Does neostrata hq free lightening gel (kojiic acid, vit C, liquorice, bearberry, 10 aha/pha) fade red facial scars (not acne scars). thanks very much?

Likely not. The red scars are a part of the healing process overall. The agents you listed tend to inhibit melanin production which is a darker pigment. The red is partially vascular in nature. The products may diminish the red to a small degree.