Yes, Fixderma Kelocepa Silicone Gel can help improve blade-cut scars on your hand by softening, flattening, and lightening them over time. It works most effectively on newer, fully healed wounds by forming a protective layer that hydrates the skin and reduces redness and thickening. Apply a thin layer regularly as advised for better results. If your scar is deep, old, or not improving, it is best to consult a doctor for further guidance.