Here’s a little more understood, but more powerful, bioactive one: Coenzyme Q10. * It’s an antioxidant that works a bit behind the scenes, but one that has visible results – both internally and topically, I’d like to add. * I’m a huge fan applying this bioactive allover if I am being completely honest.

For the full explanation of the coenzyme, see our Complete Guide to CoQ10. But a quick overview is this: CoQ10 is a fat-soluble antioxidant found in every cell in your body. It comes in two forms – ubiquinone and ubiquinol (the active form) – and your body naturally produces it, although your levels go down as you age.

It has a slew of roles in the body when taken orally, but for my purposes (read: I’m a beauty girl and love to write about skin care) I’m a fan thanks to the role it plays Cell health plays a role in the skin. *