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SuperFlex-L

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

This product looks safe

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

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The profile consists of B-complex vitamins and selenium, which support metabolic function and cellular protection. Research evidence for these specific nutrients is generally strong, though the overall evidence coverage for this formulation is limited. The ingredient combination maintains a high safety profile.

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

Alerts

Safety Alerts

Contains proprietary blend — exact ingredient amounts not disclosed

Label

Product Label

Label for SuperFlex-L
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

20 mg (100% DV)
1.4× RDA — within safe limits 196 studies (A:5, B:63)
20 mg (1000% DV)
15.4× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
400 mcg (100% DV)
Within RDA (1.0× RDA) 226 studies (A:10, B:105)
30 mcg (500% DV)
12.5× RDA — above typical dose 139 studies (A:1, B:44)
70 mcg (100% DV)
1.3× RDA — within safe limits 173 studies (A:0, B:67)
5 mg (250% DV)
2.2× RDA — within safe limits 9 studies — no high-quality reviews
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
MSM
1500 mg
Market median: 1000.0mg (2 products)
1 mg
Market median: 3.0mg (58 products) 3 studies — no high-quality reviews
Proprietary Blend
643 mg
Horsetail
Grape
Sarsaparilla

Other Ingredients

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

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

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

Metadata

Product Details

UPC / SKU6 89076 03779 2
DSLD Entry Date2014-06-25
Product TypeOther Combinations
FormLiquid
BrandNewtonEverett
DSLD ID34711
Data Updated2026-04-11
Research

Research Evidence

241
Research Sources
55
Avg Quality
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
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
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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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.