🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 27% of ingredients have research evidence
B Label Compliance Grade

Product Label

📸

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Label Data

2 Tablet(s) Serving Size
60 Servings
Other Combinations Product Type
27% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
120 mg (200% DV)
40 IU (133% DV)
✅ 1.8× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 26.8mg UL 1000mg
Calcium
300 mg (30% DV)
25 mg (6% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 25mg
Gelatin
300 mg
300 mg
📊 Market median: 108.0mg (8 products) 📚 9 studies (Tier A: 0, B: 4)
This product: 300mg
MSM
200 mg
📊 Market median: 1000.0mg (2 products)
This product: 200mg
100 mg
📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews
This product: 100mg
L-Cysteine
100 mg
L-Proline
50 mg
100 mg
📊 Market median: 200.0mg (107 products)
Median 200.0mg This product: 100mg

Other Ingredients

Cellulose Croscarmellose Stearic Acid Magnesium Stearate Silica

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: As a dietary supplement take 2 tablets 1-2 times daily.

⚠️ Warnings & Precautions

KEEP OUT OF THE REACH OF CHILDREN.

DO NOT USE IF SAFETY SEAL UNDER CAP IS BROKEN OR MISSING.

🧪 Formulation Notes

with MSM and Silica

Contains No: gluten, sugar, salt, starch, yeast, corn, soy, wheat, lactose, milk, egg, fish products, artificial coloring, flavoring, or preservatives.

Additional Information

Store in a cool dry place. Do not refrigerate. Please recycle.

GMP Compliant Manufacturing

MADE IN THE USA

Nutritional Support for Strong, Healthy Nails†

SPECIALTY FORMULAS

Product Details

UPC / SKU 8 12720 01622 9
DSLD Entry Date 2011-11-25
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 1786
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 in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

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