I have dark scar marks on various places on my body, none of which are raised. I am interested in using a silicone based scar removal gel, but I can’t decide which one. I am considering using the following: Meladerm, Scar Estetique, Kelo-Cote, & Dermatix Ultra, but I don’t know enough about any of these products to make a decision. Of the 4 listed, which is more effective for removing dark marks from scars? And why? Are there any other scar removal gels/creams that you would recommend over the 4 listed above? And why?