I actually received this, and though I’ve only used it a couple of times so far, just having it has given me a lot of peace of mind. I have an ultrasonic cleaner at home, but obviously, I can’t bring that with me when I travel, so I never feel that I’m really getting my retainer clean. With UVA and UVC light, it delivers an extra layer of sterilization, making me feel that I’m not putting gross retainers in my mouth after a few days of being out of town. And shockingly, this case is super lightweight. I feel like you’d expect it not to be, with all the ~science~ it’s doing behind the scenes, but it’s not, which is great, since you’re obviously packing it and don’t want to add a ton of extra weight. Highly recommend this for anyone who is afraid of all the germs collecting on the literal thing they put INSIDE their mouth!! 

Promising review: “Always hated how dirty and unhygienic my old plastic case got. This thing is a revelation. It feels so good and clean being able to sterilize my Invisalign on the go; plus, the feel of the product is super premium. Totally recommend.” —Elvie B.

Get it from Zima Dental for $89.99.