All the certificate programs that focus on developing coaching or therapeutic skills are basically skill building programs. None of these courses be it Hypnosis, NLP, CBT, REBT, TA or CHP are regulated by any regulatory authority.
So all certificates are just that certificates. They do not have any legal validity… but that doesn’t make them illegal either. Whether you can legally use these skills or not depends on the area in which you are applying these skills.
So for example if you are promoting yourself as a life coach or a mind coach or a behavioural trainer and staying within the limits of what these people can do, you can freely use these skills as these titles do not have any legal restrictions. But if you are promoting yourself as a doctor or a psychologist or a psychiatrist and handling cases related to intense emotions or psychosomatic issues or mental disorders, then you must fulfil the educational prerequisites that are required to use these titles and work with these problems.