Red 7 Case Study – Defining the best process for cosmetic micronization

Particle size distribution (PSD) and uniformity are critical for cosmetic powders and the most common technique used is micronization to get the best, final product. Since PSD of powders determine the quality of products, the role of micronization is very critical.

Micronization can be done either on entire formulations, or on the single cosmetic ingredients.

micronization can offer several advantages when used on cosmetic pure pigments:

Improved color intensity: Smaller particles scatter light more effectively, resulting in a more vibrant and intense color.

Increased stability: Smaller particles are less likely to settle or separate, which can improve the stability of a cosmetic product containing pure pigments.

Improved dispersion: Smaller particles are more easily dispersed in a liquid or cream, which can improve the overall performance of a product containing pure pigments.

Increased sunscreen efficacy: Micronized titanium dioxide and zinc oxide are widely used as sunscreen ingredients, they provide better UV protection due to the smaller particle size.

Improved aesthetic appeal: Pure pigments often provide a very bold and striking color, but can be difficult to apply due to their coarseness. Micronization can help to make these pigments more user-friendly and pleasant to use.

Improved feel: The particle size of pure pigments is reduced through micronization, the powder becomes finer and smoother. This can result in a more pleasant sensation when the product is applied to the skin, as the powder will not feel as gritty or rough, resulting in a more natural and even appearance. Additionally, the smaller particle size can help to reduce the amount of powder needed to achieve the desired color, which can make the product feel lighter on the skin.

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