What is the ruling on using hair softener or hair moisturizer?
Shaykh Abu Abdullah Muhammad Ibn Hizam, may Allah preserve him, he answers and replies with, he said if these softeners, these moisturizers or these lotions which are being used have no affect on the hair or skin. They don’t have any chemicals or matters in them which are forbidden, then it is okay for it to be used. And so this is permissible for an individual to use matters for his hair, in which he wants to make it softer or he wants to moisturize it, as was mentioned that olive oil used to be used and the messenger of Allaah salallaahu alayhi wa sallam used to moisturize his hair with it.
Abu Aseed said: “The Prophet (peace and blessings of Allaah be upon him) said: “Eat the oil and use it on your hair and skin, for it comes from a blessed tree.” (Reported by al-Tirmidhi, 1775; see also Saheeh al-Jaami’)
And olive oil in General is a good softener for the hair.
Answered by : Shaykh Abu Abdullah Muhammad Ibn Hizam, may Allah preserve him