Works great to clean Invisalign aligners
I bought these to clean my Invisalign aligners.  They are much less expensive than the Invisalign crystals cleaner, and they work very well.  One packet of this in a small container with hot water and the aligners are super clean in just a few minutes.  I only took off a star because the packaging is kind of frustrating to use.  The packets have a notch to pull them open, but it doesn't work very well and I end up having to keep scissors in the bathroom to cut them open.
Rating: 4 stars