SuperFlex-L

product on market Liquid NewtonEverett 🟢 Safety: 90/100
Brand: NewtonEverett
🟢 90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 40% of ingredients have research evidence
A Label Compliance Grade

Product Label

Label for SuperFlex-L
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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

1 Ounce(s) Serving Size
32 Servings
Other Combinations Product Type
40% Evidence Coverage

Supplement Facts — Evidence Check

20 mg (100% DV)
✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 20mg UL 35mg
20 mg (1000% DV)
📊 15.4× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 20mg UL 100mg
400 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.4mg UL 1.0mg
30 mcg (500% DV)
📊 12.5× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.03mg
70 mcg (100% DV)
✅ 1.3× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.07mg UL 0.4mg
5 mg (250% DV)
✅ 2.2× RDA — within safe limits 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 5mg UL 11mg
1500 mg
📊 Market median: 1000.0mg (1115 products) 📚 22 studies (Tier A: 0, B: 9)
This product: 1500mg
MSM
1500 mg
📊 Market median: 1000.0mg (2 products)
This product: 1500mg
1 mg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 1mg UL 20mg
Proprietary Blend
643 mg
Horsetail
Grape
Sarsaparilla

Other Ingredients

purified Water Vegetable Glycerin Aloe vera Natural Flavors Xanthan Gum Stevia Potassium Benzoate Potassium Sorbate

Label Claims — Verification

❓ All Other
❓ Structure/Function
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Vegetarian Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: Shake well before use. take 2 Tablespoons (1oz.) daily. May be mixed with juice. One capful=2 Tablespoons (1 oz.) Rinse after each use.

⚠️ Warnings & Precautions

Warning: If you are pregnant or lactating, consult your health care professional before using this product.

KEEP OUT OF REACH OF CHILDREN.

Do not use this product if the safety seal on bottle is broken.

🧪 Formulation Notes

GLUCOSAMINE helps maintain healthy cartilage levels. Manganese and MSM provides the cofactors needed for protection of mucopolysaccharides (glycosaminoglycans), essential for joint lubrication.

Contains no artificial color or sweeteners. Contains no milk, egg, fish, Crustacean shellfish, tree nuts, wheat, peanuts or soy.

VEGETARIAN LIQUID

GLUCOSAMINE 1500MG PLUS MSM 1500MG and a proprietary herb blend

Additional Information

What can SUPERFLEX-L do for you? SUPEFLEX-L combines the best of science and nature to support healthy joint function in active adults.

Our Glucosamine formula is rounded out with a blend of herbs with anti-inflammatory properties.

JOINT CARE FORMULA

FLEXIBILITY ~COMFORT ~MOBILITY

Made in USA

Product Details

UPC / SKU 6 89076 03779 2
DSLD Entry Date 2014-06-25
Product Type Other Combinations
Form Liquid
Brand NewtonEverett
DSLD ID 34711
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
PubMed DOI Cochrane
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
PubMed DOI
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
PubMed DOI
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
PubMed DOI
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
PubMed DOI
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
PubMed DOI
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI Cochrane
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
PubMed DOI
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
PubMed DOI
View all evidence for Niacin →

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