Comparison
L-Lysine + Vitamin C and C/Lysine Plus
L-Lysine + Vitamin C (Cooper Complete) lists 2 distinct ingredients and C/Lysine Plus (Douglas Laboratories) 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 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | L-Lysine + Vitamin C | C/Lysine Plus |
|---|---|---|
| Vitamin C | 2,000 mg (2222%) | 2,000 mg (2222%) |
| Lysine | 1,000 mg | 1,000 mg |
Amounts are per serving as DSLD gives them: L-Lysine + Vitamin C, 4 vegetarian capsules; C/Lysine Plus, 4 vegetarian capsules. Current labels entered March 2023 and August 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- L-Lysine + Vitamin CCooper Complete: every row against all products listing it
- C/Lysine PlusDouglas Laboratories: every row against all products listing it