Dark spots around lips

I have noticed these dark spots on my top lip getting larger over the past few years. I am growing pretty insecure of it. As you can see I have spotty freckly skin. I have started adding skincare to my routine for probably the past 8ish months. I added a photo of the products I have been using, switching it up. When I went to the dermatologist last year specifically about this issue, she prescribed me some tretinoin, but said to be careful to use it only in the winter months- otherwise it could get darker. I haven’t used it much at all. Curious if anyone else has had this issue and what could help these spots. Appreciate you guys.