Stay away from Moisturizer Z

Back in April I wrote about having a weird allergic reaction to something. My eyelids and the area under my eyes swelled up and the skin at the base of my neck got all red, blotchy and itchy. I never did quite figure out what it was, so as a safety precaution I stopped using certain products (including this one moisturizer, we'll call it Moisturizer Z), and it took a good week or two for my body to recover.

Here I am, 3 months later, and yesterday afternoon my eyes started itching again. By the evening they were full-on bugging me, and this morning I woke up to the same puffy eyes and blotchy skin. Yuck.

This time, I haven't been spring cleaning, and I don't think my stress levels are particularly high or anything different than the usual. So near as I can figure it, I think this is caused by Moisturizer Z.

Which is weird, because I have used this moisturizer before. But maybe they changed formulations? Or maybe I never used it on my eyelids before or at the base of my neck? Or maybe my body just doesn't like it anymore. I have no idea.

All I know is, I've been using this one moisturizer (we'll call it Moisturizer A) that I like a lot. Moisturizer A has never bothered me. But I ran out of it yesterday, so I pulled out the other moisturizer, Moisturizer Z, the suspect one that I had been using back in April. I decided to give it a try, figuring that if I had the same reaction, then Moisturizer Z must be the culprit.

And here I am, all puffy and itchy again. Coincidence? I think not!

I'm going to pick up some more of Moisturizer A and throw out Moisturizer Z because I really don't want to experience this again!

How about you? Are there certain products you've tried that have caused adverse reactions?