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Co-Enzyme B-Complex

product on market Capsule NOW Safety: 95/100
95/100

This product looks safe

  • Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)
  • Folate: 680mg is 680.0× the Tolerable Upper Intake Level (1.0mg)
  • 67% of ingredients have research evidence
D Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula contains B-vitamins and Vitamin C, which are supported by strong evidence for their roles in energy metabolism and cellular function. These nutrients act as essential cofactors for various enzymatic processes throughout the body. Research indicates these ingredients are generally safe for consumption.

AI-generated summary based on research evidence. Not medical advice.

Alerts

Safety Alerts

Niacin: 100mg is 2.9× the Tolerable Upper Intake Level (35mg)

Folate: 680mg is 680.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for Co-Enzyme B-Complex
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Veg Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
60 mg (67% DV)
50 mg (4167% DV)
41.7× RDA — above typical dose 76 studies (A:0, B:33)
50 mg (3846% DV)
38.5× RDA — above typical dose 13 studies (A:0, B:1)
100 mg (625% DV)
Exceeds UL by 2.9× (UL: 35 mg) 196 studies (A:5, B:63)
50 mg (2941% DV)
38.5× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
680 mcg DFE (170% DV)
Exceeds UL by 680.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
250 mcg (10417% DV)
104.2× RDA — above typical dose 139 studies (A:1, B:44)
1000 mcg (3333% DV)
33.3× RDA — above typical dose 27 studies (A:0, B:11)
50 mg (1000% DV)
10.0× RDA — above typical dose 2 studies — no high-quality reviews
25 mg (5% DV)
Market median: 125.0mg (294 products) 38 studies (A:1, B:7)
Market median: 496.0mg (192 products) 20 studies — no high-quality reviews
Market median: 200.0mg (198 products) 6 studies — no high-quality reviews
25 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews
30 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
10 mg
Market median: 100.0mg (283 products) 144 studies (A:1, B:64)

Other Ingredients

Hypromellose Microcrystalline Cellulose Stearic Acid Silicon Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: Take 2 capsules daily with food.

Warnings & Precautions

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Keep out of reach of children.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

This product contains Biotin which may interfere with some blood test results. Go to nowfoods.com/biotinlab for details.

Formulation Notes

B-Complex Vitamins are needed by the body for energy production, synthesis of blood cells, healthy nervous system function, and countless other metabolic processes. The forms of the B Vitamins found in foods and most supplements, however, require conversion into their active forms before they can perform their functions as co-factors in biochemical reactions. NOW Co-Enzyme B-Complex contains B Vitamins in their active or "co-enzyme" forms.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.

Natural color variation may occur in this product.

Crescent H (Halal)

Co-enzyme B-complex with Alpha Lipoic Acid and CoQ10

Nutritional health Supports healthy nervous system

Vegetarian/Vegan

Triangle K (Kosher)

Made and quality tested in the USA with globally sourced ingredients.

Additional Information

Store in a cool, dry place after opening.

Crescent H (Halal) GMP Quality Assured

Triangle K (Kosher)

Vitamins Family owned since 1968.

MTHF = Methyltetrahydrofolate

Metadata

Product Details

UPC / SKU7 33739 00406 2
DSLD Entry Date2024-06-20
Product TypeOther Combinations
FormCapsule
BrandNOW
DSLD ID314110
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.