An anhydrous topical scar treatment product having a water activity of less than 0.50, the product being comprised of (i) a silicone elastomer, (ii) a non-volatile, anhydrous carrier vehicle, (iii) L-ascorbic acid in the form of fine powder, at a concentration of concentration of from 7.5% to 15% by weight, based on the total weight of the anhydrous topical scar treatment product, and (iv) an oil-soluble Vitamin C derivative at a concentration of from 5% to 10% by weight, based on the total weight of the anhydrous topical scar treatment product.