How do you find a qualified spa therapist? Start by defining "qualified".
It is important to first sit down and identify what key qualities you are looking for before hiring a therapist(s) as not all businesses are the same. Are you looking for a leader? A person who you can mold or someone who has multiple certifications so they are able to provide greater coverage for your operation?
Education is of course a cornerstone but passion is also a key quality in looking for good therapists. If someone is fresh out of school and has the passion and determination to become an excellent practitioner you may want to hire them over someone who has a lot of experience but not such a great attitude and may have a sense of entitlement.
Word of mouth will help to bring you qualified candidates by having competitive pay, good employee support via training, recognition and quality products. Being very thorough in your interview process is key. With any candidate, experienced or otherwise, being very clear on what your business goals are, what the expectations are going to be and also learning what their career goals will help you learn more about them.