A few companies have made excellent Blixes, Photocolor in particular. Used correctly Tetenal products are also excellent and they have a very long history which predated Kodak by decades and they always made/make excellent products.

There's good blixes and very iffy (not so good) and you need to be aware, blixes neeed regeneration in a part filled bottle plenty of agitation get more oxygen in . . . . . .

Ian