Vitamin C is an antioxidant that is good for the body and the skin, so choosing a daily face cream that contains this ingredient is a good idea. Often, a face cream with vitamin C will contain other antioxidants such as vitamins A and E, which can make the cream even more beneficial and effective at repairing damage from pollutants and UV rays, as well as preventing future damage. In addition, choosing one with a sunscreen is even more beneficial, because it is important to protect the skin every day to prevent wrinkles, sun spots, or even skin cancer.
When you are searching for a face cream, determine when you will want to use the it; for instance, a cream for use in the morning or one for use at night will generally be very different because they are accomplishing different goals. Products for use during the day will generally provide light moisturizing, as well as sunscreen and possibly even a light tint to even out the complexion. A cream for nighttime use will not contain sunscreen or makeup, and will generally contain heavier moisturizing ingredients such as shea butter to more deeply repair the skin overnight. Though it may be possible for people with very dry skin to wear a nighttime moisturizer during the day, generally this will just make the skin look oily.
There are a few other considerations when choosing a face cream with vitamin C, such as any specific skin issues you want to address. If your skin is particularly sensitive or allergic to certain ingredients in beauty products, you may want to choose a cream designed for sensitive skin, or one that is hypoallergenic. Blemish-prone skin might do well with a cream that includes ingredients like benzoyl peroxide or salicylic acid.
Consider also your skin type, and whether it is prone to being oily or dry. As a general rule, it is best to choose an oil-free moisturizer for all but the very driest skin types. People with oily skin may only need to moisturize once a day as well, generally at night. It is still important to be sure to wear sunscreen every day, however. Some people find that they prefer natural or organic moisturizers, while others are fine with the common drugstore brands; it is generally not necessary to spend a great deal of money to find a quality vitamin C face cream, however.