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Ultra HNS

product on market Capsule Douglas Laboratories Safety: 95/100
95/100

This product looks safe

  • Folate: 333mg is 333.0× the Tolerable Upper Intake Level (1.0mg)
  • 57% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula combines zinc, biotin, and vitamin C, which are supported by moderate evidence for maintaining skin and nail integrity. It also includes Cynatine HNS, though research on this specific hydrolyzed keratin source is more limited. The profile maintains a high safety score with no significant concerns noted.

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

Alerts

Safety Alerts

Folate: 333mg is 333.0× the Tolerable Upper Intake Level (1.0mg)

Label

Product Label

Label for Ultra HNS
Open Full PDF View on NIH DSLD →
Details

Label Data

3 Vegetarian Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
57%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
250 mg (278% DV)
333 mcg DFE (83% DV)
Exceeds UL by 333.0× (UL: 1.0 mg) 226 studies (A:10, B:105)
6000 mcg (20000% DV)
200.0× RDA — above typical dose 27 studies (A:0, B:11)
25 mg (227% DV)
2.3× RDA — within safe limits 263 studies (A:6, B:134)
Cynatine HNS
500 mg
75 mg
Market median: 500.0mg (9 products) 7 studies — no high-quality reviews
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)

Other Ingredients

Hydroxypropyl Methylcellulose Dicalcium Phosphate Vegetable Stearate Microcrystalline Cellulose Silica
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Usage: As a dietary supplement, adults take 3 capsules daily or as directed by your health professional.

Warnings & Precautions

Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.

Biotin may interfere with certain blood tests. Wait at least 8 hours between biotin consumption and blood testing. Inform your health professional about all biotin-containing supplements you are taking.

Keep out of the reach of children.

Use only if safety seal is intact.

Formulation Notes

Gluten-free, Non-GMO

Strengthens hair, nails & skin

Additional Information

Store in a cool, dry place.

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our manufacturing excellence

There's science in beauty

Metadata

Product Details

UPC / SKU3 10539 03816 1
DSLD Entry Date2021-02-25
Product TypeOther Combinations
FormCapsule
DSLD ID245400
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.