Answer: GEL

AnswerCrossword Clue
GELNewfangled candle material
GELHair goo
GELSalon stuff
GELStylist's stuff
GELSolidify
GELCome together
GELAgar, for one
GELHairstyling product
GELSilica ... (drying agent)
GELHair-care product
GELHair-salon application
GELPost-shower application
GELSalon substance
GELHair-raising stuff?
GELPetri dish filler
GELShaving-cream alternative
GELCoalesce
GELCrystallize
GELMaterialize
GELSalon application
gelgelatinous preparation used in styling hair
GELHelp for a bad hair day
GELSet
GELSome toothpaste
GELStylist's supply
GELToothpaste, perhaps
GELHair stiffener
GELMousse for the hair
GELTake shape
GELHair mousse
GELHair-care goo
GELHair stuff
GELHair-raiser
GELReact to pectin
GELToothpaste type
GELDo stuff?
GELRockabilly musician's styling product
GELStuff used for styling
GELProduct that makes hair crunchy
GELToothpaste, maybe