Just curious - how many are using a Vit C product and seeing results? Can you use both a Vit C and Renova? The Vit C I have looked at it La Roche Posey Active C and Skincetuicals C+E. I have used both but could not really tell a difference...not sure what I was expecting though! How do you know when the Vit C is no longer effecitve or should not be used? I have some Active C that expires in July and has been keep in a dark, cool place. I don't want to use something to cause more damage. More goals are to stop the breakdown of collegen while evening out apperance. I would like to have the pores at my cheek area (closest to the nose) not quite so noticeable. I used to have invisible pores but I have probably caused them to be more visible due to improper products. Thoughts?