I have asthma and eczema and am very picky about scents. I also have ADHD and a front loader and I constantly forget that I've got wet clothes that need to be switched to the dryer, until 2 days later. As a result, my family's clothing all had a vague mildew smell all summer. I tried a bunch of remedies but nothing worked, and I'm not willing to use a scented fabric softener or even have that or scented laundry beads in my home. I ordered the washing machine cleaner, which helped a bit, but the smell was still there. Then I ordered the detergent, and after 2 weeks of use (so 1 or two washings for items), I am pleased to report that nothing smells moldy anymore- not when it's damp, and not when it's dry, either. I even forgot to switch a load of towels to the dryer for 20hrs, and they still were fine and didn't need to be rewashed. I am not sure if it was the combination of the detergent and the washing machine cleaner finally cleaning the smell out of my washer, or if it was just the detergent alone cleaning the spores out of the fabric of our clothing, but either way, I'm happy with the results. Clothing was cleaned well except for a white shirt that I had to soak in peroxide to remove stains (didn't expect it to clean dried nosebleed stain but thought I'd throw it in just to see). This review is for the unscented regular powered laundry detergent. I haven't tried the new scented detergent yet, but I'm willing to (even though I usually avoid scents) and will review that product separately. As of now, I'm switching to this unscented version.