Comparison

Prebiotic Plus Probiotic 2 Billion and Advanced Strength Probiotic 50 Billion

Prebiotic Plus Probiotic 2 Billion (Spring Valley) lists 11 distinct ingredients and Advanced Strength Probiotic 50 Billion (Spring Valley) 10 (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)
IngredientPrebiotic Plus Probiotic 2 BillionAdvanced Strength Probiotic 50 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: Prebiotic Plus Probiotic 2 Billion, 1 capsule; Advanced Strength Probiotic 50 Billion, 1 capsule. Current labels entered July 2018 and June 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own