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Keratin for Hair

product on market Capsule The Vitamin Shoppe Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 25% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Biotin and protein are commonly used to support hair structure, though evidence for their efficacy in healthy individuals is limited. Vitamin C acts as an antioxidant and supports collagen synthesis. Overall, the evidence coverage for this specific ingredient profile is very low.

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

Label

Product Label

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

Label Data

4 Capsule(s)
Serving Size
30
Servings
Botanical with Nutrients
Product Type
25%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
10 Calorie(s)
Protein
2 Gram(s) (4% DV)
Vitamin C
60 mg (67% DV)
5000 mcg (16667% DV)
166.7× RDA — above typical dose 27 studies (A:0, B:11)
Sodium
15 mg (1% DV)
Market median: 20.0mg (931 products) 234 studies (A:1, B:90)
Keratin
250 mg
Amla extract
100 mg

Other Ingredients

Gelatin Rice Extract Blend Silicon Dioxide Microcrystalline Cellulose
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: Take four (4) capsules daily, preferably with a meal.

Warnings & Precautions

Warning: Consult your healthcare provider prior to use if you are pregnant, nursing, taking any medication or have any medical conditions.

Keep out of reach of children.

Tamper evident Do not use if outer seal is broken or missing.

Formulation Notes

With biotin and collagen

Healthy hair

Gluten-free Soy-free Dairy-free Nut-free Does not contain: Gluten, sugar, artificial colors or flavors, preservatives.

Additional Information

Specialty

Store in a cool, dry place.

Quality Promise Tested & Trusted

Metadata

Product Details

UPC / SKU7 66536 04288 3
DSLD Entry Date2019-11-21
Product TypeBotanical with Nutrients
FormCapsule
BrandThe Vitamin Shoppe
DSLD ID208833
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.