I have been a licensed cosmetologist since 1999. I graduate with a nursing degree in 2009. In between, I received a bachelors in business and started my own salon business. I am currently working as a surgical nurse in for a cosmetic surgeon.
If I had to do it over again would have gone to nursing school
first. I would have then worked for a cosmetic surgeon. The office i work for provided me with the training and certifications.
The medical spa arena is saturated and there are plenty of people who can administer botox and fillers who are doctors. Patients are legally required to have been assessed by an MD before an RN can administer anything. MD are the only people who can order botox and fillers.
I urge you to research your area for RN and MD who administer botox or fillers and compare that number with the demographic that will be your potential patients (females, age 20-65, median income above 25k, and etc.). Find the ratio of providers to patients.
Botox is sold to doctors for $6-7 a unit and that is with the recommend dilution. The profit margin is around 4-8 dollars depending on the area you are in. Also think about your overhead, supplies and advertising too.
This is what i have observed in the area that i work in and can't say this is happening any where else. I believe it is better for me to share my observation and experience so that you can make an informed decision.