Immune PostBiotic
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Vitamin C289 systematic reviews · 808 randomised trials | 60 mg |
| Vitamin D-3 | 25 mcg |
| Zinc469 systematic reviews · 1315 randomised trials | 7.5 mg |
| Selenium243 systematic reviews · 573 randomised trials | 35 mcg |
| EpiCor | 500 mg |
| Olive leaf extract | 33 mg |
Certifications & Testing
Other Ingredients
Hypromellose, Microcrystalline Cellulose, Magnesium Stearate
Recommended Use
Suggested Usage: Take 1 capsule daily with a meal.
Warnings
Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children. Not manufactured with wheat, soy, milk, egg, fish or shellfish ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Frequently Asked Questions
What is NOW Foods Immune PostBiotic's Formulate score?
NOW Foods Immune PostBiotic scores 82 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is NOW Foods Immune PostBiotic worth it?
NOW Foods Immune PostBiotic scores 82/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in NOW Foods Immune PostBiotic?
Each serving contains Vitamin C (60 mg), Vitamin D-3 (25 mcg), Zinc (7.5 mg), Selenium (35 mcg), and more. Serving size: 1 Veg Capsule(s). 60 servings per container.
How do I take immune postbiotic?
Suggested Usage: Take 1 capsule daily with a meal.
Who makes Immune PostBiotic?
Immune PostBiotic is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods Immune PostBiotic third-party tested?
NOW Foods lists the following certifications and testing for this product: Dairy-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.