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Nails & Hair

product on market Capsule Higher Nature Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 56% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Biotin, zinc, and B vitamins are supported by moderate to strong evidence for maintaining nail and hair health. Vitamin C and pantothenic acid contribute to collagen synthesis and cellular function. Overall, these ingredients are well-established in nutritional research for supporting keratin structure.

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

Label

Product Label

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

Label Data

4 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
56%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
100 mg (125% DV)
10 mg (714% DV)
7.7× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
80 mcg (160% DV)
2.7× RDA — within safe limits 27 studies (A:0, B:11)
100 mg (1667% DV)
20.0× RDA — above typical dose 2 studies — no high-quality reviews
6 mg (60% DV)
Within RDA (0.5× RDA) 263 studies (A:6, B:134)
1200 mg
Market median: 20.0mg (931 products) 234 studies (A:1, B:90)
Gamma-Linolenic Acid
40 mg
Market median: 1000.0mg (2 products)
140 mg
Market median: 108.0mg (8 products) 9 studies (A:0, B:4)

Other Ingredients

Collagen, Hydrolyzed Gelatin Silicon Dioxide Borage Oil, Powder Calcium L-Ascorbate Calcium D-Pantothenate Methylsulfonylmethane Magnesium Stearate Zinc Citrate Pyridoxine Hydrochloride D-Biotin
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Adults take 4 capsules a day at least 30 minutes before meals.

Warnings & Precautions

Allergy advice: see ingredients in bold Hydrolysed collagen (from fish)

Warning: If you are pregnant, breastfeeding, taking any medication or have a medical condition, please consult your healthcare professional before using this product.

This product has not been tested on animals.

Do not exceed recommended daily intake. Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle.

Storage: Store in a cool, dry place out of reach of children.

Formulation Notes

No artificial colours, flavours or preservatives. No yeast, added sugar or salt. Our borage oil is free from pyrrolizidine alkaloids.

Nails & Hair with zinc, biotin & collagen

Advanced formula Optimal benefit

Biotin and zinc contribute to maintenance of normal hair

With collagen, silicon and MSM

Additional Information

One month's supply

Storage: Store in a cool, dry place out of reach of children.

NRV = Nutrient Reference Value

Metadata

Product Details

UPC / SKU5 031013 103728
DSLD Entry Date2023-12-14
Product TypeOther Combinations
FormCapsule
DSLD ID304545
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
View all evidence for Vitamin C →
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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.