Probiotics supplement price comparison
Ranked 896 products containing Probiotics by price per serving. Amounts are shown as declared on the label.
Among listed Probiotics products, the lowest price per serving is Nature's Bounty, Acidophilus Probiotic, 120 Tablets (0.5 mg per Tablet) at $0.0688 per serving. This value is based on the listed price at the most recent collection and is the lowest within this site's coverage. This price per serving is estimated from the product notation for servings per container.
Price data as of 2026-09-28
How to read this table
How is Probiotics declared on the label?
Probiotic labels declare the amount in CFU (colony-forming units) rather than by weight. CFU counts living organisms, and the figures are printed at a large order of magnitude — 10 billion, 50 billion and so on. Strains are named in three parts, genus, species and strain (Lactobacillus acidophilus NCFM, for example), though some products state only a total CFU without breaking it out by strain.
How much does Probiotics pricing vary between products?
Probiotics products cannot have their label amount converted to a weight unit, so price per ingredient unit is undefined. This page therefore sorts only by price per serving, keeps amounts as declared on the label, and does not rank products by amount.
The products in this list come from 218 brands, and the sort order is determined solely by price per serving.
What are the limits of this Probiotics comparison?
Strain count (10 strains, say) and CFU are declared on different bases from product to product, so this table does not rank on them. Products that print CFU at time of manufacture are mixed with products that guarantee CFU through the expiration date, and those two numbers cannot be set side by side. Handling conditions such as refrigeration are not reflected in the price comparison either.
Ingredients and amounts shown are label-declared values and do not guarantee any medical benefit such as prevention or treatment of disease. This page makes no judgment that any form or product is better than another; ranking is determined solely by price and label amount. The calculation method and limits are documented in How prices are calculated.