A familiar tack of Twine advocacy pieces: take some problematic social issue, particularly as expressed through games, and make it grotesque and unsettling. In this case, it’s a satire/re-appropriation of beauty-oriented games targeted at young girls: beauty products are presented as uncanny magic, and have actually-transformational results with strange consequences. There is a judgy magic mirror.
Mechanically, it’s a Sorting Hat kind of game: your choices of beauty product determine which of several branches you find yourself going down, most of which are pure-choiceless. Although the results are weird and are at least informed by Twine’s strong taste for body-horror, they don’t get so visceral as to make the piece unsuitable for its ostensive audience; and the story progresses away from its beauty-myth opening into fantasy adventure that’s only tangentially related. The on-the-nose theme and long linear sections could easily have rendered the piece tedious, but it’s buoyed up by a pleasant Diana Wynne Jones-ish ordinariness-of-the-fantastic charm.