You should use the search facilities at either BACM or Treatments you can trust
http://www.cosmeticdoctors.co.uk/or
http://www.treatmentsyoucantrust.org.uk/Avoid anyone who is not qualified (medicine or nursing) and may not be insured;
Check nurses are nurse prescribers as the practice of remote prescribing has been finally outlawed!
http://www.gmc-uk.org/news/13595.asphttp://www.nmc-uk.org/Nurses-and-midwives/Regulation-in-practice/Regulation-in-Practice-Topics/Remote-prescribing-and-injectable-cosmetic-medicinal-products/so anyone providing botox but who is not qualified to prescribe is putting their registration at risk & probably has invalidated their insurance!
Sadly you get what you pay for - this particulalry applies in the realm of cosmetic medicine!