also: はんがおメーク
noun
half-face makeup; makeup on only half the face
Refers to applying makeup to only one side of the face, often for comparison or demonstration purposes.
See also: メーク
美容系YouTuberが半顔メイクでビフォーアフターを見せてくれた。
A beauty YouTuber showed a before-and-after using half-face makeup.
半顔メイクの動画で、アイシャドウの効果がよくわかる。
In the half-face makeup video, you can clearly see the effect of the eyeshadow.
メイク is the general term for makeup; 半顔メイク specifically refers to makeup applied to only half the face.
Compound of 半顔 (half face) and メイク (makeup).