 billion **†
Bifidobacterium longum 1.2 billion **†
Lactobacillus plantarum 1.2 billion **†
Bifidobacterium bifidum 0.6 billion **†
Lactobacillus fermentum 0.6 billion **†
Bifidobacterium lactis 0.1 billion **†
Lactobacillus paracasei 0.1 billion **†
Lactobacillus salivarius 0.1 billion
**Daily Value not established.
†colony forming units
iHerb Customer Reviews

Really works!

Posted by iHerb Customer on May 31, 2017 | Verified Purchase

I've been using this product for well over 20 years. I've got IBS so need to be careful with diet and absolutely need a good probiotic. Ultimate Probiotic does the job! After several years I thought I could go without and stopped taking it for a while. After a few weeks my gut was not feeling very good. Started back on the probiotics and everything settled down. I'm on this for life! Denise

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Not worth the money

Posted by iHerb Customer on Sep 01, 2016 | Verified Purchase

12/12 but not active. I've used may brands and this one did not work.

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No see expected effect

Posted by iHerb Customer on Aug 05, 2015 | Verified Purchase

I have been taking a similar product of the same brand, but not buy in iherb, it works quite good. However, I haven't seen expected effect from the one I bought in iherb.

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Middle of the road

Posted by iHerb Customer on Feb 24, 2014 | Verified Purchase

I like that it has 12 strains but I wish the strength was stronger than 12 billion active

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Looks good from the label

Posted by iHerb Customer on Dec 01, 2012 | Verified Purchase

I was looking for a less expensive probiotic that had a doctor's recommendation. So I'm trying this. I just know that when I don't use a good probiotic I have digestive issues. I haven't been on this one long enough to really give a decent review but this review page "requires" that I fill in all the!

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