I used in the past an certain oil , I won't give the name, which left me with some nasty scars tissues. Now I am ready to try syntherol. I've done a lot of research on the product , not only here on this board, and I've seen a lot of photos. Most of the people used it were happy with the results. I just want to make sure that this product doesn't have any kind of colagen, which was the cause of all my troubles with my first cycle. So if anybody has the knowledge about this matter please let me know.