抗老版｜视频A
High-resolution scientific talking-head video,
fixed camera, stable framing,
locked focus with full depth of field,
everything in focus, no background blur,
high shutter speed, no motion blur,
bright, evenly diffused high-key laboratory lighting,
low contrast, neutral white balance, clean clinical look,
young adult female researcher speaking to camera,
upper body visible,
wearing a standard laboratory white coat, fully worn and closed,
underneath a white collared dress shirt with a classic pointed collar,
all front buttons fully fastened up to the collar,
clean and standardized professional appearance,
hands visible during speech,
very fair and uniform skin tone,
synthetic reference skin surface,
extremely smooth skin texture,
completely hairless hands,
absence of visible pores, wrinkles, or blemishes,
objective, reference-quality rendering suitable for cosmetic laboratory communication,
clothing configuration fixed across all frames
Negative prompt:
blur, soft focus, depth of field, bokeh,
motion blur, camera shake,
cinematic lighting, film grain, noise,
beauty filter, over-smoothing,
open collar, unbuttoned shirt,
hand hair, hair follicles, visible pores,
dark or uneven skin tone
@liuyan9（化妆品研发工程师）在上述设定下进行演示。
实验台为不锈钢材质，放置两片载玻片（左侧干燥脱皮状，右侧柔润完整）、显微成像笔、棕色避光真空按压瓶。
她同步开口说：
“抗老精华一上脸就脱皮？”——指尖轻触左侧脱皮载玻片；
“不是A醇太猛，是释放太炸。”——用显微成像笔对准两侧载玻片，屏幕显示角质剥落 vs 平滑表皮；
“问题不在浓度，而在没做缓释，瞬时释放刺激角质。”——收回手，画面聚焦台面细节。