Caffeina (uso topico) per Alopecia androgenetica
B Evidenze Almeno un trial randomizzato lo supporta, con risultati per lo più coerenti.Basato su 9 studi (1 RCT) con 62 partecipanti totali. 8/9 studi mostrano effetti positivi.
<\/script>\n`;
},
get iframeSnippet() {
const domain = 'haircited.com';
const params = 'ingredient\u003Dcaffeine\u002Dtopical\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">
B
In sintesi
Topical caffeine shows promising early evidence for supporting hair growth in androgenetic alopecia, but the research base is still small and more large-scale human trials are needed.
- 8 out of 9 studies report positive effects on hair growth
- Caffeine may work by counteracting DHT's negative effects on hair follicles
- One RCT showed improved hair density with a caffeine-containing topical product
- The total participant pool is very small (62 people), limiting the strength of conclusions
Key Study Findings
review
Single-blind
Do Non-Prescription Products Help in Managing Androgenic Alopecia?
Dose: Various non-prescription agents: procyanidin, cetirizine, caffeine, Oryza sativa bran, pumpkin seed
vs: Placebo
Effetto: Considerable improvements in one or more parameters across 13 included studies
None
Review
A Canadian Consensus on Androgenetic Alopecia: Approach and Management.
Dose: None
vs: Placebo
Effetto: None
None
laboratory/in vitro
26 weeks
Personalized Compounded Hair Loss Treatments: A Compatibility Assessment of the TrichoConcept™ Vehicle Line.
Dose: F1: biotin 0.5%, caffeine 2.0%, niacinamide 2.0%; F2: finasteride 0.1%, minoxidil 1.0%, tretinoin 0.
vs: Placebo
Effetto: F1 and F3 stable for 180 days; F2 stable for 14 days; F4 and F5 stable for 150 days; F6/F7 stable fo
None
review
[Nutrition in improving sleep quality and fighting insomnia].
Dose: tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral
vs: Placebo
Effetto: None
None
review
Complementary and alternative supplements: a review of dermatologic effectiveness for androgenetic alopecia.
Dose: various CAMs: pumpkin seed oil, saw palmetto, melatonin extract, caffeine extract, rosemary oil
vs: Placebo
Effetto: several CAMs effective vs baseline or minoxidil with minimal side effects
None
animal experimental study
Sleep-promoting activity of amylase-treated Ashwagandha (Withania somnifera L. Dunal) root extract via GABA receptors.
Dose: dose-dependent (specific doses not reported in abstract)
vs: Placebo
Effetto: None
None
Key Statistics
9
Studi
62
Partecipanti
↑
Positive
B
Grado
Referenced Papers
Journal of cutaneous …
2025
2 citazioni
Skin appendage disorders
2025
1 citazioni
International journal of …
2025
Nutricion hospitalaria
2025
Proceedings (Baylor University. …
2024
14 citazioni
Journal of food …
2023
17 citazioni
Dermatologic therapy
2022
41 citazioni
Journal of cosmetic …
2022
11 citazioni
Journal of drugs …
2014
26 citazioni
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Dosaggi di uso comune
- topical:
- 0.2% caffeine shampoo or serum
Limite massimo: Topical only
Dosaggi studiati nella ricerca
| Dosaggio | Durata | Effetto | N |
|---|---|---|---|
| Various non-prescription agents: procyanidin, cetirizine, caffeine, Oryza sativa bran, pumpkin seed | -- | Positive | -- |
| None | -- | Positive | -- |
| F1: biotin 0.5%, caffeine 2.0%, niacinamide 2.0%; F2: finasteride 0.1%, minoxidil 1.0%, tretinoin 0. | 26 weeks | Positive | -- |
| tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral | -- | Positive | -- |
| various CAMs: pumpkin seed oil, saw palmetto, melatonin extract, caffeine extract, rosemary oil | -- | Positive | -- |
| dose-dependent (specific doses not reported in abstract) | -- | Positive | -- |
| None | -- | Positive | -- |
| foam applied twice daily containing nicotinic acid hexyl ester, polyphenols, zinc, glycine, and caff | 26 weeks | Positive | 62 |
Momento migliore per l'assunzione: Apply shampoo or serum to scalp, leave on for 2 minutes before rinsing
Safety & Side Effects
Effetti collaterali segnalati
- ⚠ Scalp irritation or dryness
- ⚠ Minimal systemic absorption (low risk of systemic effects)
- ⚠ Contact sensitization (rare)
Interazioni note
- ● Minoxidil (may be used in combination; no significant interaction)
- ● Other topical scalp products (apply at separate times)
Livello di assunzione massimo tollerabile: Topical only
Consultare sempre il proprio medico prima di iniziare qualsiasi integratore.Consultate sempre il vostro medico prima di iniziare qualsiasi integratore.
Frequently Asked Questions
Does Caffeina (uso topico) help with Alopecia androgenetica?
Based on 9 studies with 62 participants, there is moderate evidence from clinical studies that Caffeina (uso topico) may support Alopecia androgenetica management. Our evidence grade is B (Good Evidence).
How much Caffeina (uso topico) should I take for Alopecia androgenetica?
Studies have used various dosages. A commonly studied range is 0.2% caffeine shampoo or serum. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Caffeina (uso topico)?
Reported side effects may include Scalp irritation or dryness, Minimal systemic absorption (low risk of systemic effects), Contact sensitization (rare). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Caffeina (uso topico) and Alopecia androgenetica?
We rate the evidence as Grade B (Good Evidence). This rating is based on 9 peer-reviewed studies with 62 total participants. The overall direction of effect is positive.
Related Evidence
Altri ingredienti per Alopecia androgenetica
References
- [1] Ian Landells et al.. J Cutan Med Surg. 2025. A Canadian Consensus on Androgenetic Alopecia: Approach and Management. doi:10.1177/12034754251368849 PubMed
- [2] Aditya K Gupta et al.. Skin Appendage Disord. 2025. Do Non-Prescription Products Help in Managing Androgenic Alopecia? doi:10.1159/000542880 PubMed
- [3] Carolina Schettino Kegele et al.. Int J Pharm Compd. 2025. Personalized Compounded Hair Loss Treatments: A Compatibility Assessment of the TrichoConcept™ Vehicle Line. PubMed
- [4] Rosa M Ortega et al.. Nutr Hosp. 2025. [Nutrition in improving sleep quality and fighting insomnia]. doi:10.20960/nh.06090 PubMed
- [5] Promise Ufomadu. Proc (Bayl Univ Med Cent). 2024. Complementary and alternative supplements: a review of dermatologic effectiveness for androgenetic alopecia. doi:10.1080/08998280.2023.2263829 PubMed
- [6] Chun Woong Park et al.. J Food Drug Anal. 2023. Sleep-promoting activity of amylase-treated Ashwagandha (Withania somnifera L. Dunal) root extract via GABA receptors. doi:10.38212/2224-6614.3456 PubMed
- [7] Aditya K Gupta et al.. Dermatol Ther. 2022. Natural products for male androgenetic alopecia. doi:10.1111/dth.15323 PubMed
- [8] Julia Welzel et al.. J Cosmet Dermatol. 2022. Reduction of telogen rate and increase of hair density in androgenetic alopecia by a cosmetic product: Results of a randomized, … doi:10.1111/jocd.14158 PubMed
- [9] Shannon Famenini et al.. J Drugs Dermatol. 2014. Evidence for supplemental treatments in androgenetic alopecia. PubMed
Avvertenza FDA: Queste affermazioni non sono state valutate dalla Food and Drug Administration. I prodotti e le informazioni presenti su questo sito web non sono destinati a diagnosticare, trattare, curare o prevenire alcuna malattia. I gradi di evidenza presentati si basano sulla nostra analisi della ricerca pubblicata e sottoposta a revisione paritaria e non costituiscono consulenza medica. Consultate sempre il vostro medico prima di iniziare qualsiasi regime di integrazione.