I'm not sure what you mean by "detox products" but I do know that Steiners agressively pushes its products on ships. In the middle of a massage, you get a heavy pitch to buy stuff. I've been told that those working in the spa get most of their pay in commissions from the products (I'm not sure if this is true). It's one reason why I never get Steiners spa treatments. That and the fact that the treatments are overpriced and the quality is frequently poor.