Fertility doctors issue warning over sperm-friendly lubricants

Products sold as fertility-friendly slow sperm down and could 'hinder' conception, shows South African study

Doctors working in fertility medicine are warning that lubricants sold as sperm-friendly may actually hinder rather than aid conception.

A South African study led by obstetrician Dr Johan Markram has assessed the effects of five lubricants — OptiLube, Pre-Seed, Yes Baby, olive oil and egg white on sperm motility.