Brittle Hair and Nails SyndromeBrittle Hair and Nails Syndrome
Brittle Hair and Nails Syndrome
Brittle Hair and Nails Syndrome
有病率: Affects approximately 20% of the general population
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Evidence-Ranked Ingredients
| 成分 | グレード | 研究数 | 効果の方向 | |
|---|---|---|---|---|
| Vitamin E | D | 2 | Mixed | 詳細を見る → |
| Silica (Silicon) | D | 0 | Neutral | 詳細を見る → |
About
Co-occurring brittleness of hair shafts and nail plates, often reflecting underlying micronutrient deficiencies (biotin, iron, zinc, silicon) or connective tissue fragility. Hair becomes dry, splits easily, and breaks mid-shaft.
Common Symptoms
Dry, splitting hair
Increased breakage
Brittle, peeling nails
Slow hair and nail growth
Risk Factors
- Biotin deficiency
- Iron deficiency
- Hypothyroidism
- Excessive heat styling
- Aging
Frequently Asked Questions
What supplements are studied for Brittle Hair and Nails Syndrome?
Research has examined 2 supplement ingredients for Brittle Hair and Nails Syndrome, including Vitamin E. Evidence strength varies; review individual grades for details.
How is the evidence for Brittle Hair and Nails Syndrome supplements graded?
We grade supplements on an A-F scale based on clinical study quality, consistency of results, sample sizes, and study design. Grade A indicates strong evidence from multiple clinical trials, while Grade D indicates preliminary evidence requiring further research.
How many studies on Brittle Hair and Nails Syndrome supplements have been reviewed?
Our evidence grades for Brittle Hair and Nails Syndrome are based on a total of 2 peer-reviewed studies across 2 ingredients. Studies are sourced from PubMed and include randomized controlled trials, meta-analyses, and other clinical research.
What are common symptoms of Brittle Hair and Nails Syndrome?
Common symptoms associated with Brittle Hair and Nails Syndrome include Dry, splitting hair, Increased breakage, Brittle, peeling nails, Slow hair and nail growth. If you are experiencing these symptoms, consult a healthcare professional for proper diagnosis and treatment options.
Related Conditions
共通の研究済み成分を持つ症状
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