Hi I'm looking for a sulfate free natural hair mask or overnight treatment or even deep conditioner. My hair has lost its shine and is quite thick and frizzy however I have a sensitive scalp so don't want to just use any high street product! Can anyone recommend something natural that'll give my hair some shine and softness? I know I won't be bothered to do a home made treatment and don't want to use coconut oil etc because of greasy hair. Thank you!