Solgar B-Complex 100 vs 21st Century B-50 Complex Prolonged Release
Side-by-side supplement facts comparison
B-Complex "100", 100 Vegetable Capsules
Each required nutrient in the Vitamin B Complex performs a unique role in maintaining proper metabolic functioning, while nutritionally supporting the body during the occasional stress of daily living. B Complex vitamins are needed for the metabolism of carbohydrates, fats and proteins, which converts food into energy. In addition, these vitamins play a necessary role in supporting cardiovascular and nervous system health. Solgar's KOF-K certification #K-1250.

B-50 Complex, Prolonged Release, 60 Tablets
B vitamins are interdependent upon each other and interrelated in function; they help convert food into energy and help maintain the nervous system and body tissues. Prolonged release vitamins slowly release nutrients into the body over an extended period of time.

At a Glance
Processing analysis…
Ingredient Comparison
Total mg Per Serving
B-Complex "100", 100 Vegetable Capsules
B-50 Complex, Prolonged Release, 60 Tablets
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0 servings per container
0 servings per container

B-Complex "100", 100 Vegetable Capsules
Solgar · 1 Vegetable Capsule
B-Complex "100", 100 Vegetable Capsules
Solgar · 1 Vegetable Capsule
| Ingredient | Amount | DV |
|---|---|---|
Thiamin (vitamin B1) (as thiamin mononitrate) | 100 mg | 8% |
Riboflavin (vitamin B2) | 100 mg | 7% |
Niacin (vitamin B3) (as niacinamide) | 100 mg | 625% |
Vitamin B6 (as pyridoxine HCl) | 100 mg | 5% |
Folate | 666 mcg DFE (400 mcg folic acid) | 167% |
Vitamin B12 (as cyanocobalamin) | 100 mcg | 4% |
Biotin (as d-biotin) | 100 mcg | 333% |
Pantothenic Acid (vitamin B5) (as d-calcium pantothenate) | 100 mg | 2% |
Choline (as choline bitartrate) | 20 mg | 4% |
Inositol | 100 mg | † |
† Daily Value not established

B-50 Complex, Prolonged Release, 60 Tablets
21st Century · 1 Tablet
B-50 Complex, Prolonged Release, 60 Tablets
21st Century · 1 Tablet
| Ingredient | Amount | DV |
|---|---|---|
Thiamin (as Thiamin Mononitrate, Vitamin B-1) | 50 mg | 4% |
Riboflavin (Vitamin B-2) | 50 mg | 3% |
Niacin (as Niacinamide) | 50 mg | 313% |
Vitamin B-6 (as Pyridoxine HCl) | 50 mg | 2% |
Folate | 667 mcg DFE (400 mcg Folic Acid) | 167% |
Vitamin B-12 (as Cyanocobalamin) | 50 mcg | 2% |
Biotin | 50 mcg | 167% |
Pantothenic Acid (as d-Calcium Pantothenate) | 10 mg | 200% |
Calcium (as Calcium Carbonate) | 124 mg | 10% |
† Daily Value not established
Other Ingredients Analysis
Analysis of inactive ingredients for dietary restrictions, allergens, and artificial additives.

B-Complex "100", 100 Vegetable Capsules
Solgar
Excellent
Other Ingredients
Vegetable cellulose, vegetable magnesium stearate, silica.Warnings
Positives

B-50 Complex, Prolonged Release, 60 Tablets
21st Century
Excellent
Other Ingredients
Cellulose, stearic acid, hydroxypropyl methylcellulose, silicon dioxide, gum acacia. Contains 2% of: Dicalcium phosphate, ethylcellulose, magnesium silicate, magnesium stearate, polyethylene glycol, polysorbate, polyvinyl alcohol.Warnings
Positives
How Clean Score is Calculated
Serving Information
| Detail | B-Complex "100", 100 Vegetable Capsules | B-50 Complex, Prolonged Release, 60 Tablets |
|---|---|---|
| Serving Size | 1 Vegetable Capsule | 1 Tablet |
| Servings Per Container | — | — |
| Package Quantity | 100 count | 60 count |
Certifications & Claims
B-Complex "100", 100 Vegetable Capsules
B-50 Complex, Prolonged Release, 60 Tablets