I used to use dermalogica hydro active mineral salts but mixed with water instead of oil. Gives a great scrub and never had any problems with tanning after. I'm mobile now so don't do body treatments anymore, if you have a dermalogica account you can order the professional size, if not then it does come in a smaller tub for retail and even sachets to try. Obviously it's a bit pricier than a standard scrub so it would have to be factored into your pricing! Hope to help xx