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Longer Stronger Hair & Nails

product on market Softgel Capsule Applied Nutrition Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

The product contains basic macronutrients and Vitamin A, which supports cellular growth and skin health. Research provides strong evidence for the role of Vitamin A in maintaining epithelial tissues. However, the overall evidence coverage for this specific ingredient profile is very limited.

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

Label

Product Label

Label for Longer Stronger Hair & Nails
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Liquid Soft-Gel(s)
Serving Size
30
Servings
Other Combinations
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
15 Calorie(s)
Total Fat
1 Gram(s) (1% DV)
Total Carbohydrates
1 Gram(s) (1% DV)
Protein
1 Gram(s)
Vitamin A
2252 mcg (250% DV)
Vitamin C
100 mg (111% DV)
2500 mcg (8333% DV)
83.3× RDA — above typical dose 27 studies (A:0, B:11)
Calcium
20 mg (2% DV)
15 mg (136% DV)
1.4× RDA — within safe limits 263 studies (A:6, B:134)
2 mg (222% DV)
2.2× RDA — within safe limits 37 studies (A:0, B:11)
Horsetail Herb Extract
200 mg
Gotu Kola herb extract
120 mg
Market median: 20.0mg (931 products) 234 studies (A:1, B:90)
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

Soybean Oil Gelatin Water, Purified Glycerin Beeswax Soy Lecithin Titanium Dioxide Silicon Dioxide Caramel Red Cabbage
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: (Adult) Take two (2) Liquid Soft-Gels daily.

Warnings & Precautions

Usage Warnings: Do not use if safety seal is broken. Do not exceed recommended daily intake.

Check with your doctor before using this product if you are using medication or have any medical conditions. Do not use if you may become pregnant, are pregnant or nursing.

Not intended for use by persons under 18. Keep out of reach of children.

Contains: Soy

Warning: (State of California Prop 65) This product contains an ingredient known to the State of California to cause birth defects or other reproductive harm.

Formulation Notes

Longer Stronger Hair & Nails is a nutrient-rich complex that can help you achieve a naturally vibrant & healthy-looking appearance. Revitalizing Nutrient-Rich Formula A unique blend of vitamins, minerals and botanicals to nourish the body and support the production of healthy hair, skin & nails.

3x Biotin! Biotin Silica Collagen

Additional Information

Natural beauty: More than just skin deep! Even the finest shampoo and conditioner won't fix hair that's starving for nutrients; and expensive nail polish will only hide dull, brittle nails. That's because long, radiant hair and strong, healthy nails start from within.

Store in a cool, dry place.

Metadata

Product Details

DSLD Entry Date2025-02-23
Product TypeOther Combinations
FormSoftgel Capsule
BrandApplied Nutrition
DSLD ID323147
Data Updated2026-04-11
Research

Research Evidence

337
Research Sources
54
Avg Quality
161
Meta Analysis
68
Systematic Review
51
Rct
48
Clinical Trial
2
Other
2
Regulatory Source
1
Narrative Review
1
Cochrane Review
1
Guideline
1
Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011 PubMed DOI
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019 PubMed DOI
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016 PubMed DOI
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023 PubMed DOI
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
View all evidence for Vitamin A →
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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.