G.C. Flex
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 75% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
3 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
75%
Evidence Coverage
Supplement Facts — Evidence Check
Sodium
84 mg
(4% DV)
1200 mg
📊 Market median: 600.0mg (79 products)
📚 24 studies (Tier A: 0, B: 6)
1500 mg
📊 Market median: 1000.0mg (1115 products)
📚 22 studies (Tier A: 0, B: 9)
📊 Market median: 375.0mg (171 products)
📚 30 studies (Tier A: 1, B: 14)
Other Ingredients
Gelatin
Vegetable Magnesium Stearate
Label Claims — Verification
❓
All Other
❓
Structure/Function
All Other (100% of products)
Structure/Function (84% of products)
Nutrient (8% of products)
Target Groups
Adult (18 - 50 Years)
Product Information
📋 Directions for Use
Suggested Use: As a dietary supplement, take 3 capsules daily with a meal or take as directed by your health care professional. Optimally, for the first 15 days, double the dose for maximum benefits. Best results are obtained with daily use.
⚠️ Warnings & Precautions
Contains crustacean shellfish (Shrimp, crab, lobster).
🧪 Formulation Notes
Glucosamine & chondroitin 5-Loxin joint formula
Supports healthy joints and cartilage Supports joint flexibility Supports healthy muscles and connective tissues
Additional Information
Intelligent nutritional solutions
Premium grade supplements Since 1993
Product Details
DSLD Entry Date
2021-01-22
Product Type
Other Combinations
Form
Capsule
Brand
Purity Products
DSLD ID
243751
Data Updated
2026-04-11
Research Evidence
33
Research Sources
48
Avg Quality Score
21
Rct
10
Meta Analysis
2
Clinical Trial
B
Efficacy and safety of the combination of glucosamine and chondroitin for knee osteoarthritis: a systematic review and meta-analysis
B
Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis
B
Clinical Efficacy and Safety of Chondroitin Combined with Glucosamine in the Treatment of Knee Osteoarthritis: A Systematic Review and Meta-Analysis
B
Combined chondroitin sulfate and glucosamine for painful knee osteoarthritis: a multicentre, randomised, double-blind, non-inferiority trial versus celecoxib
B
Effectiveness and safety of glucosamine and chondroitin for the treatment of osteoarthritis: a meta-analysis of randomized controlled trials
C
Update on the role of pharmaceutical-grade chondroitin sulfate in the symptomatic management of knee osteoarthritis
C
Evaluation of efficacy and safety of glucosamine sulfate, chondroitin sulfate, and their combination regimen in the management of knee osteoarthritis: a systematic review and meta-analysis
C
Does incorporating collagen and chondroitin sulfate matrix in implant surfaces enhance osseointegration? A systematic review and meta-analysis
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