Testosterone Factors
85/100
This product is generally safe
- Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
- Contains proprietary blend — exact ingredient amounts not disclosed
- 43% of ingredients have research evidence
C
Label Compliance Grade
Product Label
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Safety Alerts
⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed
Label Data
1 Tablet(s)
Serving Size
90
Servings
Other Combinations
Product Type
43%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin C
100 mg
(111% DV)
2.5 mcg
(13% DV)
✅ Within RDA (0.2× RDA of 0.015 mg)
📚 604 studies (Tier A: 16, B: 251)
50 mg
(313% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg)
📚 193 studies (Tier A: 5, B: 63)
25 mg
(1471% DV)
📊 19.2× RDA — above typical dose (UL: 100 mg)
📚 113 studies (Tier A: 3, B: 35)
100 mg
(2000% DV)
📊 20.0× RDA — above typical dose
📚 1 studies — no high-quality reviews
Calcium
12 mg
(1% DV)
Proprietary Blend
510 mg
Other Ingredients
Microcrystalline Cellulose
Dicalcium Phosphate
Stearic Acid
Modified Cellulose Gum
Magnesium Stearate
Silicon Dioxide
Shellac
Povidone
Label Claims — Verification
❓
Nutrient
❓
All Other
❓
Structure/Function
All Other (99% of products)
Structure/Function (83% of products)
Nutrient (54% of products)
Target Groups
Vegetarian
Adult (18 - 50 Years)
Kosher
Women (not pregnant or lactating)
Product Information
📋 Directions for Use
DIRECTIONS: As a dietary supplement, take one (1) tablet daily. Dosage may be increased as directed by a healthcare practitioner.
⚠️ Warnings & Precautions
Double-sealed for your protection. Do not use if outer seal is broken or missing.
CAUTION: KEEP OUT OF REACH OF CHILDREN.
Not to be taken by pregnant or lactating women.
Made in a GMP facility that processes egg, fish, milk, shellfish, soy, tree nut and wheat products.
🧪 Formulation Notes
Our products contain organically grown herbs, when available.
Certified Kosher
Made in the U.S.A.
Wild yam root Asian ginseng root Pantothenic acid and more...
Additional Information
Shield Star K (Kosher) Parve
Family owned and operated.
Product Details
UPC / SKU
7 55929 31006 7
DSLD Entry Date
2023-12-14
Product Type
Other Combinations
Form
Tablet or Pill
DSLD ID
303385
Data Updated
2026-04-11
Research Evidence
371
Research Sources
54
Avg Quality Score
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 for the primary prevention of cardiovascular disease
A
Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
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