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Flex N' Joint

product on market Capsule DC Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 71% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula combines glucosamine and chondroitin sulfate, which have moderate evidence for supporting joint structure and cartilage health. Vitamin C and manganese provide essential cofactor support for connective tissue synthesis. Overall, these ingredients are widely researched for joint maintenance, though individual results may vary.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

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

Label Data

2 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
71%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
100 mg (167% DV)
4.8 mg (240% DV)
2.1× RDA — within safe limits 9 studies — no high-quality reviews
Market median: 600.0mg (79 products) 25 studies (A:0, B:6)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)

Other Ingredients

Gelatin Vegetable Magnesium Stearate
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

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.

Contains crustacean shellfish (crab & shrimp) ingredients.

Formulation Notes

Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs)

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

Fully reacted chelates, Albion process patent #4,599,152 chelazomes.

4 Vital Glucosamines Plus Chondroitin, Vitamin C, Manganese

Helps Maintain Healthy Joints and Cartilage

Gluten Free

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

Metadata

Product Details

DSLD Entry Date2022-06-16
Product TypeOther Combinations
FormCapsule
BrandDC
DSLD ID267143
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
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
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
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
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
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
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.