Not from what I read and based on the description:
Designed using the same high-performance formula as the original but without any branding on the packaging, the Maurten Unofficial Gel 100 12-Pack can be used by all runners, even those sponsored by other brands. Maurten combines nutrition and science to create one of the most efficient energy gels available.
That product is the same stuff, but able to be used incognito for those with other brand sponsorship.
I got them all from Amazon. For the brands, I just look for ones that have a decent amount of reviews that are not all terrible and don’t look like robots. Most of them ended up coming from “BulkSupplements” but there were a couple others in there as well. And on the taste front, I don’t add anything else as the maple syrup is good enough to make it go down pretty easily. (It can get pretty sticky though if you spill it)
I’m going to try this, my nearby Big W sells maltodextrin powder in the brewing aisle and the supermarket sells Gatorade powder. You don’t add any salt or anything?