Hey there! I wash my hair twice a week with T-Gel (wet my hair and lather in T-Gel and let it sit for 5 minutes before going in and rinsing) and I use ArtNaturals Tea Tree Shampoo & Conditioner in my hair 4 times a week. I leave the conditioner in for about 5 minutes as well.
I wash my face and beard nowadays with Desert Essence Face Wash.
For the oil, I just apply it directly onto my scalp (a dropper bottle helps greatly with this) and lightly massage to keep it from dripping onto my forehead. I apply the oil to my beard and chin just like any other beard oil, lightly dampening my beard and skin with hot water before applying the oil.
Also - for those on Keto, MCT Oil taken orally is supposed to help stimulate Ketosis.