The Power of Vitamin C for Oily & Dull Skin: Cathy Doll If you have oily, combination, or acne-prone skin, you might hesitate before trying brightening ingredients but Vitamin C is one of the few that works beautifully even on sebum-rich skin. At Cathy Doll India , we believe in delivering gentle, high-performance formulations and today we’re diving into how Vitamin C can become your skin’s best friend. 1. Why Vitamin C is a Game-Changer for Oily Skin Many assume brightening ingredients are only for dry or mature skin, but Vitamin C brings unique advantages even to oily or “glow-deprived” complexions: Antioxidant protection : It combats free radicals caused by UV rays, pollution, and stress which can worsen oiliness and lead to post-acne marks. Brightening & evening tone : Vitamin C inhibits melanin production, helping fade dark spots and reduce dullness, without overly irritating the skin. Anti-inflammatory support : It calms redness, balances uneven texture, and c...