Mitsubishi Materials Corporation and Rio Grande Jewelry Supply commissioned several tests from independent scientific facilities. The reports, presented below, show no health issues for normal use of this product or materials associated with it.

As with any craft product or process, individuals with special concerns should take responsibility to develop methods consistent with their situation. People with asthma or allergies should insure firing of PMC is done with good ventilation. Although it is rarely needed, appropriate protection should be taken by those with sensitive skin. Though PMC presents no known health risks, women who are pregnant or who may become pregnant should consult their physician if they have concerns.