Bio-identical hormones are hormones that are identical in biochemical structure to what the human body produces.

By definition, a hormone is a substance in the human body that is produced in one organ, then travels to another area to exert its biological effects. Bio-identical hormones are most commonly used in reference to hormone replacement for women but can include male hormones, adrenal hormones and thyroid hormones.

Estrogen and progesterone are female hormones produced in the ovaries. They then travel to the uterus, vagina, breasts and other areas. They exert their biological effects by stimulating egg development, building up the uterus and vaginal lining and stimulating breast development.

Testosterone is a male hormone produced in the testes. It travels throughout the body to exert its biological effects. It stimulates muscle development, hair growth, libido and sperm production.

Cortisone is a hormone produced in the adrenal glands and reduces inflammation throughout the body. It decreases white blood cell activity and calms the immune system. It can help to relieve allergic symptoms throughout the body.

Thyroid hormone is produced in a thyroid gland located in the front of the neck. It produces the hormone thyroxine, which regulates metabolism throughout the body. It affects body temperature, breathing and heart rates, cell growth and development, digestion and mood.

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