They need doctor to endorse the product

That is dangerous

My biotechnology degree told me alkaline water or kangen water doesn't work

Placebo effect

Try this:

Get a person with diabetes, high blood pressure or gout
Give them alkaline water but without control their diet (eat as normal)

Sure nothing will happen

Patients already diagnosed with health issues will automatically control their diets n take medicines to control their conditin.
Therefore drinking alkaline water will do nothing