noun
brilliantine
A scented hair dressing or pomade used to give hair a glossy, well-groomed appearance. Often associated with classic or vintage styling.
彼は髪にブリリアンティンをつけて、きちんと整えた。
He applied brilliantine to his hair and styled it neatly.
ヘアワックス is a modern styling product with more hold and a matte finish, unlike the glossy finish of ブリリアンティン.
Borrowed from English 'brilliantine', a hair product popular in the early to mid-20th century.