B-100 Complex
21st Century
B-100 Complex
4.7
★ ★ ★ ★ ★
(4499 ratings)
Thiamin 100 mg
Riboflavin 100 mg
Vitamin B5 100 mg
Vitamin B12 100 mcg
Niacin 100 mg
Biotin 100 mcg
Vitamin B6 100 mg
Score 88.0
This 21st Century B-100 Complex offers a complete spectrum of high-potency B vitamins at a very competitive price, making it an excellent budget-friendly choice for comprehensive B-vitamin support. Its main drawback is the use of less bioavailable forms of certain B vitamins, which might be a consideration for those with specific metabolic needs.
Quantity: 60 Tablet(s)Servings size: 1 Tablet(s) (60 servings)
Selected goals:
Other goals:
Energy
Brain Health
Cognitive Support
Cardiovascular Support
Testosterone Support
leaderboard Score 88.0
This 21st Century B-100 Complex offers a complete spectrum of high-potency B vitamins at a very competitive price, making it an excellent budget-friendly choice for comprehensive B-vitamin support. Its main drawback is the use of less bioavailable forms of certain B vitamins, which might be a consideration for those with specific metabolic needs.
insights Analysis
The 21st Century B-100 Complex is a high-potency B-vitamin supplement designed to support a wide array of bodily functions, including energy production, brain health, and metabolism. It delivers 100mg or 100mcg of most B vitamins, which is a substantial dose, often exceeding daily recommended values for maintenance and aiming for therapeutic effects. The product's main strength lies in its comprehensive B-vitamin profile and exceptionally low price point of $0.13 per serving, making it highly accessible. However, it uses common, synthetic forms of Vitamin B12 (Cyanocobalamin) and Vitamin B6 (Pyridoxine Hydrochloride). While effective for most individuals, some people, particularly those with MTHFR gene variations, may benefit more from active forms like methylcobalamin and pyridoxal-5-phosphate (P-5-P). Despite this, its high review count indicates broad user satisfaction and perceived efficacy for its intended goals.
- Offers a comprehensive blend of all eight essential B vitamins.
- Provides high potency, with most B vitamins at 100mg/mcg, ensuring robust support.
- Exceptional value for money, with a very low price per serving ($0.13).
- Convenient tablet form with 60 servings per bottle.
- Uses cyanocobalamin for B12, which is a synthetic form and less bioavailable than methylcobalamin for some individuals.
- Contains pyridoxine hydrochloride for B6, which is not the active P-5-P form and can be less ideal for long-term high dosage.
- High dosages might be excessive for individuals with no deficiency or those sensitive to high nutrient levels.
- High doses of B vitamins can cause harmless bright yellow discoloration of urine.
- Individuals with specific health conditions, or those taking medications, should consult a healthcare professional due to the high dosages.
- Prolonged intake of high doses of pyridoxine hydrochloride (Vitamin B6) may, in rare cases, lead to peripheral neuropathy.
$9.49($0.15 per serving)
 iHerb | $ 9.49 | |
 Pure Formulas | $ 10.06 |
bolt Effectiveness for goals
B-complex supplements provide a combination of essential B vitamins that are crucial for various bodily functions. These include supporting cellular metabolism, promoting nervous system health, and aiding in the production of red blood cells. They collectively help convert food into energy and maintain overall well-being.
B vitamins act as coenzymes in numerous metabolic pathways that convert carbohydrates, fats, and proteins into energy. Specifically, thiamine, riboflavin, niacin, pantothenic acid, and vitamin B6 are vital for processes like the citric acid cycle and electron transport chain. This support helps the body efficiently utilize nutrients for fuel.
B vitamins are water-soluble and often work synergistically, meaning they complement each other's functions within the body. Their roles in metabolism, energy production, and nerve function are interconnected. Combining them ensures comprehensive support for these interdependent biochemical processes, as a deficiency in one can impact the effectiveness of others.
Yes, several B vitamins are essential for the proper functioning of the nervous system. Vitamin B1 (thiamine) is crucial for nerve signal transmission, while vitamins B6 (pyridoxine), B9 (folate), and B12 (cobalamin) are involved in neurotransmitter synthesis and maintaining myelin. Adequate intake supports cognitive function and nerve health.
Folate (Vitamin B9) and Vitamin B12 (cobalamin) have a closely linked metabolic relationship, particularly in red blood cell formation and DNA synthesis. Vitamin B12 is required to convert folate into its active form, tetrahydrofolate, which is essential for cell division and growth. A deficiency in B12 can effectively 'trap' folate, even if sufficient folate is present.
schedule Dosage, timing & forms
Many individuals prefer taking B vitamin supplements in the morning, often with breakfast. This can align with daily energy demands and support optimal absorption. Taking them too late in the day might interfere with sleep for some people.
It is generally recommended to take B vitamin complexes with food. This can help prevent stomach upset, especially with higher doses, and may improve the absorption of certain nutrients. A meal provides a buffer and supports better tolerance.
Yes, B vitamins are water-soluble, meaning the body typically excretes what it doesn't use. Daily intake of a high-potency B-complex is common for individuals seeking comprehensive nutritional support. Always adhere to the recommended serving size on the product label.
As a tablet, this type of B vitamin complex is designed for oral consumption, typically swallowed whole with water. Tablets often provide a consistent dose and are generally formulated for controlled release in the digestive system. This form is convenient for daily supplementation.
High potency B vitamin complexes are formulated to provide significant amounts of these essential nutrients, often exceeding the Recommended Daily Allowance. This is intended to support various metabolic functions and address potential dietary gaps more effectively. Since B vitamins are water-soluble, excess amounts are typically excreted.
health_and_safety Safety & interactions
While generally safe, very high doses of certain B vitamins can lead to specific side effects. For example, excessive Vitamin B6 intake has been linked to nerve damage. It is important to adhere to recommended dosages and consult a healthcare professional for concerns.
Yes, it is common for urine to turn a bright, fluorescent yellow color after taking B vitamin supplements. This effect is primarily due to Riboflavin (Vitamin B2), which is naturally yellow and excreted when consumed in excess of what the body needs. This change is harmless.
Yes, some B vitamins can interact with certain medications. For instance, Vitamin B6 may interfere with some anti-seizure medications, and Folate can interact with drugs like methotrexate. It is advisable to consult a healthcare provider about potential interactions before starting any new supplement.
Yes, high doses of biotin can significantly interfere with certain laboratory tests, particularly those that use biotin-streptavidin technology. This can lead to falsely high or low test results, which may affect diagnosis or treatment. It is crucial to inform your doctor about all supplements you are taking, especially biotin, before any lab work.
Niacinamide, a form of Niacin, is generally not associated with the 'niacin flush,' which is a sensation of warmth, redness, and itching of the skin. The flush is typically caused by another form of Niacin, nicotinic acid. Therefore, supplements containing niacinamide usually avoid this common side effect.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Vitamin B1 | 100 mg |
Vitamin B2 | 100 mg |
Niacin | 100 mg |
Vitamin B6 | 100 mg |
Folate | 667 mcg DFE |
Vitamin B12 | 100 mcg |
Biotin | 100 mcg |
Pantothenic Acid | 100 mg |
Calcium | 160 mg |
Categories
Niacin 90.0
Delivering 100mg of Niacin as Niacinamide is a strong point, as this form typically avoids the 'niacin flush' sensation common with nicotinic acid, making it more comfortable for users while still supporting energy and cellular health.
Thiamin 90.0
The 100mg of Thiamine Mononitrate is an excellent and effective dosage for Vitamin B1, crucial for carbohydrate metabolism and nerve function. This form is well-absorbed and widely used in supplements.
Biotin 90.0
The inclusion of 100mcg of Biotin is a standard and effective dose, supporting metabolic processes and contributing significantly to hair, skin, and nail health, aligning well with common uses of B-complexes.
Goals
Energy 90.0
B vitamins are crucial coenzymes in the metabolic pathways that convert food into energy. This B-100 complex provides ample amounts of all B vitamins, highly supporting energy production and combating fatigue.
Metabolism Boost 90.0
B vitamins are indispensable cofactors for virtually every metabolic process in the body, particularly in the breakdown of carbohydrates, fats, and proteins. This B-100 complex, with its high concentrations, offers strong support for efficient metabolism.
General Health 90.0
As a comprehensive B-complex, this product provides essential vitamins that are cofactors for a vast number of enzymatic reactions across all body systems. This broad support makes it highly beneficial for maintaining overall physiological functions and general well-being.
Recommended Alternatives
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Solgar is a well-established brand with a strong reputation for high-quality and pure supplements. This B-100 complex provides comprehensive B vitamin support at 100mg/mcg potency for most B vitamins, along with Choline and Inositol. It offers a premium brand experience and trusted formulation at a price point that presents better value per serving than the original product.
78 Value
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This product is a direct competitor to the original B-100 complex, offering the same 100mg/mcg potencies for most B vitamins. It provides similar comprehensive B vitamin support to the original product but often at a slightly lower price per serving, making it a marginally better value choice for those seeking a standard B-100 supplement.
98 Performance
B-Complex
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(4459 ratings)
This B-complex excels in bioavailability and comprehensiveness, utilizing active forms of B12 (Methylcobalamin), Folate (L-Methylfolate), B6 (Pyridoxal 5-Phosphate), and B2 (Riboflavin 5-Phosphate), along with Benfotiamine for B1. Nutritionists highly recommend these active forms for optimal absorption. It also includes organic whole food blends, probiotics, and adaptogens for a holistic approach to health.
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Mega B-150 Balanced B-Complex
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(325 ratings)
This product offers even higher potencies (150mg/mcg for most B vitamins) and critically includes the active, more bioavailable forms of B12 (Methylcobalamin) and Folate (L-5-Methyltetrahydrofolate), which are often preferred by nutritionists for better absorption and efficacy, especially for individuals with MTHFR gene variations. It's a robust and superior formulation.
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High Potency Vitamin B Complex
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This alternative provides a high-potency B-complex featuring active forms of B12 (Methylcobalamin) and Folate (6S)-5-Methyltetrahydrofolic Acid, Glucosamine Salt), which offer superior absorption. It also includes both common and active forms of B6 (Pyridoxine Hydrochloride and Pyridoxal 5-Phosphate) and Niacin (Nicotinic Acid and Niacinamide), providing a more complete and bioavailable spectrum compared to the original product.