🟢 97/100

This product looks safe

  • Vitamin B3: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)
  • 77% of ingredients have research evidence
C Label Compliance Grade

Product Label

📸

Have a supplement label? Find it here.

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

Safety Alerts

⚠️ Vitamin B3: 150mg is 4.3× the Tolerable Upper Intake Level (35mg)

Label Data

1 Tablet(s) Serving Size
Other Combinations Product Type
77% Evidence Coverage

Supplement Facts — Evidence Check

25 mg (1667% DV)
📊 20.8× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 25mg
25 mg (1471% DV)
📊 19.2× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 25mg
150 mg (750% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 4.3× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 150mg UL 35mg
25 mg (1250% DV)
📊 19.2× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 25mg UL 100mg
200 mcg (50% DV)
✅ Within RDA (0.5× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.2mg UL 1.0mg
50 mcg (833% DV)
📊 20.8× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.05mg
200 mcg (67% DV)
📊 6.7× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.2mg
50 mg (500% DV)
📊 10.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 50mg
Calcium
46 mg (5% DV)
36 mg (4% DV)
✅ Within RDA (0.1× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 36mg UL 4000mg
25 mg
📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 25mg UL 3500mg
25 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 25mg
📊 Market median: 500.0mg (9 products)
This product: 15mg

Other Ingredients

Microcrystalline Cellulose Stearic Acid Magnesium Stearate Silicon Dioxide Croscarmellose Sodium aqueous film coating

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (78% of products) Nutrient (22% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: As a dietary supplement for adults, 1 tablet once daily or as directed by a health professional.

⚠️ Warnings & Precautions

Keep out of reach of children.

WARNING: Consult a healthcare professional before taking this product if you are pregnant or nursing.

Additional Information

Store at room temperature. Protect from light.

Made in USA

103a REF 1111

Contributes to nervous system health

VITAMIN FORMULAS EST 1960

Product Details

UPC / SKU 7 16563 10301 9
DSLD Entry Date 2012-04-26
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 8442
Data Updated 2026-04-11

Research Evidence

32 Research Sources
50 Avg Quality Score
19 Rct
7 Meta Analysis
3 Clinical Trial
2 Other
1 Systematic Review
B Greater Choline-Containing Compounds and Myo-inositol in Treatment-Resistant Versus Responsive Schizophrenia: A 1H-Magnetic Resonance Spectroscopy Meta-analysis
Meta Analysis Biological psychiatry. Cognitive neuroscience and neuroimaging 2024
B Inositol for Polycystic Ovary Syndrome: A Systematic Review and Meta-analysis to Inform the 2023 Update of the International Evidence-based PCOS Guidelines
Meta Analysis The Journal of clinical endocrinology and metabolism 2024
B Antenatal dietary supplementation with myo-inositol for preventing gestational diabetes
Meta Analysis The Cochrane database of systematic reviews 2023
B Effectiveness of inositol, metformin and their combination in women with PCOS undergoing assisted reproduction: systematic review and meta-analysis
Meta Analysis Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology 2022
B Effects of myo-inositol vs. metformin on hormonal and metabolic parameters in women with PCOS: a meta-analysis
Meta Analysis Irish journal of medical science 2023
B Inositol for subfertile women with polycystic ovary syndrome
Meta Analysis The Cochrane database of systematic reviews 2018
B Treatment of lean PCOS teenagers: a follow-up comparison between Myo-Inositol and oral contraceptives
Rct European review for medical and pharmacological sciences 2021
B The 40:1 myo-inositol/D-chiro-inositol plasma ratio is able to restore ovulation in PCOS patients: comparison with other ratios
Rct European review for medical and pharmacological sciences 2019
C Investigating the effect of combined use of selenium and Myo-inositol supplements on thyroid function and autoimmune characteristics in thyroid disorders: a systematic review and meta-analysis
Meta Analysis Expert review of endocrinology & metabolism 2024
C Myo-inositol supplementation to prevent gestational diabetes in overweight non-obese women: bioelectrical impedance analysis, metabolic aspects, obstetric and neonatal outcomes - a randomized and open-label, placebo-controlled clinical trial.
Rct International journal of food sciences and nutrition
View all evidence for Inositol →

Compare Similar Products

View all Inositol products →