Flex N' Joint

product on market Capsule Dee Cee Laboratories 🟢 Safety: 100/100
Brand: Dee Cee Laboratories
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 57% of ingredients have research evidence
A Label Compliance Grade

Product Label

Label for Flex N' Joint
📄 Open Full PDF View on NIH DSLD →
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Label Data

2 Capsule(s) Serving Size
60 Servings
Other Combinations Product Type
57% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
100 mg (167% DV)
4.8 mg (240% DV)
✅ 2.1× RDA — within safe limits 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 4.8mg UL 11mg
Chondriotin Sulfate
430 mg
430 mg
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 430mg
430 mg
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 430mg
430 mg
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 430mg
100 mg
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 100mg

Other Ingredients

Gelatin Vegetable Magnesium Stearate

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

Directions: As a dietary supplement, take 2 capsules twice daily, morning and evening.

⚠️ Warnings & Precautions

Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.

Caution: If you are pregnant or nursing do not take this product.

Keep out of reach of children.

Contains crustacean shellfish (crab & shrimp) ingredients.

🧪 Formulation Notes

FDA Registered Facility (Reg. #1023013) Mfg. Under Good Manufacturing Practices (GMPs)

Conforms to USP <2091> for weight. Meets USP <2040> disintegration. USP <2091> and <2040> guarantee maximum bioavailability.

4 Vital Glucosamines Plus Chondroitin, Vitamin C, Manganese

Helps Promote Cartilage Regeneration and Healthy Joints

Made in USA

Additional Information

Keep tightly closed. Store at room temperature: 59 degrees-86 degrees F (15 degrees to 30 degrees C).

Quali Pure

Product Details

DSLD Entry Date 2022-06-16
Product Type Other Combinations
Form Capsule
Brand Dee Cee Laboratories
DSLD ID 267136
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
PubMed DOI Cochrane
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
PubMed DOI Cochrane
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI Cochrane
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI Cochrane
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI Cochrane
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
PubMed DOI Cochrane
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
PubMed DOI
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
PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
PubMed DOI
View all evidence for Vitamin C →

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