I immediately washed a load of towels. The Ultra Downy fabric softener worked just as it should. I was neither impressed nor disappointed. Fortunately, I am not plagued with bad static during warm months, so I didn't have much to review here. I was pleased, though, with the fresh scent the Unstopables brought to my towels. Maybe the scent was a combination of the fabric softener and Unstopables, but I can't imagine fabric softener alone would provide as prominent an aroma. The test, though, would be whether the scent stuck around after I tossed them in the closet until their next use.
In addition to water, fragrance and coloring, the ingredients in Ultra Downy liquid fabric softener include diethyl ester dimethyl ammonium chloride, a softening agent; calcium chloride; a process aid such as water; and formic acid, which works to control the solution's acid/alkaline balance. Liquid Downy also contains an anti-foam agent, polydimethylsiloxane and a preservative, benzisothiazolinone. Ammonium chloride acts as a chlorine scavenger in liquid Downy, diethylenetriamine pentaacetate and sodium work to bond metals in the product, and starch provides structure.