I have used Campsuds for many years. Do you really need special camping soap? Yes, you do, it does make a difference.
Camp suds has lots of cleaning power in cold water, is environmentally responsible and super concentrated- you don’t need more than a few drops. I have yet to empty an eight ounce bottle shared by a group of 7 over a week of canoeing. The one gallon size is handy for refilling smaller containers and costs less per ounce than the smaller sizes.
From the maker of Campsuds Sierra Dawn:
In the 1960’s Campsuds became the first biodegradable, multi-purpose cleaner created specifically to meet the needs of the camper, backpacker and adventure traveler. Since then it has been carried to every corner of the planet by three generations of outdoor enthusiasts. Compact, versatile, hard working, convenient and environmentally safe, Campsuds has many imitators, but remains the market leader today. Works equally well in cold water — salt water too! Just a few drops will handle any cleaning job. Strong enough for dishes and clothes, yet gentle enough for body and hair. Made from natural vegetable-derived ingredients with natural essential oil fragrance.