Xeragel is practical, convenient 100% silicone for scars. It is highly recommended for use on exposed (not under clothing) scars. Xeragel is a 100% silicone gel scar treatment, designed for convenient, regular application over small scars. Perfect for discreet application on scar treatment sites where sheets would be inconvenient, impractical, or unsightly. Xeragel is a spreadable silicone ointment that is completely transparent.