The one mukhi rudraksha is the most auspicious of all rudrakshas but it is the most misunderstood among allrudrakshas. If someone compiles the anecdotes on this varietya full book can be written on it. I am narrating some of myobservations on this. Readers must realise that the propertiesmentioned are of the genuine one mukhi rudraksha fromNepal or Indonesia.

Shape and Size
The one mukhi rudraksha from Nepal, if at all found, shallbe similar in shape but smaller compared to the two  mukhi  variety, also from Nepal. (It will be oval in shape and slightlyI flat and having the shape of an eye when viewed from thesides). It may be 10 mm to 15 mm in length It shall not beround in shape as per the natural configuration discussed andsummarised in chapter 4. On the contrary; it may be slightlyelliptical, but should not be confused with the Chandrakarvariety. The beads of the Nepal variety shall have a naturalhole in the centre. On the shape, a variation is not ruled out.Round bead having one face only may he due to undevelopedand such rudraksha is available from some trees. Although X-ray study reveals more than one compartment, still somepeople accept these as “genuine" one mukhi.

fino qui ho tradotto il 23/10/2010
The Indonesian one mukhi rudraksha is very small, 5 mm to 8 mm in length and 3 mm to 4 mm in diameter. It  has the shape of a thick rice grain. One mukhi is complete on  one side and on the other side there is a partial closure linejust near the mouth. Only one seed occurs inside theIndonesian one mukhi rudraksha, which is almost similar inlooks to the Indonesia variety of two mukhi rudraksha , theonly difference being that in one mukhi only one line iscomplete, while in two mukhi, one can clearly see two complete lines. One mukhi is slightly smaller in size, slightlyflatter and shorter than the two mukhi. This passes the X-raytest.One mukhi Chandrakar belongs to E. tuberculatus Roxb variety is just an alternate to Rudraksha. It is now widely used with many species finding way in themarket. Fakes, wood-plastic molded and cut-and-paste types arealso being sold and therefore one should be careful about thisalternate also.   Properties 
The one mukhi rudrakshas is blessed by Lord Shiva HimselfIn Chapter 12, you will know more about this mighty HinduGod who is entirely lovable and worshipped in mythology asthe most powerful of the Gods, the creator of language,music, dance and Ayurveda and as the lord of love andresponsible for the cycle of birth and death. In fact,Hinduism and its philosophy and thoughts cannot beunderstood fully without understanding the Shaiviteprinciples.One mukhi rudrakshas washes away the sins as serious as‘Brahman hatya’ (killing of a Brahmin). It enhances knowledgeabout the Supreme (Brahma Gyan) and the wearer is known tol win over his senses. He then engages himself in Para-Tatva:
(Shiva Tatva). It is also known to give eternal bliss and nirvana (moksha) after death. At whichever place this rudraksha is worshipped, Goddess Lakshmi (Goddess of Wealth) bestows.
Her presence. It is the most auspicious rudraksha among allbeads and not only does it bring the wearer or worshippercloser to Shiva (spirituality and kindness) but also fulfils all his or her desires in the material world. The wearer also gainspowers of concentration and enjoys inner peace. 
As per Shiva Puran, one mukhi rudraksha offers worldlypleasures and salvation and therefore has a unique placeamong all the rudrakshas. It gives leadership qualities and skills to cope with stressful situations and hence is a preferred  choice for those who assume leadership roles or head any i`organisation. The controlling planet of this rudrakshas is Sun. All negative effects posed by this planet on a person are got over bywearing this rudraksha. Its use is said to cure headache, eyedefects, piles and diseases of the liver and skin. 
As per recounts of various experiences by people, if a person has any habits (specially vices like smoking, drinking, drug abuse, tobacco chewing, over eating, excessive talking and the like), wearing a one mukhi (in these cases Indonesian rudrakshas can be used) helps him or her in overcoming such habits. A full transformation takes place as the wearer quits these vices or habits with little efforts and the lifestyle gets changed permanently .
Who should wear?  All adult persons can wear this rudraksha. It can also be kept in a puja room or altar, where regular worshipping can be


done. Those who are addicted to habits or particular  lifestyles, which are not conducive to their physical and  mental well—being, can wear the one mukhi Indonesian rudraksha to come out of the predicament. If one wears more  than one bead, it is believed to be proportionately moreeffective. .One mukhi in Chandrakar form is a symbolic rudrakshaespecially for invoking the blessings of Lord Shiva and henceit can be worn by all or kept in a puja room. Unfortunately inadvertisement campaigns on TV channels and in salesi propaganda about Chandrakar, its source and type are notfully revealed and it is equated with the original one mukhirudraksha, which is not fair. The benefits are oftenexaggerated. Chandrakar is not E. Ganitrus Roxb, but is an  alternative for one mukhi rudraksha. As already mentioned  earlier it belongs to E. Tuberkulatus; Roxb variety .  Fake one mukhi rudrakshas is made either from two mukhi`  Bhadraksha or from the round Dehradun variety or from five  mukhi rudraksha of other regions. It is advised that once you  know that a rudraksha is fake, it is better not to wear it or evenkeep it in your home as it may increase negativities in theFil mind, particularly after you have known about it. Even iflii such a fake bead has been given as a gift or as a blessing by a  guru or a spiritual person (who may give it out of ignorance),it is advisable to discard it in a river, sea or put in a pond/well.
A one mukhi bead is worn by persons requiring favour of  Sun as a planet or to remove its malevolent effects, or those  seeking devotion to God, minimising attachments to theworldly things and ultimately hoping to attain nirvana.


Mantras to be recited for one mukhi rudraksha


Om Hreem Numub (Shiva Puran)Om Om Drushaan Namah (Mantra Maharnava)    Om Rudra (Padma Puran)  Mahamrityunjaya Mantra (Brahajjalopanishad)  Om Namah Shivaya