Caffeina (uso topico) per Alopecia androgenetica

Basato su 9 studi (1 RCT) con 62 partecipanti totali. 8/9 studi mostrano effetti positivi.

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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

Studi

Partecipanti

↑

Positive

Grado

Referenced Papers

A Canadian Consensus on Androgenetic Alopecia: Approach and Management. Other

Journal of cutaneous … 2025 2 citazioni

Do Non-Prescription Products Help in Managing Androgenic Alopecia? Review

Skin appendage disorders 2025 1 citazioni

Personalized Compounded Hair Loss Treatments: A Compatibility Assessment of the TrichoConcept™ Vehicle Line. Other

International journal of … 2025

[Nutrition in improving sleep quality and fighting insomnia]. Review

Nutricion hospitalaria 2025

Complementary and alternative supplements: a review of dermatologic effectiveness for androgenetic alopecia. Review

Proceedings (Baylor University. … 2024 14 citazioni

Sleep-promoting activity of amylase-treated Ashwagandha (Withania somnifera L. Dunal) root extract via GABA receptors. Other

Journal of food … 2023 17 citazioni

Natural products for male androgenetic alopecia. Review

Dermatologic therapy 2022 41 citazioni

Reduction of telogen rate and increase of hair density in androgenetic alopecia by a cosmetic product: Results of a randomized, … RCT

Journal of cosmetic … 2022 11 citazioni

Evidence for supplemental treatments in androgenetic alopecia. Other

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

Minoxidil A Finasteride A Terapia PRP A Dutasteride A Acidi grassi Omega-3 A Microneedling A

Verdetto rapido

Basato su 9 studi (1 RCT) con 62 partecipanti totali. 8/9 studi mostrano effetti positivi.

Evidence Strength72%

High confidence

Analisi degli studi

RCT (1)Meta (0)Other (8)

Confronta le alternative

Scoprite come si confrontano altri ingredienti per questa condizione.

Visualizza tutti gli ingredienti per Alopecia androgenetica

Approfondimenti

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.