About David

DAVID® Pregnancy and Ovulation series thrive to improve the likelihood and quality of conception and contraception. The DAVID® brand is developed by Runbio Biotech Co., Ltd established in 2001. Runbio Biotech pursuits the strategy of applying scientific and technological innovation into products, and has earned a trusting reputation among customers in a global setting.

Colloidal gold
diagnostic technology

As a well-known colloidal gold diagnostic reagents manufacturer, Runbio Biotech is equipped with GMP and international standard facility. Our equipment includes 10 large-capacity American BACKMAN high-speed refrigerated centrifuges, 10 American BIODOT new three-dimensional spray point platform systems, 5 sets of fully automated protein chromatography purification systems and 100,000-level air purification systems.

Biological reagent diagnostic membrane

aka materials used on the diagnostic test strip's display window

Runbio Biotech made major breakthroughs in the polymer products filed, including the ability to manufacture premium quality biological reagent diagnostic membranes. To date, the company has won a number of national invention technology patent awards (patent numbers: ZL200410088826.4, ZL200510030066.6, ZL200510030065.1), among which the compound levonorgestrel transdermal contraceptive patch project (reference number: 2006BAI03B08).


When can I test with DAVID One Step Ovulation Test?

Check out our NEW DAVID APP to calculate your fertile window and to a great start of knowing more about your menstrual health! Before testing starts, the length of the menstrual cycle should be determined prior testing. This is the number of days from the first day of menstrual bleeding to the day before the next bleeding begins. If the length of your cycle varies each month by a few days, simply take the average number of days in the last three months. Starting from and including the first day of the last period, count ahead the number of days indicated in the previous step. This is the day on which testing should begin. If your cycle is irregular, you may want to use your shortest cycle length when reading the chart.

I think I have become pregnant, what should I do?

Try using DAVID Pregnancy test, with over 99% accurate at detecting pregnancy from the day of your missed period. If you are pregnant you should see your doctor to advise what steps to take next.