Wrinkle creams

Everytime I go to the cosmetic section of grocery stores I always end up seeing a lot of wrinkle creams. Different brands, different ingredients and different approaches to erase your wrinkles. I don't know how this stuff works because I don't use them but maybe when I get old. For people who buy this stuff, how do they know which one is the best wrinkle cream? I guess it's trial and error like all other products but for this particular product it probably takes time to tell whether it works or not because it takes time to erase wrinkles. I hope one of these days scientists would come up with an anti wrinkle solution that would show obvious results in a few days and I hope they come up with it fast before I start getting wrinkles my self.