21st Century B-50 Complex Prolonged Release vs Solgar B-Complex with Vitamin C
Side-by-side supplement facts comparison
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.

B-Complex with Vitamin C Stress Formula, 250 Tablets
B Complex vitamins are needed for the metabolism of carbohydrates, fats and proteins, which convert food into cellular energy.

At a Glance
Processing analysis…
Ingredient Comparison
Total mg Per Serving
B-50 Complex, Prolonged Release, 60 Tablets
B-Complex with Vitamin C Stress Formula, 250 Tablets
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0 servings per container
125 servings per container

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

B-Complex with Vitamin C Stress Formula, 250 Tablets
Solgar · 2 Tablets
B-Complex with Vitamin C Stress Formula, 250 Tablets
Solgar · 2 Tablets
| Ingredient | Amount | DV |
|---|---|---|
Vitamin C | 500 mg | 556% |
Thiamin (vitamin B1) | 10 mg | 883% |
Riboflavin (vitamin B2) | 10 mg | 769% |
Niacin (vitamin B3) | 100 mg | 625% |
Vitamin B6 | 10 mg | 588% |
Folate | 166 mcg DFE (100 mcg folic acid) | 42% |
Vitamin B12 (as cyanocobalamin) | 25 mcg | 1% |
Biotin | 25 mcg | 83% |
Pantothenic Acid | 100 mg | 2% |
Choline | 41 mg | 7% |
Inositol | 100 mg | † |
Herbal Powdered Blend | 13 mg | † |
† Daily Value not established
Other Ingredients Analysis
Analysis of inactive ingredients for dietary restrictions, allergens, and artificial additives.

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

B-Complex with Vitamin C Stress Formula, 250 Tablets
Solgar
Excellent
Other Ingredients
Microcrystalline cellulose, vegetable cellulose, vegetable stearic acid, silica, vegetable magnesium stearate, vegetable glycerin, carnauba wax.Warnings
Positives
How Clean Score is Calculated
Serving Information
| Detail | B-50 Complex, Prolonged Release, 60 Tablets | B-Complex with Vitamin C Stress Formula, 250 Tablets |
|---|---|---|
| Serving Size | 1 Tablet | 2 Tablets |
| Servings Per Container | — | 125 |
| Package Quantity | 60 count | 250 count |
Certifications & Claims
B-50 Complex, Prolonged Release, 60 Tablets
B-Complex with Vitamin C Stress Formula, 250 Tablets