True Blue Spell

The True Blue Spell is a magic spell that Papa Smurf used on Smurfette in order to make her a real Smurf. This was mostly used in the cartoon show and in Sony Pictures Animation's The Smurfs movie series, as the comic books have Smurfette's transformation into a real Smurf be through "plastic smurfery".

Smurfs (TV series)
The spell appears in the cartoon show episode "The Smurfette", which is used after Smurfette reveals that she was created by Gargamel in order to destroy the Smurfs. The ingredients in the spell include: Once the ingredients have been added, an incantation must be said before a wand is used to finish the spell. The incantation goes:
 * a touch of venus
 * add moonbeams for light
 * add some smurfroot... to smurf her up right
 * And now with the power of all I command! Smurfette become Smurf and before me stand.

The Smurfs 2
The spell also appears in the 2013 movie, The Smurfs 2, but the ingredients required are different. The ingredients include:
 * Four hopeful thoughts
 * a dab of royal jelly
 * mimosa pollen
 * a drop of mink oil
 * one loving truth

Empath: The Luckiest Smurf stories
It is unknown what the spell in the EMPATH: The Luckiest Smurf story series actually contains for all the ingredients of the formula with the exception of a Smurf's rib bone which Papa Smurf had earlier extracted from Empath years ago. What is known about the spell is that it does involve reverting Smurfette's original form back to being inanimate blue clay while her spirit form is suspended above the clay until the spell was complete, and then her spirit melded itself back into the clay and morphed into her current form.

A later spell cast on her by Baby Smurf after Papa Smurf's original spell was no longer working to keep her in the form of a real Smurf had separated Smurfette into two forms: the Smurfette who was a real Smurf, and the Morph being who possessed her original form and called herself Morphette. .

Hero: The Guardian Smurf stories
The spell in the HERO: The Guardian Smurf story series follows the same formula presented in The Smurfs 2. It first appeared in Smurfette's debut story "The First Female Smurf", when Papa Smurf used it on Smurfette in order to make her a real Smurf. It appeared again in the story "Wonder the Naughty", when Wonder had no choice but to go back to the village undetected and get the formula in order to save her new friends, the Naughties, after Gargamel refused to feed them.

Glovey Story
The spell appears in the Smurf Me Up series, due to its continuity with the televison series of The Smurfs. The spell requires the very same ingridients Papa Smurf used to transform Smurfette into a real Smurf. The spell is also used in the Naughty Naughty story, where an evil entity of Gargamel manifests and uses the spell to transform the formers Naughties Vexy and Hackus into real Smurfs in order to extract their essence. The Spell makes an appearance in the story Return of Glovey Smurf, where Papa Smurf uses the spell to turn a transformed Glovey back into his Smurfy self again.