Hi skin geeks.
I've popped in from hair. My experience with skin care is doing mini-facials and prescriptions for 2 years when I worked for Steiner some years ago, and I used to retail quite a bit, so I kind if have some insight into what you are seeing as a threat.
My impression looking from the outside is this: if I were a 30 something lady who was quite well connected and picked up your price list to see you were doing a Monu facial for say £30, I might think to myself, "My friend Georgia on Facebook has been talking about these products and she has sent me an invite to her Monu party next weekend. I think I will save the £30 and go to Georgia's party where we can all give eachother facials with these products for free. I'll then use the £30 I would have spent here on products. Not only will it save me money, but it will help out my friend Georgia too!"
I can only imagine that I might pop in to ask you about which products you would recommend for my skin type (before the party) so that I can go there armed with a 'professional shopping list'.
If you are happy with the products, the only way I can see to compete would be to arrange 'free facial parties' yourself where you donate 2 hours of your time to groups of 8 or more in the hope you would then sell retail products by the close of the evening and perhaps some professional services too?
Either way though, it is the product company who gains the most.