Comparison

Advanced Strength Probiotic 50 Billion and Prebiotic Plus Probiotic 2 Billion

Advanced Strength Probiotic 50 Billion (Spring Valley) lists 10 distinct ingredients and Prebiotic Plus Probiotic 2 Billion (Spring Valley) 11 (rows of one ingredient counted once); 10 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.90.

Amount per serving (and % of the Daily Value)
IngredientAdvanced Strength Probiotic 50 BillionPrebiotic Plus Probiotic 2 Billion
Lactobacillus acidophilusnot disclosednot disclosed
Lactobacillus rhamnosusnot disclosednot disclosed
Bifidobacterium animalis lactisnot disclosednot disclosed
Lactobacillus plantarumnot disclosednot disclosed
Bifidobacterium longumnot disclosednot disclosed
Lactobacillus caseinot disclosednot disclosed
Lactobacillus paracaseinot disclosednot disclosed
Bifidobacterium brevenot disclosednot disclosed
Lactobacillus gasserinot disclosednot disclosed
Lactobacillus reuterinot disclosednot disclosed
Inulin25 mg

Amounts are per serving as DSLD gives them: Advanced Strength Probiotic 50 Billion, 1 capsule; Prebiotic Plus Probiotic 2 Billion, 1 capsule. Current labels entered June 2018 and July 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own