锯棕榈 用于 女性型脱发
B基于3项研究（2项RCT），共120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\u003Dsaw\u002Dpalmetto\u0026condition\u003Dfemale\u002Dpattern\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">
B
结论
Early clinical trial evidence suggests that saw palmetto may help promote hair growth in women with pattern hair loss, but the research is still limited to a small number of studies.
- All 3 studies show positive effects, including 2 RCTs
- Improvements seen at both 90 and 180 days of use
- Only 120 total participants — small evidence base
- More research with different formulations is needed to confirm broad applicability
Key Study Findings
randomized controlled trial
n=60
26 weeks
Double-blind
The Safety and Efficacy of a Novel Saw Palmetto (Serenoa repens) Extract for Promoting Hair …
Dose: proprietary saw palmetto (Serenoa repens) bioactive fatty acid extract (SEREVELLE) daily; dose not s
vs: Placebo
效果: terminal hair count: +18.6 vs -10.1 (283% greater); vellus hair: +6.6 vs -2.1 (414% greater); hair d
<0.001 (terminal hair, density
narrative review
Addressing the Root Causes of Female Hair Loss and Non-Pharmaceutical Interventions.
Dose: None
vs: Placebo
效果: None
None
randomized controlled trial
n=60
12.9 weeks
Double-blind
The Safety and Efficacy of a Proprietary Bioactive Fatty Acids Extract From Saw Palmetto (Serenoa …
Dose: Proprietary saw palmetto (Serenoa repens) bioactive fatty acids extract, 1 oral dose daily for 90 da
vs: Placebo
效果: Active group: anterior terminal hair count p<0.0007 vs baseline; significant vs placebo anterior p<0
0.0007
Key Statistics
3
研究数量
120
受试者
↑
Positive
B
等级
Referenced Papers
Journal of cosmetic …
2026
Journal of cosmetic …
2025
1 次引用
Journal of drugs …
2025
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
常用剂量
- general:
- 320 mg/day
- hairloss:
- 320 mg/day standardized extract
上限： Not established
研究中使用的剂量
| 剂量 | 持续时间 | 效果 | N |
|---|---|---|---|
| proprietary saw palmetto (Serenoa repens) bioactive fatty acid extract (SEREVELLE) daily; dose not s | 26 weeks | Positive | 60 |
| None | -- | Positive | -- |
| Proprietary saw palmetto (Serenoa repens) bioactive fatty acids extract, 1 oral dose daily for 90 da | 12.9 weeks | Positive | 60 |
最佳服用时间： With meals to reduce gastrointestinal side effects
Safety & Side Effects
已报告的副作用
- ⚠ Mild gastrointestinal upset (nausea, diarrhea)
- ⚠ Headache
- ⚠ Dizziness
- ⚠ Rare: decreased libido
已知相互作用
- ● Anticoagulants and antiplatelet drugs (may increase bleeding risk)
- ● Oral contraceptives and hormone replacement therapy (anti-androgenic effects)
- ● Finasteride and dutasteride (additive 5-alpha-reductase inhibition)
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 锯棕榈 help with 女性型脱发?
Based on 3 studies with 120 participants, there is moderate evidence from clinical studies that 锯棕榈 may support 女性型脱发 management. Our evidence grade is B (Good Evidence).
How much 锯棕榈 should I take for 女性型脱发?
Studies have used various dosages. A commonly studied range is 320 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of 锯棕榈?
Reported side effects may include Mild gastrointestinal upset (nausea, diarrhea), Headache, Dizziness, Rare: decreased libido. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for 锯棕榈 and 女性型脱发?
We rate the evidence as Grade B (Good Evidence). This rating is based on 3 peer-reviewed studies with 120 total participants. The overall direction of effect is positive.
Related Evidence
锯棕榈 用于其他健康状况
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。