Cosmetics can be defined as products or substances that protect or enhance the
appearance or odor of a human body. Many cosmetic products include particulate material
or emulsions. Some examples of cosmetic products consisting of or including particulates
include facial powders, moisturizers, and lipstick. Particle size analysis of cosmetics is
used to study formulation, characterize raw materials, perform quality tests on end
product, and potentially determine the amount of nano-particles in a product. 新一代的高性能激光粒度分析仪
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