HilinLP offers products and services that improve a woman's general well being through unique reproductive health education combined with simple and effective tools. Our customers report gaining peace of mind, freedom of choice and confidence from using our products. We empower women to develop new habits of monitoring their body's natural processes. KNOWHEN® Fertility Testing & Monitoring Products. Family Planning...Keep It Simple, Keep It Natural #1 Advanced Ovulation Test Kit Easy, Accurate, Reusable Having an innovative, easy to use, saliva ovulation fertility test with 98.9% proven clinical accuracy in the USA, is the most natural way to determine your five most fertile days. KNOWHEN®’s Advanced Saliva Ovulation Test with a Fertility Monitor App gives you the power to understand and control your fertility cycle naturally. With the KNOWHEN® Advance Our Mission Hilin Life Products is committed to empowering women with the tools and knowledge they need to take control of their fertility and health-related issues. We are a fast-growing dynamic company with products designed to help women get back to a natural way of life. Our Values We are creating the next generation of empowering health products by combining scientific accuracy with a holistic natural approach. We support the use of eco-friendly materials and all our facilities are ISO 13485 certified to assure the highest quality standards for our medical device manufacturing. Our Solution The KNOWHEN® Saliva Fertility Test is 98+% accurate and is the most natural way to know when you're ovulating. KNOWHEN® Ovulation Tracker App The personalized Fertility Monitor App features a calendar with dates color coded based on your ovulation results to help you keep track of your unique fertility and ovulation cycle. You can use the "intercourse" button to track each day’s sexual activity. Press "Save" after selecting your input. All your future information will continue to be saved on the KNOWHEN® secure server.