Can Natural Progesterone Cream Lower Serotonin?

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Alternative Names

Progesterone - serum

Normal Values

Progesterone levels vary depending on when the test is done. Blood progesterone levels start to rise midway through the menstrual cycle, continue to rise for about 6 to 10 days, and then fall if fertilization does not result.

Levels continue to rise in early pregnancy.

This following are normal ranges based upon certain phases of the menstrual cycle and pregnancy:

  • Female (pre-ovulation): less than 1 ng/mL
  • Female (mid-cycle): 5 to 20 ng/mL
  • Male: less...
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