🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 40% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Extended Release Tablet(s) Serving Size
90 Servings
Other Combinations Product Type
40% Evidence Coverage

Supplement Facts — Evidence Check

400 mg (23500% DV)
📊 307.7× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 400mg
360 mg (90% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 360mg
Butterbur
150 mg
100 mg
📊 Market median: 380.0mg (120 products) 📚 8 studies — no high-quality reviews
This product: 100mg
Organic Whole Food Blend
75 mg

Other Ingredients

Cellulose Hydroxypropyl Methycellulose Stearic Acid Magnesium Stearate Silica Pharmaceutical Glaze

Label Claims — Verification

All Other
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) Gluten Free

Product Information

🧪 Formulation Notes

Soothing brain support

With standardized butterbur and feverfew, riboflavin and magnesium in an organic, whole food blend

PA free

Vegetarian

Gluten free

Manufactured in an independently certified GMP facility

Additional Information

Formulated by doctors, recommended by medical professionals

Product Details

DSLD Entry Date 2020-11-21
Product Type Other Combinations
Form Tablet or Pill
Brand Dr. Knowles
DSLD ID 240210
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
B Effect of Vitamin B2 supplementation on migraine prophylaxis: a systematic review and meta-analysis
Meta Analysis Nutritional neuroscience 2022
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
B Riboflavin supplements for blood pressure lowering in adults.
Cochrane Review The Cochrane database of systematic reviews
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
C Prophylaxis of migraine headaches with riboflavin: A systematic review
Systematic Review Journal of clinical pharmacy and therapeutics 2017
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
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
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
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
View all evidence for Riboflavin →

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