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This article is about the Fairy Form. You may be looking for the dolls.

Sirenix is the second Fairy Form introduced in Season 5. It is parallel to Harmonix.


Daphne using her cursed Sirenix.

In Season 5, the Winx meet with Faragonda to discuss their newfound knowledge of their Believix powers being less effective underwater, and they learn that they must acquire Sirenix in order to defeat Tritannus. Faragonda tells them that Sirenix is an ancient power that was born of the magic of the oceans, and that no one has acquired Sirenix for a long time.

She informs that that in order to begin their quest, they must find the Sirenix Book, but the only person who knows its location is Daphne, Bloom's sister and the last fairy to acquire Sirenix. When Bloom asks Daphne about the location of the Sirenix Book, Daphne tells her not to look for it because it is dangerous. When the Ancestral Witches attacked Domino, she acquired Sirenix and was ready to use it against them but the Ancesral Witches had placed a spell on Sirenix and when Daphne tried to use it, it turned against her and caused her to become a spirit without a body. Bloom ends up persuading Daphne, who reveals that the Sirenix Book is in the Magic Archive of Alfea.

The Source of Sirenix is found in the cave where Daphne dwells in Lake Roccaluce which protects Sirenix and grants it to fairies who have completed the Sirenix Quest. Due to the curse, if a fairy does not complete the Sirenix Quest within one lunar cycle, they will lose their powers forever.

In Season 8, it is revealed that due to the magical ice on Dyamond, Sirenix can adapt to the area's weather, changing its form. As for now, only one variation of Sirenix was shown.

  • Crystal Sirenix: Appears when used at places of extreme cold.



The outfits consist of a sparkly mermaid skin-like top, a belt, scale-like colorful leggings with fins and boots with ribbons wrapped around them. The hair is in a ponytail, with highlight streaks and the hair changes its colors when they go underwater. The fairies also wear bands made of a piece of jewelry, flower, or marine creatures and ribbons around their arms, and a piece of jewelry in their hair. The wings are colorful and seashell-shaped.

The outfits still consist of a top and leggings with fins and boots, but instead of mermaid skin-texture, now it is scale-texture. The outfits in general are more colorful than the previously monotone designs. The cut-outs on the tops are removed, and altered outfits have more bands and ties and jewels on them. The accessories (hair and hands) are altered, they loose some aquatic traits. The hair styles are unchanged (or under extremely minor change), but the highlights are recolored to match with initial concept (Stella's highlights are now reddish pink and Flora's pink highlights are now visible). The hair no longer changes color underwater. There are short translucent frills on each side of the top, like on the Harmonix concept art. The wings are unchanged, aside from Bloom's being recolored.

The outfits borrows some elements from Lovix with winter-based theme. They wear colorful tops with snowflake-like geometric decorations, with fuzzy areas at the top and also fuzzy tutus-like skirts. They also wear fuzzy-edged fingerless gloves on both arms and plaid-like patterned leggings, geometric-decorated boots with fuzzy areas. They wear long, fuzzy-edged cloths, similar to Harmonix, on the back of the suit. The hair is the same as before, except it is decorated with sharp star-shaped jewels and thorns at the top. The wings are unchanged.

Dark Sirenix

The outfits consists of a body suit, a pairs of stiletto with fins, a glove made of the same material. They wear smeared makeup on their eyes and lips. Their hair is in high ponytails or pigtails, they also have tentacles on their backs. 


The Source of Sirenix


In order for a fairy to earn Sirenix, they must find the Gem of Self-Confidence, the Gem of Empathy, and the Gem of Courage. After that, they need to activate the magic spring of Lake Roccaluce by using the Source of Sirenix.

Dark Sirenix

It is unknown if a witch can earn Sirenix by completing Sirenix Quest or not as it is a fairy power. In the Trix's case, after Tritannus forced Daphne to tell him where the source of Sirenix power was, Tritannus headed to Lake Roccaluce to destroy the Source of Sirenix, so her Sirenix cannot be protected from being stolen by him. After he destroyed the source, Tritannus absorbed Daphne's Sirenix powers and used his trident to grant the Trix Sirenix powers, which were mixed with his pollution powers.

Sirenix Clues

The Sirenix Clues were riddles given to the Winx to find the gems of Self-Confidence, Empathy, and Courage.

  • Andros:

    With every twist and turn, the deeper you go until the Shimmering Shells sing with the ocean's voice.

  • Solaria:

    Venture where the dark depth of the ocean shine. A precious gem, self-confidence, lies in the deeps.

  • Melody:

    Like a ruby shining under the sea, corals are strings that you feel in a key.

  • Zenith:

    To find the gem, you must understand the message in the harp's music.

    The Winx had to understand the message in the Ruby Reef's music. It leads them to Data Bridge Castle in which Aisha, Bloom and Tecna have unity.

  • Linphea:

    Find the Flowers of the Depths. It answers only to courage.

  • Domino:

    Find the Yellow Reef and snatch courage from its jaws.

Magical Abilities

Sirenix grants its possessor access to the Infinite Ocean and gives fairies and witches the ability to use their magic easier in midair, on land, and underwater. It also helps them to swim faster.

In Season 8, it is revealed that their Cystal Sirenix power grants them another ability, the Crystal Sirenix light, which allows them to see the darkest part of the ocean.

Special Sirenix Powers

With Sirenix, a fairy has a power that can be used in specific situations. Every fairy has a different type of this power:


Every girl has a water bubble special effect when their wings flutter.

Sirenix Wish

Once gaining Sirenix, a fairy is given a wish which she can ask her Guardian of Sirenix to grant once she has pleased destiny.

Musa has never used her wish. It is also unclear if she has pleased destiny.

Sirenix Curse

Sirenix was cursed by the Ancestral Witches, turning Daphne into a disembodied spirit and Politea into a ravenous monster. The curse also caused the Sirenix power to turn against Daphne when she tried using it to defend herself from the Ancestral Witches. The Sirenix Curse could punish the possessor physically, as revealed when Tritannus was attacked by the Emperor's Throne and Daphne revealed that it is the effect of the Sirenix Curse. Later, by using her Sirenix wish, Bloom breaks the curse put on Sirenix.

Ways to Acquire

Known Sirenix Possessors





Dark Sirenix


Harmonix concept art.

  • The name Sirenix is based on the word "sirena", which is the word for Mermaids in Italian and many other languages.
  • After Sirenix was leaked at Comic Con, it was redesigned.
  • Sirenix adopted some ideas from Harmonix's concepts.
  • The fact that Sirenix has the ability to grant wishes may be derived from the fact that in Mythology, mermaids have the ability to grant wishes.
  • Sirenix is so ancient that it cannot be easily found in all known magic databases.
  • Aisha appears in all three episodes in which the Winx earn the three mystical gems to finish the Quest of Sirenix.
  • Sirenix is the first transformation where the fairies have highlights on their hair, with Tynix being the second.
  • In Season 5-6:
    • This is the first transformation to maintain its 2D poses in 3D.
    • During Musa's Sirenix 2D transformation, her arm ribbon first appears on her left arm, even though it supposed to be on her right arm. However, when she strikes her final pose, the ribbon is in the correct position.
    • Flora's Sirenix wings appeared to be smaller than the actual size in her 2D Sirenix final pose.
    • Stella's highlights are in pink in 3D transformation, but become purple in 2D one.
      • Later in Season 8's transformations, her hair gain reddish pink highlights.
    • Flora has pink highlights on her hair but they are not visible in neither of her transformations.
      • The highlights are added on Season 8's transformations
    • Stella's wings are upside down during her transformation.
    • This is the first Fairy Form in which Bloom's hair turns dark red, with the second being Bloomix and the third being Mythix.
      • However, in the redesigned and Crystal version, her hair retains its original orange.
    • This is the first Fairy Form in which the Winx's wings occasionally emit streaks of energy before casting a spell, with the second being Bloomix.
      • Sirenix (2D version) is currently the longest known transformation sequences to be featured in the series.
  • Musa is the only Winx who never uses her Sirenix wish.
  • This is the first transformation to be redesigned in Season 8.
    • It is also the only redesigned transformation to not have a final pose in both Sirenix variants.
  • Thus far, Sirenix was drawn in seven different art styles and it is the only transformation to be ever featured in every style that the show has explored throughout the years.
  • This is the first Fairy Form in which the Winx all have identically-shaped wings, with the second being Cosmix.
  • Sirenix is among the three transformations that will return in Season 8, the other two being Enchantix and Butterflix.
  • This is the second transformation to be reanimated in the new animation style in Season 8.
  • In Season 8, the girls' hair no longer changes their colors underwater for an unknown reason.
  • In Season 8, this transformation is solely used to breathe underwater.

Transformation Sequences

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