From another St. Bernard group I got tuned into Kelco Natural and Organic. It's a concentrate,1 gallon makes 33 gallons so it's economical with no chemicals, pesticides or preservatives. For me the big thing was it washes out completely, easily and contains aloe, jojoba, avocado and vitamins A, D, and E. and I really like the smell. There are all of types for different skin conditions. I use Pennyroyal. I know I ordered it on line but is was so long ago I can't remember when, I still have some left after almost 2 years. I don't show and we have so much snow in the winter we kind of avoid baths lol. I've been happy with it for two Saints that get very very dirty.
if your interested their site is:
http://www.kelcoshampoo.com/Best, connolly