If you don't mind travelling to Quezon City, I think this is the best review center for Chemistry Board Exam. They have comprehensive syllabus and tons of problem set and comprehensive exam for each subject area. Their post mock exam will help you lessen your nervousness during the actual board exam since the venue is one of the possible site of the actual exam. During and even after the review, they will spam you with e-mails (kidding) containing helpful practice exam, online refresher exam with solution videos and most especially, encouraging messages. It doesn't stop there. They hosted a career fair to ensure that their students will have an idea of the path they might want to go to as a chemist.