I agree! no Kaytee anything. Even if the specific product is alright I won't pay them money and support their brand. I use Blue Cloud and it is great, I got it in a large(ish) quantity from a member on here, saved a lot of money compared to what I would've paid at a pet store, check out the Chin suppliers sticky in the classifieds section
I looked up supreme science... is the type you have the one that says "bathing sand"? If so, the kaytee dust would actually be preferable to that, as they need dust, rather than sand, to bathe in. The sand is too coarse and will damage their coat.