Eka Mukhi Rudraksha is the most powerful among all rudraksha. Eka Mukhi rudraksha is other facet of Lord Shiva.Rudraksha is known as a very powerful and mystical bead of Hindu religion.Ek Mukhi rudraksha is rarest of all Rudraksha Lord Shiva the deity of Eka Mukhi Rudraksha blesses a person with  salvation and liberation. The word Rudraksha is derived from two words that are:
Rudra and Aksha- Rudra means to weep and Aksha means eye .So it represents the tears of Lord Shiva himself.

Eka Mukhi Rudraksha is considered king of all rudraksha and signifies pure consciousness. Lord Shiva the ocean of impeccable goodness and Godliness and the significator of Satyam, Shivam, Sundaram. Astrologically Eka Mukhi Rudraksha reduces the malefic effect of sun and ketu. Eka Mukhi Rudraksha also helps a person to attain highest position in life. It has a very positive effect for a person in medical profession. It helps a person to attain mental balance and concentration. Eka Mukhi Rudraksha comes in the shape of half cashew nut. A round Eka Mukhi Rudraksha (Gol Dana Rudraksh) is very rare to find.

SIGNIFICANCE OF ONE MUKHI RUDRAKSHA
It washes all sins of the wearer. 

It blesses a person as Goddess lakshmi.

It enhances the knowledge about supreme power and diminishes worldly attachment. A person attains remarkable capacity of self control.

It cures a person of Heart disease, Blood pressure and Diabetes.

It increases financial status of a person and worldly affairs.

It is a tool to achieve liberation / Moksha.