비타민 B12 관련 휴지기 탈모
F총 8,121명의 참여자를 대상으로 한 13건의 연구에 근거합니다. 연구 결과는 혼재되어 있습니다.
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F
결론
Research does not clearly support vitamin B12 supplementation for telogen effluvium — while low B12 is sometimes found in hair loss patients, there is no strong evidence that supplementation helps recovery.
- Mixed results across 13 observational studies
- Some post-COVID hair loss studies measured B12 levels without finding consistent patterns
- No RCTs testing B12 supplementation for telogen effluvium
- Only worth supplementing if a blood test confirms a B12 deficiency
Key Study Findings
retrospective observational
n=113
Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases.
Dose: None
vs: Placebo
효과: None
None
Retrospective cohort
n=2851
Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience.
Dose: None
vs: Placebo
효과: Ferritin low in 46.5% of patients; iron deficiency in 29.5%
p<0.05
Cross-Sectional Study
n=108
Evaluation of the relationship of digital phototrichogram findings of patients with diffuse hair loss with …
Dose: None
vs: Placebo
효과: None
0.05
case-control study
n=180
A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, …
Dose: not applicable
vs: Placebo
효과: None
None
Case-control
n=973
Micronutrient Deficiencies and Digital Computerized Phototrichogram Analysis in Telogen Effluvium: a Retrospective Correlation Study in …
Dose: None
vs: Placebo
효과: r=0.417 (HGB and AHR in females)
p=0.008
retrospective cross-sectional study
n=467
Nonscarring scalp alopecia: Which laboratory analysis should we perform on whom?
Dose: not applicable
vs: Placebo
효과: None
0.001
Key Statistics
13
연구
8121
참여자
↔
Mixed
F
등급
Referenced Papers
Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience.
Other
Journal of cosmetic …
2025
4 인용
Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases.
Other
International journal of …
2025
Journal of cosmetic …
2024
7 인용
Northern clinics of …
2024
1 인용
Dermatology practical & …
2023
4 인용
Journal of cosmetic …
2022
22 인용
Turkish journal of …
2022
8 인용
NonScarring Diffuse Hair Loss in Women: a Clinico-Etiological Study from tertiary care center in North-West India.
Observational
Journal of cosmetic …
2019
25 인용
Journal of drugs …
2016
56 인용
Dermatology research and …
2016
26 인용
Acta dermatovenerologica Croatica …
2016
6 인용
Clinical and experimental …
2009
34 인용
Dermatologic clinics
1993
38 인용
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
일반적으로 사용되는 용량
- general:
- 2.4 mcg/day
- deficiency:
- 1,000-2,000 mcg/day
상한량: No established UL
연구에서 사용된 용량
| 용량 | 기간 | 효과 | N |
|---|---|---|---|
| None | -- | Neutral | 113 |
| None | -- | Neutral | 2851 |
| None | -- | Mixed | 108 |
| not applicable | -- | Mixed | 180 |
| None | -- | Positive | 973 |
| not applicable | -- | Mixed | 467 |
| standard replacement doses | -- | Neutral | 3028 |
| None | -- | Neutral | 100 |
권장 복용 시간: With meals; sublingual form can be taken any time
Safety & Side Effects
보고된 부작용
- ⚠ Generally well tolerated even at high doses
- ⚠ Rare allergic reactions (itching, swelling)
- ⚠ Mild diarrhea or nausea at very high doses
알려진 상호작용
- ● Metformin (reduces B12 absorption by 10-30%)
- ● Proton pump inhibitors and H2 blockers (reduce B12 absorption)
- ● Colchicine (may reduce B12 absorption)
일일 최대 섭취 허용량: No established UL
건강기능식품을 복용하기 전에 반드시 의료 전문가와 상담하십시오.
Frequently Asked Questions
Does 비타민 B12 help with 휴지기 탈모?
Based on 13 studies with 8,121 participants, there is insufficient evidence at this time that 비타민 B12 may support 휴지기 탈모 management. Our evidence grade is F (Evidence Against).
How much 비타민 B12 should I take for 휴지기 탈모?
Studies have used various dosages. A commonly studied range is 2.4 mcg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of 비타민 B12?
Reported side effects may include Generally well tolerated even at high doses, Rare allergic reactions (itching, swelling), Mild diarrhea or nausea at very 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 비타민 B12 and 휴지기 탈모?
We rate the evidence as Grade F (Evidence Against). This rating is based on 13 peer-reviewed studies with 8,121 total participants. The overall direction of effect is mixed.
Related Evidence
비타민 B12 다른 건강 상태에 대한 근거
FDA 면책 조항: 이 내용은 미국 식품의약국(FDA)의 평가를 받지 않았습니다. 이 웹사이트의 제품 및 정보는 질병의 진단, 치료, 완치 또는 예방을 목적으로 하지 않습니다. 제시된 근거 등급은 발표된 동료 심사 연구에 대한 우리의 분석에 기반하며, 의학적 조언을 구성하지 않습니다. 건강기능식품 복용을 시작하기 전에 반드시 의료 전문가와 상담하십시오.