L-半胱氨酸用于营养缺乏性脱发

基于2项研究。2/2项研究显示积极效果。

𝕏 LinkedIn

<\/script>\n

`; }, get iframeSnippet() { const domain = 'haircited.com'; const params = 'ingredient\u003Dl\u002Dcysteine\u0026condition\u003Dnutritional\u002Ddeficiency\u002Dhair\u002Dloss'; return ``; }, get activeSnippet() { return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet; }, copySnippet() { navigator.clipboard.writeText(this.activeSnippet).then(() => { this.copied = true; setTimeout(() => { this.copied = false; }, 2000); }); } }" @keydown.escape.window="open = false" @click.outside="open = false">

Embed This Widget

Style

Widget powered by . Free, no account required.

结论

L-Cysteine has a logical biological connection to hair health as a keratin building block, but there is very little clinical evidence to support its use specifically for nutritional deficiency hair loss.

Only 2 studies exist, with no human clinical trials
L-Cysteine is a key amino acid in keratin production, providing a biological rationale
Available evidence is limited to a review article and an in vitro study
Clinical trials are needed before L-Cysteine can be recommended for hair loss specifically

Key Study Findings

Review

Does Vitamin B6 Act as an Exercise Mimetic in Skeletal Muscle?

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

研究人群: Healthy adults

Key Statistics

研究数量

受试者

↔

Mixed

等级

Referenced Papers

Does Vitamin B6 Act as an Exercise Mimetic in Skeletal Muscle? Review

International journal of … 2024 5 次引用

Effects of the Usage of l-Cysteine (l-Cys) on Human Health. Review

Molecules (Basel, Switzerland) 2018 120 次引用

Dosage & Usage

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

常用剂量

hairloss:: 500-1,000 mg/day

上限： Not established

研究中使用的剂量

剂量	持续时间	效果	N
None	--	Neutral	--

最佳服用时间： On an empty stomach for better absorption, or with meals if stomach upset occurs

Safety & Side Effects

已报告的副作用

⚠ Nausea and gastrointestinal discomfort
⚠ Unpleasant sulfur-like odor
⚠ Headache
⚠ Rare: rash or allergic reaction

已知相互作用

● Nitroglycerin (NAC may enhance vasodilatory effects, causing headache and hypotension)
● Activated charcoal (reduces NAC absorption)
● Anticoagulants (NAC may have mild antiplatelet properties)

可耐受最高摄入量： Not established

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 L-半胱氨酸 help with 营养缺乏性脱发?

Based on 2 studies with 0 participants, there is preliminary evidence that needs more research that L-半胱氨酸 may support 营养缺乏性脱发 management. Our evidence grade is D (Very Early Research).

How much L-半胱氨酸 should I take for 营养缺乏性脱发?

Studies have used various dosages. A commonly studied range is 500-1,000 mg/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of L-半胱氨酸?

Reported side effects may include Nausea and gastrointestinal discomfort, Unpleasant sulfur-like odor, Headache, Rare: rash or allergic reaction. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for L-半胱氨酸 and 营养缺乏性脱发?

We rate the evidence as Grade D (Very Early Research). This rating is based on 2 peer-reviewed studies with 0 total participants. The overall direction of effect is mixed.

Related Evidence

其他成分用于营养缺乏性脱发

硒 A 生物素（Biotin） B Vitamin A D 维生素 B12 F 叶酸（Folate） F

L-半胱氨酸用于其他健康状况

休止期脱发 D

快速结论

基于2项研究。2/2项研究显示积极效果。

Evidence Strength30%

Low confidence

研究分析

RCT (0)Meta (0)Other (2)

对比替代方案

查看其他成分针对该健康状况的对比结果。

查看所有成分用于营养缺乏性脱发

了解更多

FDA 免责声明: 这些声明未经美国食品药品监督管理局（FDA）评估。本网站上的产品和信息无意用于诊断、治疗、治愈或预防任何疾病。所展示的证据等级基于我们对已发表的同行评审研究的分析，不构成医疗建议。在开始任何补充剂方案之前，请务必咨询您的医疗保健提供者。