Secret toxic mold! It’s not just what you see, but what you don’t see. It causes nasal stuffiness, eye irritation, and worse. We help you find it and get rid of it with our DIY mold checklist. Then, YouTube’s funniest star Hannah Hart opens up about her hidden offline health troubles and how she overcame them.

Want to know how to look marvelous without splurging so much? Dr. Oz invites three beauty experts to share the smartest ways to save money while looking fabulous starting from your hair and makeup tools to the beauty products you use.