the.com/luminizer

means A cosmetic product—usually a liquid, powder, or cream with light-reflecting particles—applied to skin to create a radiant, glowing highlight on cheekbones, brow bones, and other high points of the face.

from A straightforward 20th-century coinage from 'lumin-,' the Latin root for light (as in 'luminous' and 'illuminate'), fused with the agentive suffix '-izer,' the same ending that turns 'moist' into 'moisturizer.' The word follows a well-worn cosmetics-industry pattern of naming products after the verb they promise to perform on your face — it doesn't just add light, grammatically speaking, it *does* the luminizing.