Vitamin A ： Scalp Inflammation (Folliculitis & Dermatitis)
D 研究 予備的な研究（実験室研究、症例報告）のみが存在します。Based on 4 studies with 1 total participants. 3/4 studies show positive effects.
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D
結論
Based on 4 studies with 1 total participants. 3/4 studies show positive effects.
Key Study Findings
Review
Vitamins A, B, C, and D: A Short Review for the Dermatologist.
Dose: None
vs: control
Outcome: None
効果: None
None
対象集団: patients with uncombable hair syndrome
Case report
n=1
20 weeks
Combined Diet and Supplementation Therapy Resolves Alopecia Areata in a Paediatric Patient: A Case Study.
Dose: Multi-nutrient supplement, zinc sulfate, fish oil with vitamin D; diet rich in vitamins A and D, zin
vs: Placebo
効果: Complete remission within 5 months
None
narrative_review
Nutrition and skin: Kids are not just little people.
Dose: None
vs: Placebo
効果: narrative review; discusses role of nutrition from prenatal period on skin immune responses; highlig
not_applicable
Review
Retinoids putting the "a" in alopecia.
Dose: None
vs: None
Outcome: Vitamin A role in alopecia development
効果: None
None
対象集団: Patients with alopecia (theoretical)
Key Statistics
4
研究数
1
参加者数
↑
Positive
D
グレード
Referenced Papers
Alternative therapies in …
2021
10 件の引用
Combined Diet and Supplementation Therapy Resolves Alopecia Areata in a Paediatric Patient: A Case Study.
Case Report
Cureus
2020
5 件の引用
Clinics in dermatology
2016
19 件の引用
The Journal of …
2013
10 件の引用
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
一般的な使用量
- general:
- 700-900 mcg RAE/day (2,300-3,000 IU)
上限量： 3,000 mcg RAE/day (10,000 IU preformed vitamin A)
研究で検討された用量
| 用量 | 期間 | 効果 | N |
|---|---|---|---|
| None | -- | Positive | -- |
| Multi-nutrient supplement, zinc sulfate, fish oil with vitamin D; diet rich in vitamins A and D, zin | 20 weeks | Positive | 1 |
| None | -- | Positive | -- |
| None | -- | Negative | -- |
推奨摂取タイミング： With a fat-containing meal; consult your healthcare provider about appropriate dosage
Safety & Side Effects
報告されている副作用
- ⚠ Hair loss at excessive doses (hypervitaminosis A)
- ⚠ Dry skin and lips
- ⚠ Headache and nausea at high doses
- ⚠ Teratogenicity — contraindicated in pregnancy at high doses
既知の相互作用
- ● Retinoid medications (isotretinoin, tretinoin — additive toxicity risk)
- ● Tetracycline antibiotics (increased intracranial pressure risk)
- ● Anticoagulants (high-dose vitamin A may increase bleeding risk)
- ● Hepatotoxic drugs (additive liver stress at high doses)
耐容上限摂取量： 3,000 mcg RAE/day (10,000 IU preformed vitamin A)
サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。
Frequently Asked Questions
Does Vitamin A help with Scalp Inflammation (Folliculitis & Dermatitis)?
Based on 4 studies with 1 participants, there is preliminary evidence that needs more research that Vitamin A may support Scalp Inflammation (Folliculitis & Dermatitis) management. Our evidence grade is D (Very Early Research).
How much Vitamin A should I take for Scalp Inflammation (Folliculitis & Dermatitis)?
Studies have used various dosages. A commonly studied range is 700-900 mcg RAE/day (2,300-3,000 IU). Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Vitamin A?
Reported side effects may include Hair loss at excessive doses (hypervitaminosis A), Dry skin and lips, Headache and nausea at high doses, Teratogenicity — contraindicated in pregnancy at high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Vitamin A and Scalp Inflammation (Folliculitis & Dermatitis)?
We rate the evidence as Grade D (Very Early Research). This rating is based on 4 peer-reviewed studies with 1 total participants. The overall direction of effect is positive.
Related Evidence
に関する他の成分： Scalp Inflammation (Folliculitis & Dermatitis)
Vitamin A 他の症状・状態について
References
- [1] Kathleen M Coerdt et al.. Altern Ther Health Med. 2021. Vitamins A, B, C, and D: A Short Review for the Dermatologist. PubMed
- [2] Cliff J Harvey. Cureus. 2020. Combined Diet and Supplementation Therapy Resolves Alopecia Areata in a Paediatric Patient: A Case Study. doi:10.7759/cureus.11371 PubMed
- [3] Meagen McCusker et al.. Clin Dermatol. 2016. Nutrition and skin: Kids are not just little people. doi:10.1016/j.clindermatol.2016.07.004 PubMed
- [4] Phillip D Holler et al.. J Invest Dermatol. 2013. Retinoids putting the "a" in alopecia. doi:10.1038/jid.2012.441 PubMed
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