How long do you have to use a night cream before you start to see a difference in your skin?

%26amp; after awhile does it lose its effectiveness?How long do you have to use a night cream before you start to see a difference in your skin?
I use Arbonne's NutriMinC RE9 anti-aging line and noticed a difference with the night cream right away. I also notice that if I don't use the night cream for a few nights in a row, that my skin doesn't look as nice. So the Arbonne night cream really does make a big difference pretty quickly. You can get more info at: http://GreatSkinGreatLife.myarbonne.comHow long do you have to use a night cream before you start to see a difference in your skin?
I've always hear its 30-45 days. I don't think its loses effectiveness, I think you stop seeing change because it can only do so much, but if you stop using it then you'll be back at square one.
I used a night cream because my skin was peeling on the right side of my face and it felt kind of rough too but my dermitologist gave me this cream to use use over day and night and my skin was fine and really smooth in 8 days
if something works well u should see results right away...like when i use befine products its automatic that i have this nice glow..most creams will tell u about 2 weeks