I bought bio oil (big bottle) as I had heard such amazing things about it and wanted if for the stretch marks on my breasts and stomach.
I used it for about 8 months to a year thinking might take a while (a little also goes a long way)
I did not notice any change to the stretch marks but it does make my skin feel very nice, soft supple and moisterised. it has a mild smell but i found I did not notice it once rubbed in.
I don't think I would repurchase bio oil as I have different products that I can get the same soft feeling with but as it didn't do anything for my stretch marks, i do not recommend for that purpose
I tried this for acne scars on my face. I heard great things about Bio Oil and I thought I should try it out. I bought the large bottle. Unfortunately this did nothing for me. It was so oily and because I have oily skin as it is, my skin just wouldn't absorb it. I had to be very careful applying it around my eye area as it did irritate my eyes if any little bit got near it. I used this at night before bed and it made my pillow cases greasy. It might work for other body parts, I don't know but it didn't work on my face which is the main reason I bought this.