Obagi Nu-Derm Vs. Skin Tx Skincare

I've researched a lot about the Obagi Nu-Derm line and heard good things but I couldn't find anything on the Skin Tx line or any reviews. A lot of people compare these two together though. What are your thoughts on them and which do you prefer or think is better for acne/hyperpigmentation/post-acne?

No doctor answers yet