绿茶提取物 用于 雄激素性脱发
C基于3项研究，共150名参与者。3/3项研究显示积极效果。
<\/script>\n`;
},
get iframeSnippet() {
const domain = 'haircited.com';
const params = 'ingredient\u003Dgreen\u002Dtea\u002Dextract\u0026condition\u003Dandrogenetic\u002Dalopecia';
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">
C
结论
Green tea extract has very limited evidence for androgenetic alopecia — while early findings are positive, the research is too preliminary to draw meaningful conclusions.
- Only 3 studies exist, with no randomized controlled trials
- EGCG in green tea may have anti-androgenic properties relevant to pattern hair loss
- The single interventional study used a multi-ingredient serum, not green tea extract alone
- Much more research is needed before green tea extract can be recommended for hair loss
Key Study Findings
narrative review
An Overview of Commonly Used Natural Alternatives for the Treatment of Androgenetic Alopecia, with Special …
Dose: not specified
vs: Placebo
效果: None
None
open-label single-arm interventional study
n=150
8 weeks
Open-label
Real-World, Open-Label Study of the Efficacy and Safety of a Novel Serum in Androgenetic Alopecia.
Dose: twice daily application
vs: Placebo
效果: None
None
Observational Study
n=10
24 weeks
Single-blind
An Open-Label Evaluator Blinded Study of the Efficacy and Safety of a New Nutritional Supplement …
Dose: Forti5 (green tea, omega-3/6, vit D, melatonin, etc)
vs: baseline
Outcome: terminal hair count and Hair Mass Index
效果: 5.9% hair count increase, 9.5% HMI increase
0.014
研究人群: Adults with androgenetic alopecia
In Vitro
Green tea in dermatology.
Dose: None
vs: None
Outcome: hair loss
效果: None
None
研究人群: cancer patients
Key Statistics
5
研究数量
160
受试者
↑
Positive
C
等级
Referenced Papers
Clinical, cosmetic and …
2024
7 次引用
Real-World, Open-Label Study of the Efficacy and Safety of a Novel Serum in Androgenetic Alopecia.
Other
Journal of drugs …
2023
8 次引用
Journal of cosmetic …
2019
100 次引用
The Journal of …
2017
18 次引用
Green tea in dermatology.
Review
Skinmed
2012
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
常用剂量
- general:
- 250-500 mg/day (standardized to 50% EGCG)
上限： 800 mg EGCG/day
研究中使用的剂量
| 剂量 | 持续时间 | 效果 | N |
|---|---|---|---|
| not specified | -- | Positive | -- |
| twice daily application | 8 weeks | Positive | 150 |
| Forti5 (green tea, omega-3/6, vit D, melatonin, etc) | 24 weeks | Positive | 10 |
| None | -- | Positive | -- |
最佳服用时间： Between meals to minimize iron absorption interference; avoid evening doses
Safety & Side Effects
已报告的副作用
- ⚠ Liver toxicity at very high doses (rare but documented)
- ⚠ Stomach upset and nausea
- ⚠ Insomnia due to caffeine content
- ⚠ Iron absorption reduction
已知相互作用
- ● Blood thinners (EGCG may have antiplatelet properties)
- ● Iron supplements (tannins in green tea reduce iron absorption)
- ● Stimulants (additive caffeine effects)
- ● Hepatotoxic drugs (additive liver stress at high doses)
可耐受最高摄入量： 800 mg EGCG/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 绿茶提取物 help with 雄激素性脱发?
Based on 5 studies with 160 participants, there is limited but promising evidence that 绿茶提取物 may support 雄激素性脱发 management. Our evidence grade is C (Some Evidence).
How much 绿茶提取物 should I take for 雄激素性脱发?
Studies have used various dosages. A commonly studied range is 250-500 mg/day (standardized to 50% EGCG). Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of 绿茶提取物?
Reported side effects may include Liver toxicity at very high doses (rare but documented), Stomach upset and nausea, Insomnia due to caffeine content, Iron absorption reduction. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for 绿茶提取物 and 雄激素性脱发?
We rate the evidence as Grade C (Some Evidence). This rating is based on 5 peer-reviewed studies with 160 total participants. The overall direction of effect is positive.
Related Evidence
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。