I am asian male that use retin a 0.05% for 2 times a week, I wear sunblock all the time even indoor.
Now here it is, beware people of color, i mean asian, hispanic, black... retin a only darken your skin, it doesnt lighten

absolute useless, retin a irritate your skin, and it will turn darker, because their melanocyte is SO stubborn that it produce so much melanin no matter what

if you have acne, you got brown spot, if your skin is irritated you got brown spot

absolute hell, nothing works, people of color are doomed with uneven skin
do you know why many derm says retin a works? it only works on caucasian skin, what a load of BS
caucasian have less active melanocytes, that's why if they are white and have even skin, it will stay like that
meanwhile people of color not only has to deal with acne, but brown spot PIH after acne as well

RETIN A SERIOUSLY DARKEN MY SKIN, I WONT TOUCH IT AGAIN, WHAT A GARBAGE