SuppHelper
search
Home›Supplements›Vitamin›Niacin›Complete B 100 mg Natural Factors
Product Image

Complete B 100 mg

Natural Factors

4.7
★ ★ ★ ★ ★
(1226 ratings)
Vitamin B6 100 mg
Thiamin 100 mg
PABA 100 mg
Niacin 100 mg
Choline 84 mg
Biotin 300 mcg
Vitamin B12 100 mcg
Product Image
Score 72

A competitively priced, high-potency B-complex with good amounts of co-factors, but uses less bioavailable B vitamin forms.

Quantity: 90 Tablet(s) • (90 servings)
Goals:
flag Detoxification
flag Mood Support
flag Bone Health
flag Brain Health
flag Mental Focus

leaderboard Score 72

A competitively priced, high-potency B-complex with good amounts of co-factors, but uses less bioavailable B vitamin forms.

insightsAnalysis

This B-complex from Natural Factors aims to provide comprehensive B vitamin support, with most B vitamins dosed at the 100mg level, similar to other 'B-100' products. It includes additional beneficial compounds such as PABA, Inositol, and Choline at solid dosages, with a notable 300mcg of Biotin. However, like many standard B-complexes, it uses less bioavailable forms for B12 (Cyanocobalamin), B6 (Pyridoxine Hydrochloride), and Folate (likely Folic Acid). This could potentially limit its efficacy for individuals with certain genetic predispositions or impaired conversion pathways. The price per serving is quite competitive, making it an attractive option for budget-conscious consumers seeking a potent B-complex.
thumb_upPros
  • Excellent price per serving for a B-100 complex.
  • High dosages of most B vitamins, supporting overall energy and metabolism.
  • Good amounts of supportive nutrients like PABA, Inositol, and Choline.
  • Higher Biotin content (300mcg) than some comparable B-complexes.
thumb_downCons
  • Uses less bioavailable forms of B12 (Cyanocobalamin) and B6 (Pyridoxine Hydrochloride).
  • Likely uses Folic Acid instead of the more active L-5-Methyltetrahydrofolate for folate.
  • Contains Dicalcium Phosphate and Calcium Pantothenate as forms of calcium, which might contribute to excess calcium intake for some.
warningWarnings
  • High doses of B vitamins can cause bright yellow urine.
  • Niacinamide is generally non-flushing, but individual sensitivities vary.
  • Always consult a healthcare professional, especially if pregnant, nursing, or on medication.
flagReport analysis
$18.87($0.20 per serving)
iHerb
$ 18.87
Vitacost
$ 18.87
Amazon
$ 18.87
flagReport prices

Ingredients

IngredientAmount per serving
Thiamine
100 mg
Riboflavin
100 mg
Niacin
100 mg
Vitamin B6
100 mg
Folate
680 mcg DFE
Vitamin B12
100 mcg
Biotin
300 mcg
Pantothenic Acid
100 mg
Choline
84 mg
Calcium
80 mg
Inositol
100 mg
Para-Aminobenzoic Acid
100 mg
grain_off Gluten Free person Adults 18–50 eco Vegan free_breakfast Dairy Free eco Vegetarian
flagReport overview

Categories

Niacin 80
Contains 100mg of Niacinamide, a popular non-flushing form of B3. This provides strong metabolic support without the discomfort associated with nicotinic acid.
Thiamin 75
Provides 100mg of Thiamine Hydrochloride (B1), a stable and widely used form of thiamin. It is generally well-absorbed and effective for energy metabolism.
Biotin 75
At 300mcg, the biotin content is robust for a B-complex, providing strong support for hair, skin, and nail health, exceeding the amount found in many general formulas.

Goals

flag Metabolism Boost 85
With 100mg of most B vitamins, this product is well-equipped to act as coenzymes in numerous metabolic pathways, facilitating the efficient breakdown of macronutrients for energy production and supporting overall metabolic health.
flag Energy 80
The high potencies of most B vitamins (100mg for B1, B2, B3, B5, B6) are excellent for supporting energy metabolism and conversion of food into cellular energy. The inclusion of B12 and Biotin further aids in this critical function.
flag General Health 80
Providing a broad and high-potency spectrum of B vitamins, along with synergistic nutrients like Choline and Inositol, this product effectively supports a wide range of bodily functions and contributes significantly to overall health and well-being.
inventory_2Recommended products
75 Value

Vitamin B-Complex 100

Solaray
4.7
★★★★★
(4100 ratings)
Offering a similar '100 mg' comprehensive B-complex at a slightly lower price per serving (19 cents), Solaray presents a good balance of potency and cost-effectiveness, appealing to those looking for a solid daily B supplement.
Other sellers (3)
75 Value

Vitamin B-Complex 100

Solaray
4.7
★★★★★
(2344 ratings)
This larger bottle of Solaray's B-100 offers an even better long-term value at 20 cents per serving for a comprehensive B vitamin blend, matching the per-serving price of Natural Factors but coming in a larger quantity for less frequent purchases.
Other sellers (1)
78 Value

B-Complex '100'

Solgar
4.7
★★★★★
(15200 ratings)
Solgar is a reputable brand known for quality, and their B-Complex '100' provides high potency B vitamins at an attractive price point of 15 cents per serving, offering excellent value for a trusted formula.
Other sellers (3)
90 Performance

Coenzyme B-Complex Caps

Country Life
4.9
★★★★★
(29628 ratings)
This product provides active, coenzymated forms of B vitamins (e.g., Methylcobalamin, L-5-Methyltetrahydrofolate, P-5-P) which are more readily utilized by the body, offering superior bioavailability and efficacy, especially for those with genetic variations.
Other sellers (1)
90 Performance

Coenzyme B-Complex Caps

Country Life
4.9
★★★★★
(32007 ratings)
As another iteration of Country Life's Coenzyme B-Complex, it offers the same high-quality, bioavailable B vitamin forms, making it a superior choice for maximum absorption and benefit.
Other sellers (3)
85 Performance

Activated B-Complex High Bioavailability

Swanson
4.9
★★★★★
(1190 ratings)
This alternative is formulated with activated forms of B vitamins, ensuring improved absorption and utilization, which can lead to greater efficacy for energy, brain health, and overall metabolism compared to standard forms.
Other sellers (1)
65 Budget

B 100 Complex

Spring Valley
4.7
★★★★★
(401 ratings)
This alternative offers a B-100 complex at a significantly lower price point (9 cents per serving compared to 20 cents for Natural Factors), making it a much more budget-friendly option for general B vitamin supplementation.
Other sellers (0)
60 Budget

B 100 Complex

Thompson
4.7
★★★★★
(771 ratings)
With a price per serving of 15 cents, this product provides a '100 mg' B-complex at a notable saving compared to Natural Factors, offering a basic yet effective option for B vitamin supplementation.
Other sellers (2)
68 Budget

B-100

NOW
4.8
★★★★★
(9362 ratings)
At 12 cents per serving, NOW's B-100 is considerably more affordable than Natural Factors, delivering a similar high potency B vitamin blend, making it an excellent economic choice.
Other sellers (4)
75 Value

Vitamin B-Complex 100

Solaray
4.7
★★★★★
(4100 ratings)
Offering a similar '100 mg' comprehensive B-complex at a slightly lower price per serving (19 cents), Solaray presents a good balance of potency and cost-effectiveness, appealing to those looking for a solid daily B supplement.
Other sellers (3)
75 Value

Vitamin B-Complex 100

Solaray
4.7
★★★★★
(2344 ratings)
This larger bottle of Solaray's B-100 offers an even better long-term value at 20 cents per serving for a comprehensive B vitamin blend, matching the per-serving price of Natural Factors but coming in a larger quantity for less frequent purchases.
Other sellers (1)
78 Value

B-Complex '100'

Solgar
4.7
★★★★★
(15200 ratings)
Solgar is a reputable brand known for quality, and their B-Complex '100' provides high potency B vitamins at an attractive price point of 15 cents per serving, offering excellent value for a trusted formula.
Other sellers (3)
90 Performance

Coenzyme B-Complex Caps

Country Life
4.9
★★★★★
(29628 ratings)
This product provides active, coenzymated forms of B vitamins (e.g., Methylcobalamin, L-5-Methyltetrahydrofolate, P-5-P) which are more readily utilized by the body, offering superior bioavailability and efficacy, especially for those with genetic variations.
Other sellers (1)
90 Performance

Coenzyme B-Complex Caps

Country Life
4.9
★★★★★
(32007 ratings)
As another iteration of Country Life's Coenzyme B-Complex, it offers the same high-quality, bioavailable B vitamin forms, making it a superior choice for maximum absorption and benefit.
Other sellers (3)
85 Performance

Activated B-Complex High Bioavailability

Swanson
4.9
★★★★★
(1190 ratings)
This alternative is formulated with activated forms of B vitamins, ensuring improved absorption and utilization, which can lead to greater efficacy for energy, brain health, and overall metabolism compared to standard forms.
Other sellers (1)
flagReport alternatives

SuppHelper

Compare supplements smarter. Science-backed, user-rated, updated daily.

© 2025 SuppHelper. All rights reserved.

Explore

  • Compare Supplements
  • Health Goals
  • Stacks

Legal

  • Privacy Policy
  • Terms of Use
  • Medical Disclaimer

Stay in the Loop