How does tretinoin work on age spots? I am 63 and I have a few bad ones on my face.

Tretinoin is something I recommend consistently for my patients concerned with age spots and pigmentation. Typically, to increase efficacy and speed up outcomes, I will also add products containing hydroquinone. like those from the Obagi line, to my patients' home use therapies. This combination approach works very well. Give yourself a good 3-6 months of consistent use of the products to see results. You should certainly be combining use of these products with a good sunscreen everyday to prevent the recurrence of pigmentation. You can also combine these products with in office treatments, like IPL, for even better results. Good luck!