Disclosure: I got this product as part of an advertorial.
Vitamin C Serum and Roseship Seed Oil are both great oils. The roseship seed oil I have been using on my legs along with a moisturizer. It makes my legs really smooth. And it is also supposed to help clear up dark spots. I haven't really used the Vitamin C serum a lot, only twice. It is supposed to be used for aging, and since I'm only 24 I don't feel I need it now. You apply a couple drops on your fingertips and massage into face and neck after a toner or moisturizer is applied. I'm pretty sure it would work great.
I received one or more of the products mentioned above for free using Tomoson.com. Regardless, I only recommend products or services I use personally and believe will be good for my readers.