I also like my face moisturizers to contain collagen.  
Collagen is great at providing structure for your body
Exactly especially on your face when you age.
Absolutely. That's why it's such a popular supplement
Women lose elasticity in their face.
Collagen can help with the sagging and reduce wrinkles because of that
I like to rub the moisturizer on my neck as well. Firms everythings.
That's smart. The skin on the neck goes through the same aging as the skin on the face
It also helps with dark spots. 
Wow that's cool. Collagen can do a lot