Everteen Rapid Fertility Test Kit is used for detecting the luteinising hormone (LH) surge to indicate the most fertile window in a woman’s menstrual cycle. Providing a convenient, do-it-yourself testing method at home, it works by identifying the LH surge that typically happens 12 to 36 hours before ovulation. This surge triggers the release of an egg, marking the most optimal time for conception. The kit provides results in just 5–20 minutes and includes five individually packed test devices, each with a dropper and desiccant to preserve quality.