Pseudoscience? Scam?

It seems lately my parents are falling for such unprovable pseudo-science products such as quantum pendants emitting so-called 'scalar energy' (I must admit I did wear such a pendant when I didn't know better) and also infra-red emitting stones supposedly to cure back pain. It pains me that being a Masters graduate in Physics I can not argue intelligently for or against such pseudo-science (for my Masters is in fact in a different specialization of semiconductor physics, but I should not let that hamper my quest for knowledge).

The 'scalar energy' pendant has apparently been proven by a doctor (?) to not do anything (?). Question marks indicate the questionable credibility of the poster making the claim, as no data nor CV of the poster is available.

Here's a video of a small-scale blind test that shows the Power Balance Bracelets are ineffective:

Now to the infrared emitting stones...

From , "Far infrared ray is well absorbed and has powerful penetration. So it delivers heat deeper into the body. It is beneficial to human among other kinds of visible ray. [Visible rays are beneficial to human body??? - pseudoscience alert!!!] It uses novel serpentine(known for its high emission rate of far infrared rays) attached moxibustion(through which the infrared rays emit) for effective penetration deep into the body."

The serpentine stone used in the Korean product above is described here . Am not sure of its infrared emission/transmission properties.

This post is an early compilation of reading materials. I might return to develop these into more coherent arguments in future -- for now it seems a pointless waste of energy. Furthermore, if my parents are responding positively to a placebo effect, then what's to complain?