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B-Complex

product on market Tablet or Pill Advanced Nutrition by Zahler Safety: 96/100
96/100

This product looks safe

  • Folate: 200mg is 200.0× the Tolerable Upper Intake Level (1.0mg)
  • 90% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The B-complex vitamins, including B2, B6, B12, and folate, are supported by strong evidence for their roles in energy metabolism and neurological function. These nutrients act as essential cofactors for numerous enzymatic reactions throughout the body. However, the overall evidence coverage for this specific formulation is limited.

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

Alerts

Safety Alerts

Folate: 200mg is 200.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

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

Label Data

1 Tablet(s)
Serving Size
60
Servings
Other Combinations
Product Type
90%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

2.6 mg (200% DV)
2.0× RDA — within safe limits 13 studies (A:0, B:1)
32 mg (200% DV)
2.3× RDA — within safe limits 196 studies (A:5, B:63)
3.4 mg (200% DV)
2.6× RDA — within safe limits 114 studies (A:3, B:35)
200 mcg DFE (50% DV)
Exceeds UL by 200.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
240 mcg (10000% DV)
100.0× RDA — above typical dose 139 studies (A:1, B:44)
30 mcg (100% DV)
Within RDA (1.0× RDA) 27 studies (A:0, B:11)
225 mg (41% DV)
Within RDA (0.4× RDA) 38 studies (A:1, B:7)
100 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Pantethine
15 mg
2.6 mg
2.2× RDA — within safe limits 76 studies (A:0, B:33)

Other Ingredients

Hypromellose Microcrystalline Cellulose Dicalcium Phosphate Stearic Acid Magnesium Stearate Crospovidone Beet root powder Silicon Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take 1 tablet daily with food, or as directed by a healthcare practitioner.

Warnings & Precautions

Keep out of reach of children.

Do not use if safety seal is damaged or missing.

If pregnant, nursing or on medication, consult with your healthcare practitioner.

Formulation Notes

Bioactive B-Complex Formula Zahler B-Complex is formulaed with a unique two-stage delivery system, with half of the nutrients released immediately and the other half delayed for sustained benefit and enhanced absorption. This advanced formula includes only body-ready (coenzyme, methylated and phosphorylated) forms that don't require complex conversion.

OU (Kosher) Kosher Pareve Under the strict supervision of Rabbi SH. Stern & the orthodox union

Non-GMO Gluten free Dairy free Soy free

Vegetarian friendly

Advanced two-stage delivery system General health

Additional Information

You may need additional supplements to support a healthy diet; consult your nutritionist for a formula that is right for you or contact us at 877-ASK-ZAHLER (877-275-9245) or ask@zahlers.com.

Dairy Kosher OU (Kosher) This product was manufactured in a GMP certified Facility

Store tightly closed in a cool, dry place.

Notes: Made in the USA

Feel better, everyday.

Metadata

Product Details

UPC / SKU8 48998 08215 4
DSLD Entry Date2022-02-23
Product TypeOther Combinations
FormTablet or Pill
BrandAdvanced Nutrition by Zahler
DSLD ID259968
Data Updated2026-04-11
Research

Research Evidence

22
Research Sources
49
Avg Quality
8
Rct
4
Meta Analysis
4
Clinical Trial
3
Systematic Review
1
Cochrane Review
1
Regulatory Source
B Effect of vitamin B2, vitamin C, vitamin D, vitamin E and folic acid in adults with essential hypertension: a systematic review and network meta-analysis
Systematic Review BMJ open 2024 PubMed DOI
B Effect of Vitamin B2 supplementation on migraine prophylaxis: a systematic review and meta-analysis
Meta Analysis Nutritional neuroscience 2022 PubMed DOI
B Supplementary vitamin E, selenium, cysteine and riboflavin for preventing kwashiorkor in preschool children in developing countries
Systematic Review The Cochrane database of systematic reviews 2010 PubMed DOI
B Riboflavin supplements for blood pressure lowering in adults.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B Associations of dietary vitamin B1, vitamin B2, vitamin B6, and vitamin B12 with the risk of depression: a systematic review and meta-analysis
Meta Analysis Nutrition reviews 2022 PubMed DOI
C Prophylaxis of migraine headaches with riboflavin: A systematic review
Systematic Review Journal of clinical pharmacy and therapeutics 2017 PubMed DOI
C Medium-dose riboflavin as a prophylactic agent in children with migraine: a preliminary placebo-controlled, randomised, double-blind, cross-over trial
Rct Cephalalgia : an international journal of headache 2010 PubMed DOI
C The efficacy of 2 different phakic intraocular lens implant in keratoconus as an isolated procedure or combined with collagen crosslinking and intra-stromal corneal ring segments: a systematic review and meta-analysis
Meta Analysis International ophthalmology 2023 PubMed DOI
C Epithelium-off photochemical corneal collagen cross-linkage using riboflavin and ultraviolet a for keratoconus and keratectasia: a systematic review and meta-analysis
Meta Analysis The ocular surface 2014 PubMed DOI
C Improvement of migraine symptoms with a proprietary supplement containing riboflavin, magnesium and Q10: a randomized, placebo-controlled, double-blind, multicenter trial
Rct The journal of headache and pain 2015 PubMed DOI
View all evidence for Riboflavin →
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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.