I purchased this originally a few years ago from a major online vendor to hand-wash delicates after seeing it glowingly reviewed by Wirecutter. Now that I also have face masks to wash on a daily basis, I'm so glad to have a scentless, effective, no-rinse detergent to keep them clean with less wear-and-tear. You don't have to use much of it at once, so it lasts a long time. I highly recommend purchasing it from Sugarboy's - the detergent arrived faster and better-packaged when I ordered it from Sugarboy's than when I ordered it elsewhere in the past! Thank you!