u/AcceptableWalk8936

I saw someone on tiktok and the corners of her lips are all damaged bc they put tretinoin there so i asked in the comment section what products i should use instead. A commenter replied to me and suggested azelaic acid but another commenter disagreed bc it caused her to have angular cheilitis and suggested niacinamide instead. But i also heard niacinamide doesn't really fade dark spots, so now I'm conflicted. What should i use instead that is gentle enough on the skin around my lips?

Please no spicy notes i hate that smell so much lol. preferably local din