Hi FateTrader.

Thanks for the link and the clarification in your post.

I guess the lowest voltage, least length of time and smallest current you can use with the recommended breaks and correct procedures outlined to give the required results and risk if you are experimenting unsupervised is the more preferred option if you are going to use such a device.

I think it would be prudent to note and record any findings, especially anything unusual.

I'm sorry if I come across like the 'H & S police' but I thought I best air my concerns considering this is a public forum, especially as epilepsy is in my family, etc.

I totally agree regarding drug side effects and toxicity. Some Doctors do dish them out like sweets which doesn't help the patient in the long term.
There are even disclaimers on flashing Led lights used in 'brainwave entrainment' gadgets and videogames, etc.

Regards.