40 oz NEW Muscle Soak same benefits, same packaging, the difference is we are keeping it in its natural state "Colorless". After many requests we have removed the coloring. We're always told color is pleasing to the eyes, and that holds true. With our muscle soak after testing we saw that the white is pleasing to the eyes. The scent is a cool eucalyptus and peppermint blend, and benefits are endless. Go to our webpage and read the numerous facts about our product. For arthritis, knee and joint pain, pain from physical activity, soak your hands in a bowl to relieve swelling in your hands, add directly to your knee and cover with wet wash cloth for knee pain, and if you hurt all over lay back in the tub and relax your entire body..You will exit the tub with a cool and tingly feeling you will not want to go away. Remember if you can't get in the tub you can soak in foot baths, prop your knee a make a cold compress, the salts will go directly into your tissues. A medical grade Epson crystal with vit e, aloe vera. Leaf juice and blends of peppermint and eucalyptus oil.