My hair shines and has stopped falling out

After using pine nut oil, my hair shines and has stopped falling out! I tried applying it to the roots before washing — it works. I also tried to add a few drops to my shampoo. That works as well, but my hair gets dirty faster. Then I began to apply a couple of drops of oil on the ends after I dried my hair with a hairdryer. The ends become manageable, and the frizziness disappears.