Hey there! Based on your question about silicon scar gel being good for old scars, I have a few recommendations from the results: The Tcm Scar And Acne Mark Removal Gel Ointment is a great affordable option at just R60. It's silicone-based gel is designed to help fade both new and old scars over time with regular use. For a higher quality silicone gel, the Bariederm Cica Daily Gel-cream at R450 contains madecassoside from centella asiatica to soothe skin and hydrate scars, along with dimethicone to help flatten scars. Both of these silicon-based scar gels should help improve the appearance of old scars when applied regularly. Hope this gives you a good place to start in finding the best scar gel for your needs! Let me know if you need any other details.