Comparison

Alpha Lipoic Acid 600 mg and Best Stabilized R-Lipoic Acid 100 mg

Alpha Lipoic Acid 600 mg (Nova Nutritions) lists 4 distinct ingredients and Best Stabilized R-Lipoic Acid 100 mg (Doctor's Best) 2 (rows of one ingredient counted once); 2 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 0.57.

Amount per serving (and % of the Daily Value)
IngredientAlpha Lipoic Acid 600 mgBest Stabilized R-Lipoic Acid 100 mg
Biotin300 mcg (1000%)150 mcg (500%)
Alpha Lipoic Acid600 mg100 mg
Folate666.7 mcg DFE (167%)
Pantothenic Acid (Vitamin B5)300 mg (6000%)

Amounts are per serving as DSLD gives them: Alpha Lipoic Acid 600 mg, 1 capsule; Best Stabilized R-Lipoic Acid 100 mg, 1 capsule. Current labels entered June 2020 and August 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own