Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh.

 

Hair transplant is permissible in Islam. It does not involve a plastic surgery while it is an attempt to regain original appearance of one’s hair.

 

Using oil which contains a percentage of alcohol is prohibited according to the four schools of Islamic law because such alcohol is intoxicant and therefore, the rulings of wine is applicable to its use. According to them, alcohol is as impure as wine.

 

Almighty Allah knows best.