From the manufacturer's website:
When you may be pregnant, the earlier you know, the better. Featuring First to Detect™ technology, the First Response™ Early Result Pregnancy Test is sensitive enough to capture scant amounts of pregnancy hormones to give you results 6 days sooner than your missed period.
The first few weeks of pregnancy are critical to fetal development, so early prenatal care is important for a healthy birth weight and the baby’s survival. The sooner you know you’re pregnant, the sooner you can begin making healthy pregnancy choices for yourself and your baby that include diet, nutrition and limiting your exposure to hazards.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.