Silderm scar gel 15g is a effective gel treatment designed to minimise the appearence of scar tissuer what is silderm scar gelr silderm scar gel is a lightweight self drying silicone gel for the treatment of scars silderm scar gel contains silicone which has been shown to flatten soften and smooth scars relieve the itching and discomfort of scars as well as reduce the discoloration associated with scars