botanical
Rice Starch
A plant-derived starch used in dry shampoo formulations and powder cosmetics as an oil absorbent and texture modifier. A natural talc alternative with K-beauty heritage in rice water beauty traditions.
Benefits
- Oil and sebum absorption
- Softening and conditioning texture
- Mattifying effect
- Skin conditioning — mild rice-protein co-fraction
- Biodegradable and plant-derived
Example uses
- Dry shampoo formulations
- Loose setting powders
- Talc-free foundations
- Pressed powder formulas
- Oil-control facial powders
Mechanism of action
Starch granule (5–10 micron) surface binds sebum via capillary action and electrostatic interaction. High surface area relative to particle size enables efficient oil absorption. Mild skin conditioning from co-extracted rice proteins (oryzenin).
Clinical evidence · High
Well-characterised starch. Safety confirmed by CIR. Mechanism physical.
Effective concentration range
5–25% in powder formulas
Formulation notes
Used in anhydrous powder formulations. Functions as dry binder and oil absorber. Moisture-sensitive — manufacturing humidity control required.
Watchouts
Risk of microbial growth in water-containing formulations if inadequately preserved. Slightly coarser particle distribution than synthetic powders may affect skin feel.
Stacks with
Controversies & overclaims
No significant controversy.
Market positioning
Marketed as natural talc alternative with K-beauty heritage. Accurate functional description and culturally relevant positioning.
Comedogenicity
0 / 5
Sensitisation risk
Low
INCI & aliases
Oryza Sativa Starch
oryza sativa starch · rice starch · glutinous rice starch
Clean beauty perception
Strongly accepted in clean beauty. K-beauty rice heritage and Korean beauty tradition supporting consumer familiarity.
Related ingredients
Graph relationships
Timeline