To render a cosmetics 3D model, prepare a clean-topology model with product-specific textures (e.g., labels, glossy finishes) in Blender/Keyshot, set up soft lighting, adjust materials (glass for bottles, matte for tubes), then export the final render.
Focus on realism: Match materials to real-world properties (e.g., perfume bottle shine, palette texture) and use soft lighting to highlight details, like professional product shots.
For beginners: Start with pre-built material/lighting presets to practice, then refine details as you gain experience.