Maybe it's an undiscovered niche market, using their products which are readily available and instructing the client,(they could still come back as it's nicer to have someone "DO IT" to you, rather than do it yourself.
I used to be kinda anti-Avon ... ding dong and all that stuff, but I find their products pretty good (Thank Avon for the ANEW range), they spend mega bucks on R&D and have been around longer than many other brands ..... there has to be a reason behind it.
Maybe you could market it as separate from other products and services ... an alternative if you like.