I have used a few creams that have crystals from different brands including Philosophy and Alpha-H but Bergman's microdermabrasion cream is hands down the best one I've come across so far.
It has the tiniest diamond shaped aluminium oxide crystals that exfoliates even more than similar products out there that have bigger particles. Don't be fooled though, it's very strong and you ought to be careful not to hurt your skin. The creamy texture gives good amount of hydration too. I would recommend this cream to anyone who likes manual exfoliation for little pigmentations and fine wrinkles, I personally like following with a good face oil to top up my game.