Product Description

Pure Silicon Dioxide is an inert white fine powder, tasteless and odorless, with excellent physical stability and low chemical reactivity. It is insoluble in water and most solvents, widely used as a functional excipient in dietary supplements, tablets and capsule formulations. It can effectively prevent powder caking and greatly enhance the flow property of mixed raw materials during production. It can also act as an adsorbent to convert oily or liquid active substances into free-flowing powder. It does not react with other active ingredients and will not affect the efficacy of the main components in the formula. It features low bulk density and good dispersibility, and complies with international food and supplement additive standards for safe application. It can reduce the hygroscopic risk of moisture-sensitive botanical extracts in compound blends. It is suitable for clean-label formulas and meets USP and FCC specification requirements.

COA

Test Items	Specification	Test Result
Appearance	White fine powder	Complies
Assay (SiO₂)	≥99.0%	99.51%
Loss on Drying	≤5.0%	2.34%
Ignition Residue	Meet requirement	Complies
Pb	≤2.0 mg/kg	<0.3 mg/kg
As	≤2.0 mg/kg	<0.2 mg/kg
Total Aerobic Bacteria	≤1000 CFU/g	120 CFU/g
Yeast & Mold	≤100 CFU/g	<10 CFU/g
E.coli	Negative	Negative
Conclusion	Complies with USP43-NF38 & FCC	Pass
Storage	Cool & dry, sealed, avoid light & heat	-

Functions and Effects

Pure Silicon Dioxide serves as a reliable anti-caking agent to avoid powder clumping in mixed supplement raw materials. It optimizes powder flowability to ensure consistent filling for tablets and capsules during mass production. It works as an adsorbent to absorb liquid or oily active components and turn them into free-flowing powder. It protects moisture-sensitive ingredients and reduces the risk of formula deterioration caused by humidity. As an inert excipient, it will not chemically interact with active substances or alter their effectiveness. It also helps adjust bulk density of powder blends and improves the uniformity of multi-component formulations. It maintains stable physical properties across a wide temperature range in finished health products. It can minimize separation between different powder ingredients during storage and transportation. It helps reduce static electricity of fine powder materials during manufacturing operations. It can be used together with other common excipients without causing adverse reactions in compound formulas.

Application Fields

Pure Silicon Dioxide is widely used as a functional excipient in dietary supplements, herbal powder blends, tablets and hard capsule formulations. It is commonly added into compound plant extracts, amino acid powders and mineral premixes to improve processing performance. It is also applied in food seasonings and functional food powders to prevent agglomeration and maintain free-flow properties. It can be used to adsorb oily active substances for converting liquids into easy-to-handle powder form. It is suitable for clean-label health products and complies with global food additive standards. It can also be used in cosmetic powder formulas to enhance spreadability and absorb excess surface oil. It has good compatibility with most plant extracts, vitamins and amino acid raw materials in various compound formulas. It can be adopted in solid pharmaceutical preparations as a flow aid and anti-caking auxiliary material. It works well in sports nutrition powder mixes to maintain stable physical state during long-term storage. It can also be used in animal nutritional additives to improve the flow characteristics of feed premix powder.