When thinking about vitamins that are good for your skin, the first ones that comes to mind are the obvious: A and C. Personally, I live by the two, and they have become staples of my skin-care routine. They work perfectly when used together to decrease my dark marks, firm my skin, and give me an all-around effortless glow. 

Vitamin A encourages healthy skin cell production. And if you see the term retinoid, there's a 99% chance it's packed with vitamin A. Retinal, retinol, and retinoic acid are important to cell production and growth, thus keeping the skin plump. Vitamin A also stimulates the cells responsible for developing tissue that keeps skin firm and healthy in the deepest layers of the surface. If you're looking for a good one, my favorite is the Alpha-H Vitamin A Serum ($70, Sephora). 

When it comes to vitamin C, it boosts your skin's collagen production to give you firmer, more plump skin and smooth out fine lines and wrinkles. The antioxidant-packed nutrient of vitamin C helps to fight free radicals and damage caused by UV radiation, and in this environment that's so needed. I of course have to mention my fave, the Ole Henriksen Truth Serum ($73, Sephora).

However, vitamins A and C aren't the only ones that can completely transform your skin. In fact, among all of the changes in skin-care, there's been one discovery that you've been missing in your routine. It's vitamin E, and here's why your skin needs it now more than ever.