Common mistakes when texturing cosmetics 3D models usually include ignoring material-specific properties, overloading unnecessary details, and misaligning UV maps.
Ignoring material specificity—like making a matte lipstick glossy or a metallic compact flat—ruins real-world believability. Overloading details (e.g., too many scratches on a new eyeshadow palette) makes products look worn instead of pristine. Misaligning UV maps causes textures to stretch (e.g., a foundation bottle logo) or tile awkwardly.
To avoid these, reference real cosmetics for material and detail accuracy, and test textures in product-like lighting (e.g., studio lights for perfumes) to catch issues early.