I have normal (50 yr old) pretty good skin. Can still shine a bit, depending on how (hormonally) warm I am! 
I know my make (Clarins) and shade of foundation but it comes in two 'flavours' ... One matte and one luminous. Not sure what to go for, considering my age. I like to wear foundation most days which I've done since my mid-20's and I don't see a problem with this, as Long as it's properly removed each evening. I look pretty flat without it, to be honest.
Any other 50 + ladies gone for a change in foundation "texture"?