Any suggestions for horizontal line across nose right between eyes? (photos)

Dear roses133:Thanks for sharing your photos. With a history of using Retin-A and no improvement in the quality of the fold or pigmentation, this maybe a shadow. Proper use of Botox or fillers may help lift and / or fill the horizontal fold you present.It is best to be evaluated by a well experienced, Board Certified Plastic Surgeon or ENT Facial surgeon well versed in all these techniques to provide a better recommendation for you. All the best!

Best to seek only in person examinations. I would start with 20 to 30 units of a toxin first. Than if not much better inject a filler like restylane silk