Do you know why he thinks that DHEA is unsafe? It seems like the DHEA in DMSO that you have in pansterone is safe in 2-6 drop doses--did you get any feedback on the pansterone dosage from him? Do you think that potentiation caused by DMSO makes DHEA particularly troublesome?
I think he said it on one of his articles - he is concerned about the link between DHEA and Alzheimers (AD). People with AD have several-fold higher brain levels of DHEA than healthy controls. Whether the DHEA is there to protect the brain is not known. But given its propensity to turn into estrogen (which the brain is capable of synthesizing locally from DHEA) during stress and disease, I think he is just being cautious until more is known. But you can ask him, he usually responds to questions about DHEA.