I signed up for emails, so I get notifications foe the sale by mail. There are a few sales per year, and I received 40% off each time I've ordered. I usually buy liter sizes, so they last a long time. The Fruit of the Groomer line isn't too expensive either, but the Black Passion is. The dilution ratio is 1:3 for most things. This is a link to the current sales. This looks like it probably would be good, and the price is great.
http://shop.ivsanbernard.info/REGENE...-DEAL-5069.htm ISB USA SPECIALS, 2 FOR 1 SPECIALS & OTHER BRANDS