B-Complex

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

Product Label

📄 Open Full PDF View on NIH DSLD →
📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Safety Alerts

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

Label Data

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

Supplement Facts — Evidence Check

2.6 mg (200% DV)
✅ 2.0× RDA — within safe limits 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 2.6mg
32 mg (200% DV)
✅ 2.3× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 32mg UL 35mg
3.4 mg (200% DV)
✅ 2.6× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 3.4mg UL 100mg
200 mcg DFE (50% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 200.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 200mg UL 1.0mg
240 mcg (10000% DV)
📊 100.0× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.24mg
30 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.03 mg) 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.03mg
225 mg (41% DV)
✅ Within RDA (0.4× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 225mg UL 3500mg
100 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 100mg
Pantethine
15 mg
2.6 mg
✅ 2.2× RDA — within safe limits 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 2.6mg

Other Ingredients

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

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (48% of products) No Claim (1% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Kosher Gluten Free Dairy Free

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.

Product Details

UPC / SKU 8 48998 08215 4
DSLD Entry Date 2022-02-23
Product Type Other Combinations
Form Tablet or Pill
Brand Advanced Nutrition by Zahler
DSLD ID 259968
Data Updated 2026-04-11

Research Evidence

22 Research Sources
49 Avg Quality Score
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 Cochrane
B Riboflavin supplements for blood pressure lowering in adults.
Cochrane Review The Cochrane database of systematic reviews
PubMed DOI Cochrane
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 →

Compare Similar Products

B-2 100 mg Nature's Bounty 100
Vitamin B2 100 mg Spring Valley 100
Vitamin B2 100 mg Country Life 100
Vitamin B2 100 mg Natural Factors 100
Riboflavin 400 mg
Riboflavin 400 mg Integrative Therapeutics 100
View all Riboflavin products →
Riboflavin research & evidence Best Riboflavin rankings All Riboflavin products More from Advanced Nutrition by Zahler View on NIH DSLD →