It is in fact quite common to develop pigmentations on the face especially for Asian skin types, and from middle age onwards.
"Age spots" are often described by patients for dark brown spotty pigmentations on the face, but this is just a layman or generic description.
So first thing first, let an experienced doctor diagnose what exactly are these "Age spots". Are they solar lentigos, seborrheic keratosis, melasma or something else? Then we can advise on the appropriate treatments and prevention measures.
You can read more about the different type of pigmentations in my "Ultimate Guide to Pigmentation Treatment in Singapore".
Hope this helps!
Cheers!
Dr David Ng C H