While he shaved and trimmed Dave, he made insultingly solicitous comments about Dave's skin needing a massage, suggested a tonic for thinning hair and practically insisted on a singe.
Dave's skin does not look too good. 
mnli hypothesis: Dave's skin does not look too good.  premise: While he shaved and trimmed Dave, he made insultingly solicitous comments about Dave's skin needing a massage, suggested a tonic for thinning hair and practically insisted on a singe.