Comparison
Hair, Skin & Nails and Advanced Formula Hair, Skin & Nails
Hair, Skin & Nails (21st Century) lists 51 distinct ingredients and Advanced Formula Hair, Skin & Nails (21st Century) 51 (rows of one ingredient counted once); 50 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 0.95.
| Ingredient | Hair, Skin & Nails | Advanced Formula Hair, Skin & Nails |
|---|---|---|
| Vitamin C | 50 mg (56%) | 50 mg (56%) |
| Calcium | 125 mg (10%) | 70 mg (5%) |
| Vitamin B6 | 6.5 mg (382%) | 6.5 mg (382%) |
| Vitamin D | 1.2 mcg (6%) | 1.25 mcg (6%) |
| Magnesium | 20 mg (5%) | 20 mg (5%) |
| Vitamin B12 | 25 mcg (1042%) | 25 mcg (1042%) |
| Zinc | 0.6 mg (5%) | 0.6 mg (5%) |
| Niacin | 7.5 mg (47%) | 7.5 mg (47%) |
| Vitamin E | 25 mg (167%) | 25 IU |
| Potassium | 5 mg (under 1%) | 0.897 mg (under 1%) |
| Folate | 42 mcg DFE (11%) | 25 mcg |
| Vitamin A | 750 mcg RAE (83%) | 2,500 IU |
| Pantothenic Acid (Vitamin B5) | 15 mg (300%) | 15 mg (300%) |
| Riboflavin | 5 mg (385%) | 5 mg (385%) |
| Thiamin | 5 mg (417%) | 5 mg (417%) |
| Biotin | 25 mcg (83%) | 25 mcg (83%) |
| Iron | 3.3 mg (18%) | 3.3 mg (18%) |
| Manganese | 0.6 mg (26%) | 0.6 mg (26%) |
| Iodine | 150 mcg (100%) | 150,000 mcg (100000%) |
| Choline | 25 mg (5%) | 25 mg (5%) |
| Inositol | 10 mg | 10 mg |
| Phosphorus | 58 mg (5%) | 54 mg (4%) |
| Leucine | not disclosed | not disclosed |
| Flavonoid | not disclosed | not disclosed |
| Valine | not disclosed | not disclosed |
| Isoleucine | not disclosed | not disclosed |
| Tyrosine | 7.2 mg | 7.2 mg |
| Arginine | not disclosed | not disclosed |
| Lysine | not disclosed | not disclosed |
| PABA | 10 mg | 10 mg |
| Glycine | not disclosed | not disclosed |
| Parsley | not disclosed | not disclosed |
| Rutin | not disclosed | not disclosed |
| Lecithin | not disclosed | not disclosed |
| Histidine | not disclosed | not disclosed |
| THREONINE | not disclosed | not disclosed |
| Kelp | not disclosed | not disclosed |
| Glutamic Acid | not disclosed | not disclosed |
| Horsetail | not disclosed | not disclosed |
| Alanine | not disclosed | not disclosed |
| Cysteine | 3.5 mg | 3.5 mg |
| Aspartic Acid | not disclosed | not disclosed |
| Serine | not disclosed | not disclosed |
| Ornithine | not disclosed | not disclosed |
| Rose (unspecified) | not disclosed | not disclosed |
| Watercress | not disclosed | not disclosed |
| RNA | 10 mg | 10 mg |
| DNA | 10 mg | 10 mg |
| Soy Protein | 50 mg | 50 mg |
| Brewer's Yeast | not disclosed | not disclosed |
| Betaine Hydrochloride | 10 mg | |
| Betaine | 10 mg |
Amounts are per serving as DSLD gives them: Hair, Skin & Nails, 1 tablet; Advanced Formula Hair, Skin & Nails, 1 caplet. Current labels entered August 2019 and June 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Hair, Skin & Nails21st Century: every row against all products listing it
- Advanced Formula Hair, Skin & Nails21st Century: every row against all products listing it