Red Essence

From the Super Mario Wiki

Mario using a Red Essence.

A Red Essence is a drink in a red-colored soda cup in Super Mario RPG: Legend of the Seven Stars that, when used in battle, makes the character (Mario, Mallow, Geno, Bowser, or Toadstool) invincible for at least three turns. Rarely, a Red Essence will last for up to five turns, and the player may also be able to get a freebie. This may come in handy when fighting tough bosses, such as Jinx or Smithy. The Red Essence is available in the Inn in Nimbus Land given by Toad after Mario wakes up from a nightmare, and there is a hidden one in the Forest Maze near the save point.

Super Mario RPG: Legend of the Seven Stars

Protagonists	Bowser \| Geno \| Mario \| Mallow \| Princess Toadstool
Major Bosses	Axem Rangers \| Bowyer \| Bundt \| Dodo \| Exor \| Mack \| Punchinello \| Smithy \| Valentina \| Yaridovich
Minor Bosses	Belome \| Boomer \| Booster \| Cloaker \| Count Down \| Croco \| Czar Dragon/Zombone \| Culex \| Ding-A-Lings \| Domino \| Earth Link / Mad Adder \| Factory Chief \| Grate Guy \| Gunyolk \| Jinx \| Jonathan Jones \| Knife Guy \| King Calamari \| Megasmilax \| Shelly / Birdo \| Smilaxes
Locations	Bandit's Way \| Barrel Volcano \| Bean Valley \| Belome Temple \| Booster Hill \| Booster Pass \| Booster Tower \| Bowser's Keep \| Factory \| Forest Maze \| Grate Guy's Casino \| Kero Sewers \| Land's End \| Mario's Pad \| Marrymore \| Midas River \| Moleville \| Moleville Mines \| Monstro Town \| Mushroom Kingdom \| Mushroom Way \| Nimbus Land \| Pipe Vault \| Rose Town \| Rose Way \| Seaside Town \| Star Hill \| Sunken Ship \| Tadpole Pond \| The Sea \| Vista Hill \| Yo'ster Isle
Items	Armor \| Able Juice \| Bad Mushroom \| Bonus Flower \| Bracer \| Bright Card \| Carbo Cookie \| Crystalline \| Earlier Times \| Elixir \| Energizer \| Fire Bomb \| Fireworks \| Flower \| Flower Box \| Flower Jar \| Flower Tab \| Freshen Up \| Froggie Drink \| Goodie Bag \| Honey Syrup \| Ice Bomb \| KerokeroCola \| Lamb's Lure \| Lucky Jewel \| Maple Syrup \| Max Mushroom \| Megalixir \| Mid Mushroom \| Moldy Mush \| Muku Cookie \| Mushroom \| Mystery Egg \| Pick Me Up \| Power Blast \| Pure Water \| Red Essence \| Rock Candy \| Rotten Mush \| Royal Syrup \| See Ya \| Sheep Attack \| Shiny Stone \| Sleepy Bomb \| Star Egg \| Wallet \| Wilt Shroom \| Yoshi-Ade \| Yoshi Candy \| Yoshi Cookie
Enemies	Alley Rat \| Amanita \| Ameboid \| Apprentice \| Arachne \| Armored Ant \| Artichoker \| Bahamutt \| Bandana Blue \| Bandana Red \| Big Bertha \| Birdy \| Blaster \| Bloober \| Bluebird \| Bob-omb \| Box Boy \| Buzzer \| Carroboscis \| Chained Kong \| Chester \| Chewy \| Chomp \| Chomp Chomp \| Chow \| Cluster \| Corkpedite \| Crook \| Crusty \| Doppel \| Dry Bones \| Enigma \| Fautso \| Fink Flower \| Fireball \| Forkies \| Frogog \| Geckit \| Gecko \| Glum Reaper \| Goby \| Goomba \| Goombette \| Gorgon \| Greaper \| Gu Goomba \| Guerilla \| Heavy Troopa \| Hidon \| Hippopo \| Hobgoblin \| Jabit \| Jawful \| Jester \| K-9 \| King Bomb \| Kriffid \| Lakitu \| Leuko \| Machine Made \| Mad Mallet \| Magmite \| Magmus \| Malakoopa \| Mastadoom \| Mezzo Bomb \| Micro Bomb \| Mokura \| Mr. Kipper \| Muckle \| Mukumuku \| Ninja \| Octolot \| Octovader \| Oerlikon \| Orb User \| Orbison \| Pandorite \| Pinwheel \| Piranha Plant \| Pounder \| Poundette \| Pulsar \| Puppox \| Pyrosphere \| Rat Funk \| Reacher \| Remo Con \| Ribbite \| Rob-omb \| Sackit \| Shadow \| Shaman \| Shogun \| Shy Away \| Shy Guy \| Shy Ranger \| Shyster \| Skytroopa \| Sling Shy \| Snapdragon \| Sparky \| Spikester \| Spikey \| Spinthra \| Spookum \| Springer \| Star Cruster \| Starslap \| Stinger \| Straw Head \| Stumpet \| Terra Cotta \| Terrapin \| The Big Boo \| Tub-O-Troopa \| Vomer \| Wiggler \| Zeostar