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Cosmetic-Grade Sericite

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General Information

Product Name: Cosmetic-Grade Sericite
Catalog: CI-IFP-003
Applications: Foundations, loose & pressed powders, eyeshadows, blushes, lipsticks & balms, creams & lotions, sunscreen products, pearl creams.

Cosmetic-grade sericite is a natural, layered silicate mineral, highly valued for its unique physical and chemical attributes. Chemically similar to muscovite, its primary components are silicon dioxide (SiO₂), aluminum oxide (Al₂O₃), and potassium oxide (K₂O). Sericite boasts an exceptionally high aspect ratio due to its fine, flaky structure. Individual platelets can be less than 1µm thick, theoretically reaching as small as 0.001µm, making it a highly functional ingredient for a wide range of cosmetic applications.

Basic Properties

Items	Type I	Type II	Type III	Type IV
D50 (μm)	≤ 16	≤ 14	≤ 12	≤ 10
Whiteness (%)	≥ 77	≥ 78	≥ 79	≥ 80
Sieve Residue (325 mesh, %)	≤ 0.1	≤ 0.1	≤ 0.1	≤ 0.1
Pb (ppm)	≤ 10	≤ 10	≤ 10	≤ 10
As (ppm)	≤ 2	≤ 2	≤ 2	≤ 2
Hg (ppm)	≤ 1	≤ 1	≤ 1	≤ 1

Characteristics of Cosmetic-Grade Sericite

The natural composition and unique structure of sericite contribute to its superior qualities, making it a preferred choice for high-end cosmetic formulations:

Velvety Texture & Soft-Focus Effect: The lamellar structure imparts a silky-smooth skin feel, enhancing product luxury and sensory appeal while diffusing light for a flawless, soft-focus finish.
Excellent Dispersibility: Sericite disperses readily in water, glycerin, and oil-based systems, enabling uniform distribution in emulsions, suspensions, and pressed powders without agglomeration.
Superior Skin Adhesion & Elasticity: The flakes form a flexible, breathable film on the skin that enhances wear time and reduces transfer, particularly in long-lasting and sweat-resistant formulations.
Natural UV Protection: As a non-whitening inorganic UV shield, sericite offers broad-spectrum UV reflectivity, outperforming titanium dioxide and zinc oxide in select formulations, and contributes to SPF enhancement.
Chemical Stability: Its high resistance to degradation under formulation conditions ensures stability over a wide pH range and during heat processing.

Applications Across Cosmetic Categories

Cosmetic-grade sericite's versatile properties make it an indispensable ingredient across a broad spectrum of cosmetic products:

Foundations: Achieve a delicate, natural-looking finish with enhanced luminosity.
Loose & Pressed Powders: Excellent for setting makeup, providing superior coverage, and ensuring long-lasting wear.
Eyeshadows: It delivers rich, nuanced color with a soft shimmer, elevating eye makeup artistry.
Blushes: It ensures smooth application and even color distribution for a natural, healthy flush.
Lipsticks & Balms: It contributes to a smooth glide, comfortable wear, and a refined finish.
Creams & Lotions: It enhances texture, provides a silky feel, and can offer subtle mattifying benefits.
Sunscreen Products: It naturally boosts SPF values and provides broad-spectrum UV protection.
Pearl Creams: It imparts a delicate luster and a luxurious, smooth feel, enhancing product aesthetics.

Packaging

Available in 25KG bags, supplied in durable, laminated plastic woven bags to ensure product integrity and ease of handling.

Cosmetic-grade sericite is a multifunctional, natural mineral that not only enhances the tactile and visual appeal of cosmetic products but also contributes to formulation stability, skin protection, and sensory performance. Partner with us for high-performance cosmetic-grade sericite tailored to elevate your formulation's functionality and appeal.

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