Pimple and dark patches near brows.

I am using brillante , glo blanc and navibrite gel for completion correction. Navibrite gel I use at night not always. Alternate days I have mela 3 tube also but I hardly use. brillante serum I am using in evening almost daily and glo blanc serum in day as I am wfh. It is good. I took 5 6 session of iv glutathione. Oral also with vitamin c. Result is satisfactory. But have pimple problem when on my face, back and chest. When I use thes gels above mention I got pimple on my face I stop using them again pimple appear on my face but I was clear comokextion currently I am dark not much dark dusky but I want 2 shade lighter. Without any Marks is that possible. I am using deriva cms for pimples. In chin I have maximum pimple problem. Any suggestion doctors .