TEST RESULTS ARE IN . . .
. . . but they are not earthshaking, nor bloody. I applied a light coating of Dermoplast about five minutes ahead of any lather. I noticed my lips became slightly numb, but nothing dramatic on the face skin. I did not notice an appreciable improvement on the first pass, which still left significant stubbel.
Before the second pass, I applied a second coat of Dermoplast. Again, no significantly noticeable improvement in comfort.
I did not add any more Dermoplast. I made a third and fourth lather, and the fourth pass left a bbs face - however, I cannot attribute it to the Dermoplast.
The next time I receive a presription for xylocaine, which has a stronger anesthetic, I may try it again. However, I give the Dermoplast preshave two thumbs down. Nothing ventured, nothing gained.
RalphS