By drinking this essence you become a cosmic entity of incredible power:
*You gain one full body resculpt to your desired or ideal appearance, even non-human or physically impossible forms.
*If you wish, you can have Galactus ability of being seen with different appearances baseated on who sees you.
*Instead of flesh and bone your body is now made of pure power given form, you are immune to the passage of time never becoming old, ill or weak, posses limitless levels of strength and durability enough to make black holes no more than annoying and move them around with nothing more than a nudge. You lose all mortal needs of air, food, water and sleep if you didn't noticed yet.
*Your mind becomes equal to your cosmic body allowing you to learn anything to master level at a fraction of the time and do calculations beyond any quantum computer, you also have knowledge of the technology used by the original World Eater.
*You also can move and fly at FTL speeds.
*Your height is increased, in your base form you are easily the size of a skyscraper and you may change your size and mass at will, anything between the size of human and planets.
*You gain access to the Power Cosmic, a limitless god-like power that allow you to reshape reality as you wish, you can generate and manipulate matter, energy and life at will, absorb energy, create force fields, use special senses beyond what a normal human can experience, manipulate souls, teleport and even raise the dead.
*You may bestow a small piece of your power cosmic to empower a being with powers of your choice, you may call this power back to you at any time.
*You are capable of creating a Ultimate Nullifier, you will need to focus a huge part of your energy in a complex construction, and building one will make you near empty for a extend period of time.
*Unlike Galactus, your energy will restore by itself with time, only needing you to resist the hunger with your willpower. You also have fully control over your energy body not requiring a special suit to control it.