Helen Denise ,CEO of the HilinLife Products, is the originator of the category of SALIVA based ovulation testers in the USA.
In 1999 she developed a well-known device MaybeMOM®. After this video had appeared on the TV and Internet this small, elegant ovulation microscope quickly was copied all over the world. New, higher quality device KNOWHEN® was developed In 2009, and it is improved, easier to use ovulation monitor with Educational CDs, mobile APP and free E-book.