SuperFlex-4 with Vitamin D

product on market Tablet or Pill NewtonEverett 🟢 Safety: 100/100
Brand: NewtonEverett
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

📄 Open Full PDF View on NIH DSLD →
📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

2 Tablet(s) Serving Size
75 Servings
Other Combinations Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

400 IU (50% DV)
✅ Within RDA (0.7× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.01mg UL 0.1mg
1500 mg
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 1500mg
Chrondroitin Sulfate
1200 mg
250 mg
📊 Market median: 1000.0mg (2 products)
This product: 250mg

Other Ingredients

Dicalcium Phosphate Stearic Acid silicified Microcrystalline Cellulose Cellulose Fiber Croscarmellose Sodium Vegetable Magnesium Stearate Silicon Dioxide Aqueous Clear Coat

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (70% of products) Approved Health (4% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Suggested Use: Take 2 tablets daily with a meal. Take 4-6 weeks to see results.

⚠️ Warnings & Precautions

Warning: Consult a physician before using if pregnant, nursing or on medication.

Keep out of reach of children.

Do not use this product if safety seal on the bottle is broken. Do not exceed suggested daily intake.

Contains shellfish (shrimp, crab)

🧪 Formulation Notes

SuperFlex-4 combines the best of science and nature to support healthy joint function in active adults. 1) Glucosamine helps maintain healthy cartilage levels. 2) Chondroitin is essential for joint fluid which helps support cartilage. 3) MSM helps support the development of new cells and connective tissue. 4) Vitamin D aids in the absorption of calcium, thereby helping to form and maintain strong bones.

Gluten free - Non-GMO

Joint care formula Glucosamine 1500 mg Chondroitin 1200 mg MSM 250 mg per serving

Flexibility Comfort Mobility

Additional Information

Store in a cool, dry place.

Export only

Product Details

UPC / SKU 8 18423 02776 0
DSLD Entry Date 2020-02-26
Product Type Other Combinations
Form Tablet or Pill
Brand NewtonEverett
DSLD ID 213291
Data Updated 2026-04-11

Research Evidence

872 Research Sources
53 Avg Quality Score
309 Meta Analysis
309 Clinical Trial
111 Rct
71 Systematic Review
55 Guideline
4 Cochrane Review
4 Regulatory Source
2 Other
2 Narrative Review
2 Observational
1 Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009
PubMed DOI Cochrane
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI Cochrane
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI Cochrane
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI Cochrane
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018
PubMed DOI
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011
PubMed DOI Cochrane
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023
PubMed DOI
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023
PubMed DOI
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009
PubMed DOI
View all evidence for Vitamin D →

Compare Similar Products

Vitamin D3 1,000 IU
Vitamin D3 1,000 IU FoodScience Of Vermont 100
Vitamin D-3 1,500 IU
Vitamin D-3 1,500 IU Vitabase 100
Vitamin D 400 IU Supplement
Vitamin D 400 IU Supplement Nature Made 100
Vitamin D 400 IU Supplement
Vitamin D 400 IU Supplement Nature Made 100
Vitamin D 1000 IU
Vitamin D 1000 IU Kroger 100
View all Vitamin D products →
Vitamin D research & evidence Best Vitamin D rankings All Vitamin D products More from NewtonEverett View on NIH DSLD →