I have been massaging a combination of 1 teas turpentine and 1/4 C castor oil mixed into my face and the back of my neck and abdomen . It gives a slow absorption of the medicinal properties of the turpentine and after a wek or so, I am beginning to somewhat feel a difference in my brain. not taking tincture as much. It is supposed to be an anti-aging formula for fine lines on face. I still look old, but will give that a lot of time...took a while to get all those fine lines and wrinkles....guess I have earned them!