I am an unofficial laundry detergent rater. I just know when I like something . I am a complete believer in powdered vs liquid. Right now I have two other powder brands and at least as many liquids. I am, yes, a product hoarder. For me to keep returning to Kirk means it’s that good. I was washing some pretty dirty clothes of a construction worker. Never would they remotely look like clothes unharmed by dirt, gook, stains or evidence of living the easy life ever again. Kirks went to work and showed off. It did a decent job on these clothes, never failed on regular lady laundry, towels and bedding , even the linen sheets in the summer and right now flannel. Don’t expect the suds you see in other detergents. Kirk’s is little to no suds. Open your washer for a peak while the wash cycle is running and see how the water is kinda sorta dirty ish. And you want suds ??