Is lemon juice really effective for acne and acne scars?

Lemon juice is pretty good :) It worked for me (btw. my skin is also not oily but I used to have acne). It helps to exfoliate the skin which makes the scars less visible. The results are visible after a longer period of using it, and it probably doesn't work for everyone, so I'm not 100% sure if it will work for you. Lemon juice will also make your skin paler and a bit dryer so don't use it too often. I hope i helped :)