So, fellow sleuths, why did Denise Richards have bloodshot eyes at the RHOBH Reunion?  "I am allergic to powder, I've tried so many. I hate it. As soon as it's used on my face, my eyes get bright red immediately," Denise wrote in reply to an Instagrammer's question. Not only her eyes, but her nose also starts running, apparently. (We didn't see any runny noses caught on tape, for what it's worth.)

"At first drops help, but as the day goes on, nothing does," Denise continued, "On this production in Spain they even had to switch to cream shadows and blotting paper. Any make up  artist that has worked with me & still works with me knows this about me & we would love any input on this."  Does her explanation satisfy your curiosity? Other Instagrammers, quick to shout "Team Denise," have affirmed that red eyes due to make up allergies are "100 percent a real thing."