Doo Gro and Olive Oil

Is it possible for me to use both of these products at the same time. I mostly like olive oil but my hair is thin close to hair line so ima have to start using doo gro. Dont like it that much because it doesnt hold as long as Olive Oil to me. So is it possible for me to use like doo gro in mornin then olive oil at night or vice versa?

doo gro i think is supposed to be used alone
well the doo gro grease

arrrgh just use your regular moisturizer and then apply doo gro(grease if that is what you have) once every 2 or 3 days

I dont really recommend mixing two moisturizers...