As a verb mattified
is (mattify).
As a noun mattifier is
a cosmetic designed to give the skin a matt or less shiny appearance.
mattified
English
Verb
(head)
(mattify) mattify
English
Verb
(of a cosmetic) to produce a matt effect or reduce the shiny appearance of the skin
References
*OED 2004 mattifier
English
Noun
(
en noun)
A cosmetic designed to give the skin a matt or less shiny appearance
Related terms
* mattify
* mattifying