how old were your silvery white stretch marks?? I really want to try trilastin, but its kind of expensive. I don't want to try it if it doesn't work. My stretch marks on the back of my knees really irritate me. I havn't been able to walk out of the house in skirts or shorts in a very long time. Probably 4 years now. I can't seem to get rid of them. I've been using vitamin E oil and retin A on them for like 2-3 years. It has faded, but not to the point where you can't see it. Please give me more feedback on this trilastin product!