The deteriorating state of your hair coupled with the fact that no hair oil worked, calls for an urgent attention of dermatologist. May be some hormonal condition or lifestyle habits are at play, or may be this can all be attributed to genetics alone, whatever it is, a dermatologist will be able to prescribe safer treatments and move on to better ones if previous treatments couldn't deliver desired results. To find experts who's opinions really matter, you can visit our page - Dermatologists in India.