铁用于休止期脱发

Q: Does 铁 help with 休止期脱发?

Based on 62 studies with 11,072 participants, there is moderate evidence from clinical studies that 铁 may support 休止期脱发 management. Our evidence grade is B (Good Evidence).

Q: How much 铁 should I take for 休止期脱发?

Studies have used various dosages. A commonly studied range is 18 mg/day (women). Always consult your healthcare provider before starting any supplement regimen.

Q: Are there side effects of 铁?

Reported side effects may include Constipation (most common), Nausea and stomach cramps, Dark or black stools, Iron overload with excessive supplementation (hemochromatosis risk). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

Q: How strong is the evidence for 铁 and 休止期脱发?

We rate the evidence as Grade B (Good Evidence). This rating is based on 62 peer-reviewed studies with 11,072 total participants. The overall direction of effect is mixed.

基于56项研究（2项RCT），共11,067名参与者。各研究结果不一。

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结论

Iron may support recovery from telogen effluvium, particularly when low ferritin levels are confirmed, but the evidence is mixed and routine supplementation without testing is not well-supported.

56 studies provide substantial evidence, though results are mixed across the research
Lower ferritin levels are commonly found in patients with telogen effluvium
One study found iron supplementation improved satisfaction even in patients without overtly low ferritin
Blood testing for ferritin and iron levels is recommended before starting supplementation

Key Study Findings

Review

Androgenetic Alopecia in Women: A Narrative Review of Pathophysiology, Clinical Evaluation, and Treatments.

Dose: None vs: None Outcome: None 效果: None None

研究人群: women with androgenetic alopecia (female pattern hair loss)

scoping_review n=16

A Scoping Review of Exosome Delivery Applications in Hair Loss.

Dose: variable; exosomes predominantly from mesenchymal stem cells (MSCs) vs: Placebo 效果: None None

Review

Research progress in the treatment of non-scarring alopecia: mechanism and treatment.

Dose: None vs: Placebo 效果: None None

Retrospective cohort n=2851

Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience.

Dose: None vs: Placebo 效果: Ferritin low in 46.5% of patients; iron deficiency in 29.5% p<0.05

review

The role of microtrauma in hair regrowth and regeneration in non-scarring alopecia.

Dose: Various microtrauma procedures: microneedling, fractional/non-fractional lasers, contact immunothera vs: Placebo 效果: Positive outcomes reported for hair density and thickness with microneedling, lasers, LLLT, and PRP None

Review

Comprehensive Review on Hair Loss and Restorative Techniques: Advances in Diagnostic, Artistry, and Surgical Innovation.

Dose: None vs: Placebo 效果: None None

Key Statistics

研究数量

11072

受试者

↔

Mixed

等级

Referenced Papers

Androgenetic Alopecia in Women: A Narrative Review of Pathophysiology, Clinical Evaluation, and Treatments. Review

American journal of … 2026

Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy. Other

Obesity surgery 2026

A Scoping Review of Exosome Delivery Applications in Hair Loss. Review

Cureus 2025 7 次引用

Retrospective Review of 2851 Female Patients With Telogen Effluvium: A Single-Center Experience. Other

Journal of cosmetic … 2025 4 次引用

Safety First: A Comprehensive Review of Nutritional Supplements for Hair Loss in Breast Cancer Patients. Review

Nutrients 2025 2 次引用

Comprehensive Review on Hair Loss and Restorative Techniques: Advances in Diagnostic, Artistry, and Surgical Innovation. Review

Cureus 2025 2 次引用

Technological Advances in Anti-hair Loss and Hair Regrowth Cosmeceuticals: Mechanistic Breakthroughs and Industrial Prospects Driven by Multidisciplinary Collaborative Innovation. Review

Aesthetic plastic surgery 2025 2 次引用

Research progress in the treatment of non-scarring alopecia: mechanism and treatment. Review

Frontiers in pharmacology 2025 2 次引用

The role of microtrauma in hair regrowth and regeneration in non-scarring alopecia. Review

Italian journal of … 2025

Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions. Review

Journal of drugs … 2025

Telogen Effluvium Following Coronavirus Disease-2019 Infection: A Retrospective Study of 113 Cases. Other

International journal of … 2025

Assessment of Serum Ferritin Levels in Female Patients With Telogen Effluvium. Other

Cureus 2025

The Hormonal Background of Hair Loss in Non-Scarring Alopecias. Review

Biomedicines 2024 17 次引用

A comprehensive investigation of biochemical status in patients with telogen effluvium: Analysis of Hb, ferritin, vitamin B12, vitamin D, thyroid … Other

Journal of cosmetic … 2024 7 次引用

Panax notoginseng saponins loaded W/O microemulsion for alopecia therapy with panthenol as cosurfactant to reduce skin irritation. Other

International journal of … 2024 6 次引用

Post Covid telogen effluvium: the diagnostic value of serum ferritin biomarker and the preventive value of dietary supplements. a case … Other

Archives of dermatological … 2024 5 次引用

Iron Supplementation May Improve the Patient's Level of Satisfaction in Not-Low-Ferritin Telogen Effluvium: A Real-Life Observational Study. Other

Indian journal of … 2024 4 次引用

Resveratrol-Loaded Versatile Nanovesicle for Alopecia Therapy via Comprehensive Strategies. Other

International journal of … 2024 3 次引用

Cost-effectiveness analysis of laboratory monitoring in newly diagnosed telogen effluvium patients. Other

Archives of dermatological … 2024 1 次引用

Evaluation of the relationship of digital phototrichogram findings of patients with diffuse hair loss with blood TSH, ferritin and vitamin … Other

Northern clinics of … 2024 1 次引用

Efficacy and tolerability of an oral supplement containing amino acids, iron, selenium, and marine hydrolyzed collagen in subjects with hair … RCT

Skin research and … 2023 11 次引用

Etiology, management, and outcomes of pediatric telogen effluvium: A single-center study in the United States. Other

Pediatric dermatology 2023 9 次引用

"Shedding" low yield testing for telogen effluvium: A cross-sectional study of 16,381 laboratory results from newly diagnosed patients. Other

Journal of the … 2023 5 次引用

Micronutrient Deficiencies and Digital Computerized Phototrichogram Analysis in Telogen Effluvium: a Retrospective Correlation Study in a Tertiary Medical Center. Other

Dermatology practical & … 2023 4 次引用

Oral supplementation in female telogen effluvium: a clinical and instrumental objective evidence of efficacy and tolerability of new oral cosmetic … Other

Italian journal of … 2023 3 次引用

Telogen effluvium in daily practice: Patient characteristics, laboratory parameters, and treatment modalities of 3028 patients with telogen effluvium. Other

Journal of cosmetic … 2022 22 次引用

Nonscarring scalp alopecia: Which laboratory analysis should we perform on whom? Other

Turkish journal of … 2022 8 次引用

Evaluation of MCV/RDW Ratio and Correlations With Ferritin in Telogen Effluvium Patients. Other

Dermatology practical & … 2022 6 次引用

Supplementation and hair growth: A retrospective chart review of patients with alopecia and laboratory abnormalities. Other

JAAD international 2022 6 次引用

The Association of Serum Ferritin Levels With Non-scarring Alopecia in Women. Other

Cureus 2022 3 次引用

Laboratory Testing in Telogen Effluvium. Other

Journal of drugs … 2021 3 次引用

NonScarring Diffuse Hair Loss in Women: a Clinico-Etiological Study from tertiary care center in North-West India. Observational

Journal of cosmetic … 2019 25 次引用

Female pattern hair loss: a pilot study investigating combination therapy with low-dose oral minoxidil and spironolactone. Observational

International journal of … 2018 142 次引用

Comparative evaluation between two nutritional supplements in the improvement of telogen effluvium. Other

Clinical, cosmetic and … 2018 16 次引用

Assessment of Heavy Metal and Trace Element Levels in Patients with Telogen Effluvium. Other

Indian journal of … 2018 14 次引用

Prevalence of Nutritional Deficiencies in Hair Loss among Indian Participants: Results of a Cross-sectional Study. Other

International journal of … 2017 43 次引用

Vitamin and Mineral Deficiencies in Patients With Telogen Effluvium: A Retrospective Cross-Sectional Study. Other

Journal of drugs … 2016 56 次引用

Female Pattern Hair Loss: A Retrospective Study in a Tertiary Referral Center. Other

International journal of … 2016 28 次引用

Clinicoepidemiological Observational Study of Acquired Alopecias in Females Correlating with Anemia and Thyroid Function. Other

Dermatology research and … 2016 26 次引用

Non-invasive method distinguishes chronic telogen effluvium from mild female pattern hair loss: clinicopathological correlation. Other

International journal of … 2016 6 次引用

Trichotillomania: Bizzare Patern of Hair Loss at 11-Year-old Girl. Case Report

Acta dermatovenerologica Croatica … 2016 6 次引用

Telogen Effluvium: A Review. Review

Journal of clinical … 2015 190 次引用

Selected Disorders of Skin Appendages--Acne, Alopecia, Hyperhidrosis. Review

The Medical clinics … 2015 66 次引用

A Hospital-based Study to Determine Causes of Diffuse Hair Loss in Women. Other

Journal of clinical … 2015 41 次引用

Possible Relationship between Chronic Telogen Effluvium and Changes in Lead, Cadmium, Zinc, and Iron Total Blood Levels in Females: A … Other

International journal of … 2015 18 次引用

Hair loss in women. Review

Clinical obstetrics and … 2015 9 次引用

Acute telogen effluvium onset event is associated with the presence of female androgenetic alopecia: potential therapeutic implications. Other

Dermatologic therapy 2014 13 次引用

Use of Vitamins and Minerals in the Treatment of Hair Loss: A Cross-Sectional Survey among Dermatologists in Saudi Arabia. Other

Journal of cutaneous … 2014 10 次引用

Is TrichoScan a new diagnostic method for diffuse hair loss? Other

Turkish journal of … 2014 5 次引用

Telogen effluvium as the first symptom of Crohn's disease in a child. Case Report

Annals of gastroenterology 2014 5 次引用

Serum ferritin and vitamin d in female hair loss: do they play a role? Other

Skin pharmacology and … 2013 127 次引用

Hair loss in children: common and uncommon causes; clinical and epidemiological study in jordan. Other

International journal of … 2013 37 次引用

Iron deficiency in female pattern hair loss, chronic telogen effluvium, and control groups. Other

Journal of the … 2010 94 次引用

Diffuse hair loss in an adult female: approach to diagnosis and management. Review

Indian journal of … 2009 109 次引用

[Effectiveness of the treatment plan for androgenetic alopecia]. Other

Georgian medical news 2007

The diagnosis and treatment of iron deficiency and its potential relationship to hair loss. Review

Journal of the … 2006 255 次引用

Medical treatment of noncicatricial alopecia. Review

Seminars in cutaneous … 2006 23 次引用

Dermatologic signs in patients with eating disorders. Review

American journal of … 2005 140 次引用

Chronic telogen effluvium: a study of 5 patients over 7 years. Case Report

Journal of the … 2005 64 次引用

[Androgenetic alopecia]. Review

Revue medicale de … 2004

Decreased serum ferritin is associated with alopecia in women. Other

The Journal of … 2003 222 次引用

Causes of hair loss and the developments in hair rejuvenation. Other

International journal of … 2002 95 次引用

Management of hair loss in women. Review

Dermatologic clinics 1993 38 次引用

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

常用剂量

general:: 18 mg/day (women)
deficiency:: 65-200 mg elemental iron/day

上限： 45 mg/day

研究中使用的剂量

剂量	持续时间	效果	N
None	--	Neutral	--
variable; exosomes predominantly from mesenchymal stem cells (MSCs)	--	Positive	16
None	--	Mixed	--
None	--	Neutral	2851
Various microtrauma procedures: microneedling, fractional/non-fractional lasers, contact immunothera	--	Positive	--
None	--	Positive	--
not applicable (observational; serum ferritin measured)	--	Negative	100
None	--	Mixed	--

最佳服用时间： On an empty stomach with vitamin C for best absorption; take 2 hours apart from calcium

Safety & Side Effects

已报告的副作用

⚠ Constipation (most common)
⚠ Nausea and stomach cramps
⚠ Dark or black stools
⚠ Iron overload with excessive supplementation (hemochromatosis risk)

已知相互作用

● Calcium supplements and dairy (reduce iron absorption by 50-60%)
● Proton pump inhibitors (omeprazole) and H2 blockers reduce absorption
● Tetracycline and quinolone antibiotics (mutual absorption reduction)
● Levothyroxine (iron reduces thyroid hormone absorption)

可耐受最高摄入量： 45 mg/day

在开始服用任何补充剂之前，请务必咨询您的医疗保健提供者。

Frequently Asked Questions

Does 铁 help with 休止期脱发?

Based on 62 studies with 11,072 participants, there is moderate evidence from clinical studies that 铁 may support 休止期脱发 management. Our evidence grade is B (Good Evidence).

How much 铁 should I take for 休止期脱发?

Studies have used various dosages. A commonly studied range is 18 mg/day (women). Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of 铁?

Reported side effects may include Constipation (most common), Nausea and stomach cramps, Dark or black stools, Iron overload with excessive supplementation (hemochromatosis risk). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for 铁 and 休止期脱发?

We rate the evidence as Grade B (Good Evidence). This rating is based on 62 peer-reviewed studies with 11,072 total participants. The overall direction of effect is mixed.

Related Evidence

其他成分用于休止期脱发

米诺地尔（Minoxidil） A 黑种草油 A Viviscal A 角蛋白（Keratin） B Omega-3 脂肪酸 B 叶酸（Folate） B

铁用于其他健康状况

缺铁性脱发 A 产后脱发 D

快速结论

基于56项研究（2项RCT），共11,067名参与者。各研究结果不一。

Evidence Strength72%

High confidence

研究分析

RCT (1)Meta (0)Other (61)

对比替代方案

查看其他成分针对该健康状况的对比结果。

查看所有成分用于休止期脱发

了解更多

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铁 用于 休止期脱发

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结论

Key Study Findings

Key Statistics

Referenced Papers

Dosage & Usage

常用剂量

研究中使用的剂量

Safety & Side Effects

已报告的副作用

已知相互作用

Frequently Asked Questions

Related Evidence

其他成分用于 休止期脱发

铁 用于其他健康状况

铁用于休止期脱发

其他成分用于休止期脱发

铁用于其他健康状况