I bought a gallon of some stuff early into the pandemic from a online retailer that sells commercial fog machine supplies. It smells likes farts. I felt bad giving bottles of it to friends and family but it wasn't like there was much else available on the shelves and at the time touch contamination was still a big concern. I added some fragrances so it smells mostly like lemons now and only a hint of farts.

We bought another gallon from a cosmetics supply wholesaler and it was much less stinky.