Keratin Hair & Nails with Biotin

product on market Capsule Reserveage Beauty 🟢 Safety: 100/100
Brand: Reserveage Beauty
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 71% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
71% Evidence Coverage

Supplement Facts — Evidence Check

18 mg NE (113% DV)
✅ 1.3× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 18mg UL 35mg
2 mg (118% DV)
✅ 1.5× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 2mg UL 100mg
300 mcg (1000% DV)
📊 10.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.3mg
14 mg (280% DV)
✅ 2.8× RDA — within safe limits 📚 1 studies — no high-quality reviews
RDA 5mg This product: 14mg
15 mg (136% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
1.7 mg (189% DV)
✅ 1.9× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 1.7mg UL 10mg
Cynatine HNS
500 mg

Other Ingredients

Rice Flour Gelatin Silica

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (100% of products) Structure/Function (91% of products) Nutrient (57% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take 2 capsules daily to set the tone for a beautifully healthy day. The product can be taken on an empty stomach, with food or as recommended by your healthcare practitioner.

⚠️ Warnings & Precautions

Warning: Keep out of reach of children and pets.

Please consult your healthcare professional before taking this product, especially if you are pregnant, nursing, on medication or under a doctor's care.

Do not use if outer seal is broken or missing.

🧪 Formulation Notes

Reserveage Keratin Hair & Nails with Biotin creates a powerful, body-ready keratin with unique bioavailability, providing 18 amino acids including cysteine. Along with biotin it contains other B-complex nutrients, and vital minerals copper & zinc.

Gluten free

Strengthens and nourishes hair & nails

Additional Information

Brand new look

Best stored tightly closed in a cool, dry place.

Product Details

UPC / SKU 8 35552 00011 2
DSLD Entry Date 2025-02-23
Product Type Other Combinations
Form Capsule
Brand Reserveage Beauty
DSLD ID 327279
Data Updated 2026-04-11

Research Evidence

31 Research Sources
53 Avg Quality Score
12 Meta Analysis
9 Systematic Review
5 Rct
2 Clinical Trial
1 Regulatory Source
1 Openfda Safety
B Pentasaccharides for the treatment of deep vein thrombosis
Meta Analysis The Cochrane database of systematic reviews 2017
PubMed DOI
B Quantitative comparison of the efficacy of clinical drug treatments for primary progressive multiple sclerosis
Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2023
PubMed DOI
B Dietary interventions for multiple sclerosis-related outcomes
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI
B Interventions for infantile seborrhoeic dermatitis (including cradle cap)
Meta Analysis The Cochrane database of systematic reviews 2019
PubMed DOI
B Effect of varicocelectomy on sperm deoxyribonucleic acid fragmentation rates in infertile men with clinical varicocele: a systematic review and meta-analysis
Meta Analysis Fertility and sterility 2021
PubMed DOI
B Effect of feeding biotin on milk production and hoof health in lactating dairy cows: a quantitative assessment
Meta Analysis Journal of dairy science 2011
PubMed DOI
B Factitious Graves' Disease Due to Biotin Immunoassay Interference-A Case and Review of the Literature
Systematic Review The Journal of clinical endocrinology and metabolism 2016
PubMed DOI
B Effect of biotin on milk performance of dairy cattle: a meta-analysis
Meta Analysis Journal of dairy science 2011
PubMed DOI
B PROVIT: Supplementary Probiotic Treatment and Vitamin B7 in Depression-A Randomized Controlled Trial
Rct Nutrients 2020
PubMed DOI
B High-dose biotin for multiple sclerosis: A systematic review and meta-analyses of randomized controlled trials
Meta Analysis Multiple sclerosis and related disorders 2021
PubMed DOI
View all evidence for Biotin →

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