A person looking for a complementary therapist encounters a confusing mixture of qualifications, registers and titles. The inconsistency is not accidental; it follows from how professional regulation is built.
Regulation attaches to titles, not to activities
Most systems protect a name rather than a practice. Calling yourself a physiotherapist or a psychologist requires registration, while the underlying activities are often not restricted in the same way.
A therapy that never acquired a protected title therefore sits outside the statutory system, however widely it is practised.
This produces the odd situation where the seriousness of a treatment and the strictness of its regulation are only loosely connected.
Voluntary registers fill the gap unevenly
Where no statutory regulator exists, professional associations usually create their own registers with training standards, insurance requirements and complaints procedures.
Membership of such a body is meaningful, but it is voluntary, and a practitioner removed from one register is not necessarily prevented from continuing to work.
Several competing associations often exist for the same therapy, each with different entry requirements, which is why comparing credentials across practitioners is so difficult.
Specific acts are restricted regardless of title
Certain activities are controlled directly: prescribing medicines, making particular medical claims in advertising, and treating conditions that are legally reserved.
These restrictions apply to everyone, which means a practitioner without a protected title still operates inside real legal limits even where their therapy is unregulated.
It also explains why practitioner websites are often carefully worded, since claims about treating named conditions are the part most likely to attract enforcement.
Training length says less than it appears to
Course durations vary enormously within the same therapy, from weekend certificates to multi-year diplomas, and both may lead to the same job title.
Without a common standard there is no external benchmark against which a given course can be placed, so the length of training is not directly comparable between schools.
Accreditation of the course by a recognised body is generally more informative than the number of hours, because it implies an external assessment of content.
What this means for choosing
The practical questions are narrow ones: which register the practitioner belongs to, whether they carry insurance, what the complaints route is, and how they respond to a question about the limits of what they offer.
A practitioner who is clear about what their work does not address is describing the boundary that regulation would otherwise define for them.
Rules also differ substantially by country and change over time, so anything read about one jurisdiction should not be assumed to hold in another.