I purchased this after hearing that it can help reduce the appearance of scars. I have a lot of scars and I feel uncomfortable with them and after talking to my gp about scar removal, decided to give this a shot.
This is quite a thick, greasy oil. It left a slight greasy residue on my scarred skin but it didn't bother me all that much. I used this every day for over three months, as my doctor suggested I do. I went back to him after three months and my scars had faded a little bit but not a lot. Also the scars that had faded slightly were scars that weren't very deep, whereas the keloid scars didn't fade at all.
I continued to use this daily on my scars until the bottle (I used the 125ml bottle), ran out. Alas I didn't notice my scars fading that much - it didn't appear to do anything to the keloid scars and my doctor suggested that it was because the skin was too deeply damaged. Also on the scars that weren't so deep, bio oil did fade them but they are still visible.
I won't buy this again as it didn't do a great job for me and it's kind of pricey. I don't know what it is like for stretch marks but certainly for more severe scars this wasn't effective.
So I brought this not for my stretch marks, but as a moisterizer in winter for my dry skin. I believe that if you're going to get stretch marks, you're going to get them and no "miracle" cream is going to prevent that.
Bio oil is great for dry skin. I only use it in winter as it's quite oily and in winter my skin gets quite dry. Using this stuff my skin is never dry! I only use it at night and by the morning, my skin is soft and moisterized and all the oil has been absorbed into my skin. I love it! I've been using it for the past 3 years (only in winter) and the condition of my skin has never been better. My skin tone is also nice and even. Overall, I love this product.
Tips: I don't use this product in any kind of warm weather as it is quite oily and just does not feel nice on sweaty skin!