Oryza Sativa (Rice) Starch

Benefits
Soothing

What is Oryza Sativa (Rice) Starch?

Oryza Sativa (Rice) Starch is a fine, white powder derived from the endosperm of rice grains (Oryza sativa), a cereal grain cultivated worldwide. Chemically, it consists primarily of amylose and amylopectin polysaccharides forming starch granules. In cosmetics, it functions across categories like powders, emulsions, and anhydrous products. It excels as an absorbent by wicking away sebum and moisture to mattify skin and prevent caking. As a bulking agent, it adds volume without heaviness, aiding in formula design for better economics and sensory appeal. Binding capabilities strengthen solid forms like compacts, while viscosity control stabilizes suspensions and improves flow. Sourced via milling and purification, this plant-based ingredient offers a smooth, talc-like slip ideal for clean beauty formulations seeking natural alternatives.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1-2 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Absorbent
Absorbs water and/or sebum to reduce greasiness and shine, improve dry touch, and help keep powders and emulsions feeling lighter on skin.
Bulking agent
Increases mass/volume to build structure and improve handling, commonly used to adjust feel, spread, and cost-in-use without acting as a primary active.
Binding
Provides cohesion by helping ingredients stick together, improving the strength and integrity of pressed powders, tablets, or solid bars.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Absorbs sebum to minimize shine and greasiness

Provides soothing comfort to skin

Enhances product structure and spreadability for lighter feel

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with oily or combination skin seeking mattification
Those with rare rice protein allergies
Individuals with sensitive skin needing gentle absorbents
People experiencing starch sensitivities
Users of powders and emulsions preferring natural texturizers
Anyone noticing reactions in patch tests

Safety Notes

  • Low hazard rating from EWG assessments
  • Non-comedogenic with rating of 0 for pore safety

Frequently Asked Questions about Oryza Sativa (Rice) Starch

Is Oryza Sativa Starch safe for daily use?

Yes, it carries a low hazard rating and supports gentle, everyday cosmetic applications.

Does rice starch help with oily skin?

It absorbs excess sebum effectively, promoting a matte appearance.

Can sensitive skin use products with rice starch?

Its soothing nature makes it suitable, though individual testing is advised.