My doc recently suggested demelan cream for uneven skin tone. But i tend to get 1-2 breakouts before periods and i was using tretinoin 0.04% earlier 3x a week for the same and it works for me in tackling breakouts. I still wanna continue it. So can i use tretinoin for 15 days a month till my periods and then demelan cream for another 15 days. Will it work. Or how else can i incorporate both tretinoin and demelan cream in my skincare routine at night? Ps...i use niacinamide serum in the morning and ocassionally vit. C also.