How does the Modern Fertility Ovulation Test work?

The test detects luteinizing hormone (aka LH) in your urine. If LH is present in your urine, it attaches to the antibodies inside the test. When LH and antibodies meet, the test line darkens — the darker the line, the more LH there is in your urine.

Unlike other ovulation tests, you'll be able to match the shade of your test line to the corresponding LH concentration level to get even more insight into your cycle.

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