Comparison

D-Chiro-Inositol and Inositol Powder

D-Chiro-Inositol (Swanson Ultra) lists 2 distinct ingredients and Inositol Powder (Vitamin World) 1 (rows of one ingredient counted once); 1 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 0.54.

Amount per serving (and % of the Daily Value)
IngredientD-Chiro-InositolInositol Powder
Inositol85 mg1,000 mg
Manganese3.6 mg (157%)

Amounts are per serving as DSLD gives them: D-Chiro-Inositol, 1 capsule; Inositol Powder, 0.25 tsp. Current labels entered June 2018 and October 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own