What type of TCA Peel is recommended for African skin to treat uneven skin tone, black spots, dark circles & fine lines? (Photo)

I already used the15% mandelic acid/ 15% salicidacid peel from MUAC at home .. I did it 4 times Already and I couldn’t see much difference.. I just want a peel that will go deep anoth to clear my skin by one application.. I know I have to be very careful with my skin care after I did a strong peel.. I already use 50+sunscreen every day and the sun is not even shining here.. (Germany) what would you recommend for African skin pls?? (I have dry skin without cream.. and oily skin over the day)