noun
hair styling product; hairdressing
Refers to products used to style or set hair, such as pomade, gel, or hair oil. The gloss 'hairdressing' can also refer to the act, but the primary meaning is the product.
彼は整髪剤で髪をきれいに整えた。
He styled his hair neatly with a hair styling product.
この整髪剤は無香
This hair styling product is fragrance-free and easy to use.