As a way to indirectly investigate the effects of lubricating products used by infertile women during intercourse on sperm quality, semen from 22 normospermic men was tested against several common lubricants (Pre-Seed®, Astroglide®, K-Y® Sensitive®, K-Y® Warming®, and K-Y® Tingling) and natural oils (baby, canola, sesame, and mustard) at 0, 5, 30 and 60 minutes. Pre-Seed and three of the oils (baby, canola, and mustard) had no deleterious effect on sperm.SOURCE:
Sandhu RS, et al. In vitro effects of coital lubricants and synthetic and natural oils on sperm motility. Fertil Steril 2014;101:941-944.