NM Store roll out, page-26

With Evolis, as I understand it, the whole point is to get the customer in in the 1st place, the tricky bit being that it can take about 3 months for the client to see the hair retention/growth results they are interested in and which drive the product.

Once the customer is in and experiences the efficacy of the product they are then, supposedly, locked in for life.

To summarise, Evolis sales and use is the original 'slow burn', i.e it has a similar effect as compound interest, i.e. it starts small, becomes locked in, and expands exponentially over time. 

I would suggest that if that business model does not impress you should move on to something else.