Will hot oil treatments mend or repair breakage in my hair?

and i read about at home hot oil treatments a few sites say use 6 tbsps of olive oil but some say 3 tbsps of olive oil and 3 tbsps of canola oil, which one is better and how are they different?Will hot oil treatments mend or repair breakage in my hair?
I have never heard of using olive oil, however I buy a product called VO5. It comes in like a pack of two tubes of oil, that you out into hot water to heat up, then you put in into your damp hair. Works very well, but only use it if your hair is really dried out. It will make healthy moisturized hair look oily. You can purchase it at any drug store or grocery store, cost about $5. Hope this helps