I am very surprised and impressed with this product. I bought the trial size because I wasn't sure how well they would work. I tried them on my dirty, sweaty, smelly work clothes, and used no additives or stain removers, to be extra sure. My clothes came out smelling cleaner than when I use regular laundry detergent! I often have a problem with arm pit stains- but this product worked well. Note that you are supposed to make sure the berries can move around in the wash so don't fill the laundry tub to the brim and remember to use enough water. I followed the instructions and it turned out great!