Which serum will be good to brighten up my skin and also fade my acne spots?

Good Brightening serum?

I want to use cleanser now. I have been using benzoyl peroxide based soap ( suggest by my doctor)  since 4-5 months now which is being harsh to my skin now.
I wanna switch to cleanser now.  But I'm literally scared of cleanser 🙂 cz till now.. my skin has been reacting to every single cleanser. It always gives me acne . So I'm scared.
I tried Cosrx PH good morning cleanser last year.. it broke me so bad , can't even explain. 

I have Oily , dehydrated, acne prone skin. 
Have so many bumps one my face, Whitehead, blackheads. Nowadays my skin gives me burning sensation, i feel like burn when i touch my skin . 


Tea tree oil Doesn't suits me🚫

So I'm wondering if this cleanser will suit me! 
You can suggest me also. But affordable ones. (Cheap one if you can😶😶)
I don't want to spend much money on cleanser right now.

Is it good?

I want a sunscreen which will give me semi matt or matt finishing which won't glow that much, or make my skin look dull/ black. 
I'm using a sunscreen of beauty of joseon which made my skin look so oily. Even if i use powder above this, my skin feels heavy and awkward. So i want to try this sunscreen. Should i go for it?

How will it be for my Combination skin?

Which serum can i use for  My acne spot? 
Skin type : combination, acne prone skin .
Is these products can help? Or any other suggestion?

Acne spot ( red and black spot)

I wanna try this cream as a moisturizer and this essence together for brightening purpose on my combination acne prone skin
So should i go ahead?

Miana