Hello, another American fan of Kim and Aggie, and the How Clean show.
As a retired chemist (no, not pharmacist)

I was curious to learn at this thread that "sugar soap" was actually the compound TSP [trisodium phosphate, or Na3PO4. Here we ask for TSP at the local DIY or hardware stores to prepare walls for painting by removing mold or grease, using a water solution of TSP. Correct, it is not environmentally friendly in the older form, and in significant quantities, and perhaps not even in the modified form, but I do not know.
My question for this thread is, on the show, serious cleaning, or pet-stain removal, requires an enzymatic (biological")washing powder. I've never heard a brand name mentioned on the show, perhaps for advertising reasons.
By doing a Google search online, the enzyme washing powder came up with one source, and by the brand name of "ECOVER". Here in Texas, a health food chain store called Whole Foods does sell several environmentally friendly products of ECOVER brand products such as laundry detergents both powder and liquid, as well as dishwasher detergent and general purpose liquid household cleaners.
ECOVER here does not market any enzyme-containing products according to their ingredient labels, and do not sell anything in powder form, only premixed/diluted liquid products, other than for the laundry.
The enzymatic washing powder by ECOVER websites were only UK sites.
Is there any other brand-named enzymatic powder (concentrated form) other than ECOVER that might be available here in the U.S.?
The only enzyme-containing products I've found here are two: pre-diluted pet stain liquids, containing strong masking fragrances, distributed by pet stores [can't use anything with a fragrance, allergies to chemicals/solvents too severe], or a product sold for folks to add to their rural septic tank/waste systems to add beneficial microbes (enzymes?) by the product name of Rid-X. I'm concerned about using a solution of the Rid-X to clean the flooring as any residue might be picked up by children or pets if not rinsed completely.
So far, I've been using a superheated steam machine called Vaporetto by Polti to disinfect without the use of chemicals, so I do have a method of cleaning, but for pet (organic) stains, etc., I would like to have some kind of safe product to use around the house.
Can anyone help in this situation?
Thank you in advance, and please pass on my cyber-hugs to Kim and Aggie -- I think they're the best!