Citrate de tris(tétraméthylhydroxypipéridinol)
Tris(tetramethylhydroxypiperidinol) citrate

Ingredients · Not for the smell

Tris(tetramethylhydroxypiperidinol) citrate

Say itTRIS SIT-rayt

Odorless.

What it is
There to carry, keep or colour the perfume, not for its smell.
What perfumers do with it
Neutralizes light-made radicals so dyes and scent molecules last longer on the shelf
Worth knowing
Works differently from a UV filter: instead of blocking light, it cleans up the damage light starts.
Known in
La Vie est Belle (Lancôme, 2012); Twilly d'Hermès (Hermès, 2017)
Also called
light stabilizer (HALS); hindered-amine light stabilizer

On the label of 110 of the 1080 perfumes read so far

Good GirlCarolina Herrera · printed “Tris(tetramethylhydroxypiperidinol) citrate”La Vie Est BelleLancôme · printed “Tris(tetramethylhydroxypiperidinol) citrate”Miss DiorDior · printed “Tris(tetramethylhydroxypiperidinol) citrate”ParadoxePrada · printed “Tris(tetramethylhydroxypiperidinol) citrate”Donna Born in RomaValentino · printed “Tris(tetramethylhydroxypiperidinol) citrate”Uomo Born in Roma IntenseValentino · printed “Tris(tetramethylhydroxypiperidinol) citrate”

Sources