Morning Skin-Care Routine For Maskne: Serum No matter what's happening with my skin, I always use a vitamin C serum in the morning. The Drunk Elephant C-Firma Vitamin C Day Serum ($80) is especially great right now because it gently exfoliates my skin with L-ascorbic acid. Image Source: sephora.com Drunk Elephant C-Firma Vitamin C Day Serum $80 from sephora.com Buy Now