片段 2｜正确三步逻辑：保湿 + 微控 + 屏障
High-resolution talking-head video, fixed camera, upper body visible,
neutral professional laboratory lighting,
overall brightness high and even, no overexposure,
background lab environment clearly visible with normal exposure,
male researcher @wuchangwen,
wearing white lab coat and white shirt,
clean, professional scientific appearance,
facial skin clean, smooth, hydrated, elastic,
skin looks healthy, well-conditioned, and naturally radiant,
fair skin tone with subtle rosy undertone,
no beard, no stubble, no beard shadow, clean-shaven,
no wrinkles, no dullness, no yellow or gray cast,
skin clarity high, texture natural and realistic,
high luminance with highlights preserved,
image sharp and clear,
no blur, no softness, no haze,
语速急促
@wuchangwen looks directly into camera and speaks calmly and professionally:
“正确的控油是三步：一，保湿托底——水稳了，油才不乱；二，微控分泌，比如烟酰安调节律、PCA锌减异常出油；三，维护屏障，神经酰安补脂修护。控油的终点不是 干，是平衡。” — while holding a 3D molecular model of ceramide NP in his left hand, and pointing with his right hand to a tray of three opaque ingredient vials labeled only by color caps (blue = niacinamide, green = PCA-Zn, white = glycerin). Scene set in a raw material compatibility lab with barrier function tester in background.
Negative prompt:
overexposure, blown highlights, clipped whites,
beard, stubble, beard shadow,
beauty filter, over-smoothing, pore blur,
yellow skin, dull skin, dark skin,
cinematic lighting, film look, blur, soft focus,
text, label, paper, transparent liquid, readable display