Il siero per capelli giusto per il cuoio capelluto – o per le lunghezze.
«Siero per capelli» indica due cose diverse: i sieri per il cuoio capelluto, che devono sostenere i capelli che si diradano, e i sieri per lunghezze lucide e morbide. Ti spieghiamo la differenza e ti diamo i nostri consigli per entrambi.
ARBUTI Hair Salon · Aggiornato ottobre 2026
I sieri per capelli che consigliamo
1
Cute · il nostro consiglio
LADUTI Hair Serum
Un siero per donne e uomini, in flacone di vetro ambrato da 30 ml con contagocce. Lo applichi la sera sul cuoio capelluto e lì resta per tutta la notte. Unisce AnaGain™ e Procapil™, senza minoxidil e senza ormoni; Dermatest® giudica la tollerabilità cutanea «molto buona».
Un solo principio attivo (tiocianato), ogni giorno sul cuoio capelluto, senza risciacquo. Si applica in un attimo. Il produttore cita osservazioni d’uso, ma nessun gruppo di controllo.
Un siero per il cuoio capelluto con il complesso vegetale MKMS24, secondo il produttore a base, tra l’altro, di bambù, timo e lenticchie. Si spruzza sul cuoio capelluto con l’erogatore e si massaggia. Le grandi percentuali del produttore non le abbiamo ritrovate in studi indipendenti.
Dal produttore del noto siero per ciglia, per donne e uomini, secondo il produttore senza ormoni. Il siero si spruzza sul cuoio capelluto con l’erogatore e non si risciacqua.
Un siero di bellezza per lunghezze secche, che si applica la sera e nutre durante la notte. Al mattino i capelli sono più morbidi e più facili da acconciare. Non è pensato contro la caduta.
Un siero oleoso a base di tre oli vegetali, tra cui l’olio di argan. Sui capelli umidi facilita il pettinare, su quelli asciutti dà lucentezza e doma il crespo. Bastano poche gocce.
Un siero per il cuoio capelluto non andrebbe risciacquato. Più a lungo resta sul cuoio capelluto, meglio è: per questo ci piacciono i sieri da applicare la sera.
Prove
Chiedi se ci sono studi con un gruppo di controllo. Dati del produttore come «fino al 90%» senza fonte sono pubblicità, non prove.
Tollerabilità
Se hai il cuoio capelluto sensibile, fai attenzione a profumi e alcol e prova i sieri nuovi prima su una piccola zona.
Peso
I capelli sottili sopportano solo sieri leggeri sulle punte. I capelli spessi e crespi possono gestire formule più oleose.
Siliconi
Nei sieri per le lunghezze non sono un problema e spesso sono il segreto della lucentezza. Sul cuoio capelluto, invece, non c’entrano nulla.
Domande frequenti
Un siero per capelli aiuta contro la caduta?
Un siero per le lunghezze no. Un siero per il cuoio capelluto con principi attivi studiati può sostenere i capelli che si diradano poco a poco, se lo usi con regolarità per mesi. Quali prodotti consigliamo lo trovi nella nostra classifica dei 10 prodotti per la ricrescita.
Posso usare il siero per capelli ogni giorno?
I sieri per il cuoio capelluto sono pensati per l’uso quotidiano. Quelli per le lunghezze di solito bastano dopo lo shampoo o al bisogno, altrimenti i capelli diventano pesanti.
Siero sui capelli bagnati o asciutti?
I sieri per le lunghezze proteggono dal phon sui capelli tamponati e, su quelli asciutti, fanno da finish anticrespo. I sieri per il cuoio capelluto si applicano di solito sulla cute asciutta: segui le istruzioni del produttore.
Che differenza c’è tra siero e olio per capelli?
Gli oli per capelli sono fatti soprattutto di oli vegetali, i sieri per le lunghezze spesso di siliconi leggeri con un po’ d’olio, che avvolgono il capello levigandolo. Nessuno dei due è pensato per il cuoio capelluto. Di più nel nostro articolo sull’olio per capelli.
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