This is the 86th most frequent Catalan word.
es
"Es" is the reflexive pronoun "itself," "himself," "herself," or "themselves" in Catalan.
Here, 'es' is used as a reflexive pronoun indicating that the action of combing is performed by the subject upon themselves.
Ell es pentina cada matí.
He combs his hair every morning.
In this context, 'es' functions as an impersonal pronoun that indicates passive voice usage, showing that the problem can resolve itself or be resolved.
Aquest problema es resol fàcilment.
This problem is solved easily.
'Es' in this sentence is used impersonally to introduce an indefinite subject, commonly used in general statements or hearsay.