Hello Ladies, I've been using the extra dark Jamaican Black castor oil and use it to scalp massage. I've wondered whether the type of Castor oil (refined, unrefined, scented, peppered,etc) makes a huge difference with continued use? I've been looking at concocting homemade HairAdrenalin as opposed to ordering it. It's Castor Oil but unsure of the kind used by the original seller? Is using plain old Castor Oil superior?