🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 46% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Vcap(s) Serving Size
30 Servings
Other Combinations Product Type
46% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
150 mg (250% DV)
20 IU (5% DV)
📊 Market median: 0.03mg (3448 products) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.0005mg UL 0.1mg
5 mg (33% DV)
✅ Within RDA (0.5× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 5mg UL 40mg
10 mg (500% DV)
📊 4.3× RDA — above typical dose (UL: 11 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 10mg UL 11mg
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 1500mg
📊 Market median: 600.0mg (79 products) 📚 24 studies (Tier A: 0, B: 6)
This product: 500mg
Cetyl Myristoleate
300 mg
📊 Market median: 1000.0mg (2 products)
This product: 300mg
📊 Market median: 20.0mg (931 products) 📚 233 studies (Tier A: 1, B: 90)
This product: 200mg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 5mg UL 20mg
BioPerine
5 mg

Other Ingredients

Silicon Dioxide L-Leucine Vegetable Capsules

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Suggested use: As a dietary supplement, for best results take 4 capsules with a meal. May take 2 capsules twice daily with morning and evening meals if preferred. Do not exceed 4 capsules in a 24-hour period.

⚠️ Warnings & Precautions

Warning: Consult with a physician prior to use if you have a medical condition.

Don't use if pregnant or lactating.

Keep out of reach of children.

🧪 Formulation Notes

About Elbow Grease Elbow Grease is a complete repair and restore joint health formula that provides you with several clinically studied ingredients proven to help the hardest workers in the gym with optimal joint health!

Joint repair and restore

BioPerine OptiMSm BioCell Collagen

Additional Information

Keep container tightly closed in a cool, dry and dark place.

Product Details

UPC / SKU 7 53577 01745 1
DSLD Entry Date 2021-10-22
Product Type Other Combinations
Form Capsule
DSLD ID 254694
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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