Blessed Thistle contains bitter compu=ounds, astringent comounds,  potassium, sodium, calcium, manganese, cinincin, antioxidant flavonoids. polyacetylene, essential nutrients, and plant lignans.

Blessed Thistle is commonly used by females and nursing mothers.

This herb is an excellent whole-food source of both sodium and potassium.

It is used, most commonly, to enrich and increase milk in nursing mothers. 

It may also help support balanced and healthy female organs and hormones.

Other uses:

Blessed Thistle helps with painful menstrual cramps.

Blessed Thistle strengthens heart and lungs.

It takes oxygen to the brain and strengthens memory.

It also brings circulation to every part of the body.

It has been used throughout the years as a digestive tonic.

It offers excellent support for your digestive health.

It helps treat a wide range of stomach complaints.

It is a great herb for detoxifying the body in general and the liver in particular. 

It is a key ingredient in herbal formulas designed to help you cleanse the liver. 

Blessed Thistle contains various antioxidants that help keep the skin looking fresh and young.

A side note: 

Not recommended during pregnancy.