Vitamin A ： Scalp Inflammation (Folliculitis & Dermatitis)

Based on 4 studies with 1 total participants. 3/4 studies show positive effects.

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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

研究数

参加者数

↑

Positive

グレード

Referenced Papers

Vitamins A, B, C, and D: A Short Review for the Dermatologist. Review

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

Nutrition and skin: Kids are not just little people. Review

Clinics in dermatology 2016 19 件の引用

Retinoids putting the "a" in alopecia. Other

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)

Curcumin C Astaxanthin D

Vitamin A 他の症状・状態について

栄養不足による脱毛症 D

総合評価

Based on 4 studies with 1 total participants. 3/4 studies show positive effects.

Evidence Strength30%

Low confidence

研究の内訳

RCT (0)Meta (0)Other (4)

代替成分との比較

この症状に対する他の成分との比較をご覧ください。

に関するすべての成分を見る： Scalp Inflammation (Folliculitis & Dermatitis)

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FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。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。